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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Bloise%2C+C&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Bloise%2C+C&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Bloise%2C+C&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.15609">arXiv:2401.15609</a> <span> [<a href="https://arxiv.org/pdf/2401.15609">pdf</a>, <a href="https://arxiv.org/format/2401.15609">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1109/TNS.2023.3264757">10.1109/TNS.2023.3264757 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Mu2e crystal and SiPM calorimeter: construction status </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Atanov%2C+N">Nikolay Atanov</a>, <a href="/search/hep-ex?searchtype=author&query=Baranov%2C+V">Vladimir Baranov</a>, <a href="/search/hep-ex?searchtype=author&query=Borrel%2C+L">Leo Borrel</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">Caterina Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Budagov%2C+J">Julian Budagov</a>, <a href="/search/hep-ex?searchtype=author&query=Ceravol%2C+S">Sergio Ceravol</a>, <a href="/search/hep-ex?searchtype=author&query=Cervelli%2C+F">Franco Cervelli</a>, <a href="/search/hep-ex?searchtype=author&query=Colao%2C+F">Francesco Colao</a>, <a href="/search/hep-ex?searchtype=author&query=Cordelli%2C+M">Marco Cordelli</a>, <a href="/search/hep-ex?searchtype=author&query=Corradi%2C+G">Giovanni Corradi</a>, <a href="/search/hep-ex?searchtype=author&query=Davydov%2C+Y">Yuri Davydov</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Falco%2C+S">Stefano Di Falco</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">Eleonora Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Donati%2C+S">Simone Donati</a>, <a href="/search/hep-ex?searchtype=author&query=Echenard%2C+B">Bertrand Echenard</a>, <a href="/search/hep-ex?searchtype=author&query=Ferrari%2C+C">Carlo Ferrari</a>, <a href="/search/hep-ex?searchtype=author&query=Gargiulo%2C+R">Ruben Gargiulo</a>, <a href="/search/hep-ex?searchtype=author&query=Gioiosa%2C+A">Antonio Gioiosa</a>, <a href="/search/hep-ex?searchtype=author&query=Giovannella%2C+S">Simona Giovannella</a>, <a href="/search/hep-ex?searchtype=author&query=Giusti%2C+V">Valerio Giusti</a>, <a href="/search/hep-ex?searchtype=author&query=Glagolev%2C+V">Vladimir Glagolev</a>, <a href="/search/hep-ex?searchtype=author&query=Grancagnolo%2C+F">Francesco Grancagnolo</a>, <a href="/search/hep-ex?searchtype=author&query=Hampai%2C+D">Dariush Hampai</a>, <a href="/search/hep-ex?searchtype=author&query=Happacher%2C+F">Fabio Happacher</a>, <a href="/search/hep-ex?searchtype=author&query=Hitlin%2C+D">David Hitlin</a> , et al. (15 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2401.15609v1-abstract-short" style="display: inline;"> The Mu2e experiment at Fermilab searches for the neutrino-less conversion of a negative muon into an electron, with a distinctive signature of a mono-energetic electron with energy of 104.967 MeV. The calorimeter is made of two disks of pure CsI crystals, each read out by two custom large area UV-extended SiPMs. It plays a fundamental role in providing excellent particle identification capabilitie… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.15609v1-abstract-full').style.display = 'inline'; document.getElementById('2401.15609v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.15609v1-abstract-full" style="display: none;"> The Mu2e experiment at Fermilab searches for the neutrino-less conversion of a negative muon into an electron, with a distinctive signature of a mono-energetic electron with energy of 104.967 MeV. The calorimeter is made of two disks of pure CsI crystals, each read out by two custom large area UV-extended SiPMs. It plays a fundamental role in providing excellent particle identification capabilities and an online trigger filter while improving the track reconstruction, requiring better than 10% energy and 500 ps timing resolutions for 100 MeV electrons. In this paper, we present the status of construction and the Quality Control (QC) performed on the produced crystals and photosensors, the development of the rad-hard electronics, and the most important results of the irradiation tests. Construction of the mechanics is also reported. Status and plans for the calorimeter assembly and its first commissioning are described. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.15609v1-abstract-full').style.display = 'none'; document.getElementById('2401.15609v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 70, NO. 7, 2023 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.12377">arXiv:2211.12377</a> <span> [<a href="https://arxiv.org/pdf/2211.12377">pdf</a>, <a href="https://arxiv.org/format/2211.12377">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Ber%C5%82owski%2C+M">M. Ber艂owski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Amico%2C+R">R. D'Amico</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">E. Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+G">G. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a>, <a href="/search/hep-ex?searchtype=author&query=Gamrat%2C+S">S. Gamrat</a>, <a href="/search/hep-ex?searchtype=author&query=Gauzzi%2C+P">P. Gauzzi</a> , et al. (18 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.12377v3-abstract-short" style="display: inline;"> Tests of the T, CP and CPT symmetries in the neutral kaon system are performed by the direct comparison of the probabilities of a kaon transition process to its symmetry-conjugate. The exchange of in and out states required for a genuine test involving an anti-unitary transformation implied by time-reversal is implemented exploiting the entanglement of $K^0\bar{K}{}^0$ pairs produced at a $蠁$-fact… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.12377v3-abstract-full').style.display = 'inline'; document.getElementById('2211.12377v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.12377v3-abstract-full" style="display: none;"> Tests of the T, CP and CPT symmetries in the neutral kaon system are performed by the direct comparison of the probabilities of a kaon transition process to its symmetry-conjugate. The exchange of in and out states required for a genuine test involving an anti-unitary transformation implied by time-reversal is implemented exploiting the entanglement of $K^0\bar{K}{}^0$ pairs produced at a $蠁$-factory. A data sample collected by the KLOE experiment at DA$桅$NE corresponding to an integrated luminosity of about 1.7 fb$^{-1}$ is analysed to study the $螖$t distributions of the $蠁\to K_{S}K_{L}\to 蟺^+蟺^- \: 蟺^{\pm}e^{\mp}谓$ and $蠁\to K_{S}K_{L}\to 蟺^{\pm}e^{\mp}谓\: 3蟺^0$ processes, with $螖$t the difference of the kaon decay times. A comparison of the measured $螖$t distributions in the asymptotic region $螖t \gg 蟿_{S}$ allows to test for the first time T and CPT symmetries in kaon transitions with a precision of few percent, and to observe CP violation with this novel method. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.12377v3-abstract-full').style.display = 'none'; document.getElementById('2211.12377v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">26 pages, 10 figures. Minor style corrections applied before journal submission. Sumbmitted to Physics Letters B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.12608">arXiv:2209.12608</a> <span> [<a href="https://arxiv.org/pdf/2209.12608">pdf</a>, <a href="https://arxiv.org/format/2209.12608">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> An automated QC Station for the Calibration of the Mu2e Calorimeter Readout Units </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Sanzani%2C+E">E. Sanzani</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Ceravolo%2C+S">S. Ceravolo</a>, <a href="/search/hep-ex?searchtype=author&query=Cervelli%2C+F">F. Cervelli</a>, <a href="/search/hep-ex?searchtype=author&query=Colao%2C+F">F. Colao</a>, <a href="/search/hep-ex?searchtype=author&query=Cordelli%2C+M">M. Cordelli</a>, <a href="/search/hep-ex?searchtype=author&query=Corradi%2C+G">G. Corradi</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Falco%2C+S">S. Di Falco</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">E. Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Donati%2C+S">S. Donati</a>, <a href="/search/hep-ex?searchtype=author&query=Ferrari%2C+C">C. Ferrari</a>, <a href="/search/hep-ex?searchtype=author&query=Gargiulo%2C+R">R. Gargiulo</a>, <a href="/search/hep-ex?searchtype=author&query=Gioiosa%2C+A">A. Gioiosa</a>, <a href="/search/hep-ex?searchtype=author&query=Giovannella%2C+S">S. Giovannella</a>, <a href="/search/hep-ex?searchtype=author&query=Giusti%2C+V">V. Giusti</a>, <a href="/search/hep-ex?searchtype=author&query=Hampai%2C+D">D. Hampai</a>, <a href="/search/hep-ex?searchtype=author&query=Happacher%2C+F">F. Happacher</a>, <a href="/search/hep-ex?searchtype=author&query=Martini%2C+M">M. Martini</a>, <a href="/search/hep-ex?searchtype=author&query=Miscetti%2C+S">S. Miscetti</a>, <a href="/search/hep-ex?searchtype=author&query=Morescalchi%2C+L">L. Morescalchi</a>, <a href="/search/hep-ex?searchtype=author&query=Paesani%2C+D">D. Paesani</a>, <a href="/search/hep-ex?searchtype=author&query=Pasciuto%2C+D">D. Pasciuto</a>, <a href="/search/hep-ex?searchtype=author&query=Pedreschi%2C+E">E. Pedreschi</a>, <a href="/search/hep-ex?searchtype=author&query=Raffaelli%2C+F">F. Raffaelli</a>, <a href="/search/hep-ex?searchtype=author&query=Sarra%2C+I">I. Sarra</a> , et al. (3 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.12608v1-abstract-short" style="display: inline;"> The Mu2e calorimeter will employ Readout Units, each made of two Silicon Photomultipliers arrays and two Front End Electronics boards. To calibrate them, we have designed, assembled and put in operation an automated Quality Control (QC) station. Gain, collected charge and photon detection efficiency are evaluated for each unit. In this paper, the QC Station is presented, in its hardware and softwa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.12608v1-abstract-full').style.display = 'inline'; document.getElementById('2209.12608v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.12608v1-abstract-full" style="display: none;"> The Mu2e calorimeter will employ Readout Units, each made of two Silicon Photomultipliers arrays and two Front End Electronics boards. To calibrate them, we have designed, assembled and put in operation an automated Quality Control (QC) station. Gain, collected charge and photon detection efficiency are evaluated for each unit. In this paper, the QC Station is presented, in its hardware and software aspects, summarizing also the tests performed on the ROUs and the first measurement results. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.12608v1-abstract-full').style.display = 'none'; document.getElementById('2209.12608v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To appear on NIM</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.04872">arXiv:2208.04872</a> <span> [<a href="https://arxiv.org/pdf/2208.04872">pdf</a>, <a href="https://arxiv.org/format/2208.04872">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the $K_S \to 蟺e 谓$ branching fraction with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Amico%2C+R">R. D'Amico</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">E. Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+G">G. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a>, <a href="/search/hep-ex?searchtype=author&query=Gamrat%2C+S">S. Gamrat</a> , et al. (18 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2208.04872v4-abstract-short" style="display: inline;"> The branching fraction for the decay $K_S \to 蟺e 谓$ has been measured with a sample of 300 million $K_S$ mesons produced in $蠁\to K_L K_S$ decays recorded by the KLOE experiment at the DA$桅$NE $e^+e^-$ collider. Signal decays are selected by a boosted decision tree built with kinematic variables and time-of-flight measurements. Data control samples of $K_L \to 蟺e 谓$ decays are used to evaluate sig… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.04872v4-abstract-full').style.display = 'inline'; document.getElementById('2208.04872v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.04872v4-abstract-full" style="display: none;"> The branching fraction for the decay $K_S \to 蟺e 谓$ has been measured with a sample of 300 million $K_S$ mesons produced in $蠁\to K_L K_S$ decays recorded by the KLOE experiment at the DA$桅$NE $e^+e^-$ collider. Signal decays are selected by a boosted decision tree built with kinematic variables and time-of-flight measurements. Data control samples of $K_L \to 蟺e 谓$ decays are used to evaluate signal selection efficiencies. A fit to the reconstructed electron mass distribution finds 49647$\pm$316 signal events. Normalising to the $K_S \to 蟺^+蟺^-$ decay events the result for the branching fraction is $\mathcal{B}(K_S \to 蟺e 谓) = (7.211 \pm 0.046_{\rm stat} \pm 0.052_{\rm syst}) \times10^{-4}$. The combination with our previous measurement gives $\mathcal{B}(K_S \to 蟺e 谓) = (7.153 \pm 0.037_{\rm stat} \pm 0.043_{\rm syst}) \times10^{-4}$. From this value we derive $f_+(0)|V_{us}| = 0.2170 \pm 0.009$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.04872v4-abstract-full').style.display = 'none'; document.getElementById('2208.04872v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">arXiv admin note: substantial text overlap with arXiv:1912.05990</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.08278">arXiv:2203.08278</a> <span> [<a href="https://arxiv.org/pdf/2203.08278">pdf</a>, <a href="https://arxiv.org/format/2203.08278">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> A New Charged Lepton Flavor Violation Program at Fermilab </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Aoki%2C+M">M. Aoki</a>, <a href="/search/hep-ex?searchtype=author&query=Appleby%2C+R+B">R. B. Appleby</a>, <a href="/search/hep-ex?searchtype=author&query=Aslaninejad%2C+M">M. Aslaninejad</a>, <a href="/search/hep-ex?searchtype=author&query=Barlow%2C+R">R. Barlow</a>, <a href="/search/hep-ex?searchtype=author&query=Bernstein%2C+R+H">R. H. Bernstein</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Calibbi%2C+L">L. Calibbi</a>, <a href="/search/hep-ex?searchtype=author&query=Cervelli%2C+F">F. Cervelli</a>, <a href="/search/hep-ex?searchtype=author&query=Culbertson%2C+R">R. Culbertson</a>, <a href="/search/hep-ex?searchtype=author&query=de+Gouvea%2C+A+L">Andre Luiz de Gouvea</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Falco%2C+S">S. Di Falco</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">E. Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Donati%2C+S">S. Donati</a>, <a href="/search/hep-ex?searchtype=author&query=Donghia%2C+R">R. Donghia</a>, <a href="/search/hep-ex?searchtype=author&query=Echenard%2C+B">B. Echenard</a>, <a href="/search/hep-ex?searchtype=author&query=Gaponenko%2C+A">A. Gaponenko</a>, <a href="/search/hep-ex?searchtype=author&query=Giovannella%2C+S">S. Giovannella</a>, <a href="/search/hep-ex?searchtype=author&query=Group%2C+C">C. Group</a>, <a href="/search/hep-ex?searchtype=author&query=Happacher%2C+F">F. Happacher</a>, <a href="/search/hep-ex?searchtype=author&query=Hedges%2C+M+T">M. T. Hedges</a>, <a href="/search/hep-ex?searchtype=author&query=Hitlin%2C+D+G">D. G. Hitlin</a>, <a href="/search/hep-ex?searchtype=author&query=Hungerford%2C+E">E. Hungerford</a>, <a href="/search/hep-ex?searchtype=author&query=Johnstone%2C+C">C. Johnstone</a>, <a href="/search/hep-ex?searchtype=author&query=Kaplan%2C+D+M">D. M. Kaplan</a>, <a href="/search/hep-ex?searchtype=author&query=Kargiantoulakis%2C+M">M. Kargiantoulakis</a> , et al. (43 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.08278v1-abstract-short" style="display: inline;"> The muon has played a central role in establishing the Standard Model of particle physics, and continues to provide valuable information about the nature of new physics. A new complex at Fermilab, the Advanced Muon Facility, would provide the world's most intense positive and negative muon beams by exploiting the full potential of PIP-II and the Booster upgrade. This facility would enable a broad… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.08278v1-abstract-full').style.display = 'inline'; document.getElementById('2203.08278v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.08278v1-abstract-full" style="display: none;"> The muon has played a central role in establishing the Standard Model of particle physics, and continues to provide valuable information about the nature of new physics. A new complex at Fermilab, the Advanced Muon Facility, would provide the world's most intense positive and negative muon beams by exploiting the full potential of PIP-II and the Booster upgrade. This facility would enable a broad muon physics program, including studies of charged lepton flavor violation, muonium-antimuonium transitions, a storage ring muon EDM experiment, and muon spin rotation experiments. This document describes a staged realization of this complex, together with a series of next-generation experiments to search for charged lepton flavor violation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.08278v1-abstract-full').style.display = 'none'; document.getElementById('2203.08278v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">A Contributed Paper for Snowmass 2021</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.07569">arXiv:2203.07569</a> <span> [<a href="https://arxiv.org/pdf/2203.07569">pdf</a>, <a href="https://arxiv.org/format/2203.07569">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Mu2e-II: Muon to electron conversion with PIP-II </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Byrum%2C+K">K. Byrum</a>, <a href="/search/hep-ex?searchtype=author&query=Corrodi%2C+S">S. Corrodi</a>, <a href="/search/hep-ex?searchtype=author&query=Oksuzian%2C+Y">Y. Oksuzian</a>, <a href="/search/hep-ex?searchtype=author&query=Winter%2C+P">P. Winter</a>, <a href="/search/hep-ex?searchtype=author&query=Xia%2C+L">L. Xia</a>, <a href="/search/hep-ex?searchtype=author&query=Edmonds%2C+A+W+J">A. W. J. Edmonds</a>, <a href="/search/hep-ex?searchtype=author&query=Miller%2C+J+P">J. P. Miller</a>, <a href="/search/hep-ex?searchtype=author&query=Mott%2C+J">J. Mott</a>, <a href="/search/hep-ex?searchtype=author&query=Marciano%2C+W+J">W. J. Marciano</a>, <a href="/search/hep-ex?searchtype=author&query=Szafron%2C+R">R. Szafron</a>, <a href="/search/hep-ex?searchtype=author&query=Bonventre%2C+R">R. Bonventre</a>, <a href="/search/hep-ex?searchtype=author&query=Brown%2C+D+N">D. N. Brown</a>, <a href="/search/hep-ex?searchtype=author&query=Kolomensky%2C+Y+G">Yu. G. Kolomensky</a>, <a href="/search/hep-ex?searchtype=author&query=Ning%2C+O">O. Ning</a>, <a href="/search/hep-ex?searchtype=author&query=Singh%2C+V">V. Singh</a>, <a href="/search/hep-ex?searchtype=author&query=Prebys%2C+E">E. Prebys</a>, <a href="/search/hep-ex?searchtype=author&query=Borrel%2C+L">L. Borrel</a>, <a href="/search/hep-ex?searchtype=author&query=Echenard%2C+B">B. Echenard</a>, <a href="/search/hep-ex?searchtype=author&query=Hitlin%2C+D+G">D. G. Hitlin</a>, <a href="/search/hep-ex?searchtype=author&query=Hu%2C+C">C. Hu</a>, <a href="/search/hep-ex?searchtype=author&query=Lin%2C+D+X">D. X. Lin</a>, <a href="/search/hep-ex?searchtype=author&query=Middleton%2C+S">S. Middleton</a>, <a href="/search/hep-ex?searchtype=author&query=Porter%2C+F+C">F. C. Porter</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+L">L. Zhang</a>, <a href="/search/hep-ex?searchtype=author&query=Zhu%2C+R+-">R. -Y. Zhu</a> , et al. (83 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.07569v2-abstract-short" style="display: inline;"> An observation of Charged Lepton Flavor Violation (CLFV) would be unambiguous evidence for physics beyond the Standard Model. The Mu2e and COMET experiments, under construction, are designed to push the sensitivity to CLFV in the mu to e conversion process to unprecedented levels. Whether conversion is observed or not, there is a strong case to be made for further improving sensitivity, or for exa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.07569v2-abstract-full').style.display = 'inline'; document.getElementById('2203.07569v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.07569v2-abstract-full" style="display: none;"> An observation of Charged Lepton Flavor Violation (CLFV) would be unambiguous evidence for physics beyond the Standard Model. The Mu2e and COMET experiments, under construction, are designed to push the sensitivity to CLFV in the mu to e conversion process to unprecedented levels. Whether conversion is observed or not, there is a strong case to be made for further improving sensitivity, or for examining the process on additional target materials. Mu2e-II is a proposed upgrade to Mu2e, with at least an additional order of magnitude in sensitivity to the conversion rate over Mu2e. The approach and challenges for this proposal are summarized. Mu2e-II may be regarded as the next logical step in a continued high-intensity muon program at FNAL. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.07569v2-abstract-full').style.display = 'none'; document.getElementById('2203.07569v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contribution to Snowmass 2021 46 pages 43 figures 7 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> 20220310: [CONF-22-123] </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.04328">arXiv:2111.04328</a> <span> [<a href="https://arxiv.org/pdf/2111.04328">pdf</a>, <a href="https://arxiv.org/format/2111.04328">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Precision tests of Quantum Mechanics and CPT symmetry with entangled neutral kaons at KLOE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Amico%2C+R">R. D'Amico</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">E. Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+G">G. Fantini</a> , et al. (33 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.04328v2-abstract-short" style="display: inline;"> The quantum interference between the decays of entangled neutral kaons is studied in the process $蠁\rightarrow K_S K_L \rightarrow蟺^+蟺^-蟺^+蟺^-$, which exhibits the characteristic Einstein--Podolsky--Rosen correlations that prevent both kaons to decay into $蟺^+蟺^-$ at the same time. This constitutes a very powerful tool for testing at the utmost precision the quantum coherence of the entangled kaon… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.04328v2-abstract-full').style.display = 'inline'; document.getElementById('2111.04328v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.04328v2-abstract-full" style="display: none;"> The quantum interference between the decays of entangled neutral kaons is studied in the process $蠁\rightarrow K_S K_L \rightarrow蟺^+蟺^-蟺^+蟺^-$, which exhibits the characteristic Einstein--Podolsky--Rosen correlations that prevent both kaons to decay into $蟺^+蟺^-$ at the same time. This constitutes a very powerful tool for testing at the utmost precision the quantum coherence of the entangled kaon pair state, and to search for tiny decoherence and CPT violation effects, which may be justified in a quantum gravity framework. The analysed data sample was collected with the KLOE detector at DA$桅$NE, the Frascati $蠁$-factory, and corresponds to an integrated luminosity of about 1.7 fb$^{-1}$, i.e. to about $1.7 \times 10^9$ $蠁\rightarrow K_S K_L$ decays produced. From the fit of the observed $螖t$ distribution, being $螖t$ the difference of the kaon decay times, the decoherence and CPT violation parameters of various phenomenological models are measured with a largely improved accuracy with respect to previous analyses. The results are consistent with no deviation from quantum mechanics and CPT symmetry, while for some parameters the precision reaches the interesting level at which -- in the most optimistic scenarios -- quantum gravity effects might show up. They provide the most stringent limits up to date on the considered models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.04328v2-abstract-full').style.display = 'none'; document.getElementById('2111.04328v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.14710">arXiv:2006.14710</a> <span> [<a href="https://arxiv.org/pdf/2006.14710">pdf</a>, <a href="https://arxiv.org/ps/2006.14710">ps</a>, <a href="https://arxiv.org/format/2006.14710">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP10(2020)047">10.1007/JHEP10(2020)047 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Upper limit on the $畏\to蟺^{+}蟺^{-}$ branching fraction with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Fermani%2C+P">P. Fermani</a>, <a href="/search/hep-ex?searchtype=author&query=Fiore%2C+S">S. Fiore</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a> , et al. (31 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.14710v2-abstract-short" style="display: inline;"> Based on an integrated luminosity of 1.61 fb$^{-1}$ $e^+e^-$ collision data collected with the KLOE detector at DA$桅$NE, the Frascati $蠁$-factory, a search for the $P$- and $CP$-violating decay $畏\to蟺^{+}蟺^{-}$ has been performed. Radiative $蠁\to畏纬$ decay is exploited to access the $畏$ mesons. No signal is observed in the $蟺^{+}蟺^{-}$ invariant mass spectrum, and the upper limit on the branching f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.14710v2-abstract-full').style.display = 'inline'; document.getElementById('2006.14710v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.14710v2-abstract-full" style="display: none;"> Based on an integrated luminosity of 1.61 fb$^{-1}$ $e^+e^-$ collision data collected with the KLOE detector at DA$桅$NE, the Frascati $蠁$-factory, a search for the $P$- and $CP$-violating decay $畏\to蟺^{+}蟺^{-}$ has been performed. Radiative $蠁\to畏纬$ decay is exploited to access the $畏$ mesons. No signal is observed in the $蟺^{+}蟺^{-}$ invariant mass spectrum, and the upper limit on the branching fraction at 90\% confidence level is determined to be ${\mathcal B}(畏\to蟺^{+}蟺^{-})<4.9\times10^{-6}$, which is approximately three times smaller than the previous KLOE result. From the combination of these two measurements we get ${\mathcal B}(畏\to蟺^{+}蟺^{-}) < 4.4\times10^{-6}$ at 90\% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.14710v2-abstract-full').style.display = 'none'; document.getElementById('2006.14710v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. High Energ. Phys. 2020, 47 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.05990">arXiv:1912.05990</a> <span> [<a href="https://arxiv.org/pdf/1912.05990">pdf</a>, <a href="https://arxiv.org/format/1912.05990">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2020.135378">10.1016/j.physletb.2020.135378 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the branching fraction for the decay $K_S \to 蟺渭谓$ with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwisnski%2C+E">E. Czerwisnski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Fermani%2C+P">P. Fermani</a>, <a href="/search/hep-ex?searchtype=author&query=Fiore%2C+S">S. Fiore</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a> , et al. (31 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1912.05990v3-abstract-short" style="display: inline;"> Based on a sample of 300 million $K_S$ mesons produced in $蠁\to K_L K_S$ decays recorded by the KLOE experiment at the DA$桅$NE $e^+e^-$ collider we have measured the branching fraction for the decay $K_S \to 蟺渭谓$. The $K_S$ mesons are identified by the interaction of $K_L$ mesons in the detector. The $K_S \to 蟺渭谓$ decays are selected by a boosted decision tree built with kinematic variables and by… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.05990v3-abstract-full').style.display = 'inline'; document.getElementById('1912.05990v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.05990v3-abstract-full" style="display: none;"> Based on a sample of 300 million $K_S$ mesons produced in $蠁\to K_L K_S$ decays recorded by the KLOE experiment at the DA$桅$NE $e^+e^-$ collider we have measured the branching fraction for the decay $K_S \to 蟺渭谓$. The $K_S$ mesons are identified by the interaction of $K_L$ mesons in the detector. The $K_S \to 蟺渭谓$ decays are selected by a boosted decision tree built with kinematic variables and by a time-of-flight measurement. Signal efficiencies are evaluated with data control samples of $K_L \to 蟺渭谓$ decays. A fit to the reconstructed muon mass distribution finds $7223 \pm 180$ signal events. Normalising to the $K_S \to 蟺^+ 蟺^-$ decay events the result for the branching fraction is $\mathcal{B}(K_S \to 蟺渭谓) = (4.56 \pm 0.11_{\rm stat} \pm 0.17_{\rm syst})\times10^{-4}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.05990v3-abstract-full').style.display = 'none'; document.getElementById('1912.05990v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 12 figures, Accepted in PLB</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.02691">arXiv:1807.02691</a> <span> [<a href="https://arxiv.org/pdf/1807.02691">pdf</a>, <a href="https://arxiv.org/format/1807.02691">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2018.08.012">10.1016/j.physletb.2018.08.012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Combined limit on the production of a light gauge boson decaying into $渭^+渭^-$ and $蟺^+蟺^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostinio%2C+G">G. D'Agostinio</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A9%2C+E">E. Dan茅</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a> , et al. (35 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1807.02691v2-abstract-short" style="display: inline;"> We searched for the $渭^+渭^-$ decay of a light vector gauge boson, also known as dark photon, in the $e^+ e^- \to 渭^+ 渭^- 纬_{\rm ISR}$ process by means of the Initial State Radiation (ISR) method. We used 1.93~fb$^{-1}$ of data collected by the KLOE experiment at the DA$桅$NE $蠁$-factory. No structures have been observed over the irreducible $渭^+ 渭^-$ background. A 90\% CL limit on the ratio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.02691v2-abstract-full').style.display = 'inline'; document.getElementById('1807.02691v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.02691v2-abstract-full" style="display: none;"> We searched for the $渭^+渭^-$ decay of a light vector gauge boson, also known as dark photon, in the $e^+ e^- \to 渭^+ 渭^- 纬_{\rm ISR}$ process by means of the Initial State Radiation (ISR) method. We used 1.93~fb$^{-1}$ of data collected by the KLOE experiment at the DA$桅$NE $蠁$-factory. No structures have been observed over the irreducible $渭^+ 渭^-$ background. A 90\% CL limit on the ratio $\varepsilon^2=伪^{\prime}/伪$ between the dark coupling constant and the fine structure constant of $ 3\times 10^{-6}-2\times 10^{-7}$ has been set in the dark photon mass region between 519 MeV and 973 MeV. This new limit has been combined with the published result obtained investigating the hypothesis of the dark photon decaying into hadrons in $e^+ e^- \to 蟺^+ 蟺^- 纬_{\rm ISR}$ events. The combined 90\% CL limit increases the sensitivity especially in the $蟻-蠅$ interference region and excludes $\varepsilon^2$ greater than $(13-2)\times 10^{-7}$. For dark photon masses greater than 600 MeV the combined limit is lower than 8~$\times\, 10^{-7}$ resulting more stringent than present constraints from other experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.02691v2-abstract-full').style.display = 'none'; document.getElementById('1807.02691v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 9 figures, 1 table, accepted for publication in Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 784 (2018), 336 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.08654">arXiv:1806.08654</a> <span> [<a href="https://arxiv.org/pdf/1806.08654">pdf</a>, <a href="https://arxiv.org/format/1806.08654">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP09(2018)021">10.1007/JHEP09(2018)021 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the charge asymmetry for the $K_S \rightarrow 蟺e 谓$ decay and test of CPT symmetry with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Ber%C5%82owski%2C+M">M. Ber艂owski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+G">G. Fantini</a> , et al. (35 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1806.08654v2-abstract-short" style="display: inline;"> Using 1.63 fb$^{-1}$ of integrated luminosity collected by the KLOE experiment about $7\times 10^4$ $K_S \rightarrow 蟺^{\pm}e^{\mp}谓$ decays have been reconstructed. The measured value of the charge asymmetry for this decay is $A_S = (-4.9 \pm 5.7_{stat} \pm 2.6_{syst}) \times 10^{-3}$, which is almost twice more precise than the previous KLOE result. The combination of these two measurements give… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.08654v2-abstract-full').style.display = 'inline'; document.getElementById('1806.08654v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.08654v2-abstract-full" style="display: none;"> Using 1.63 fb$^{-1}$ of integrated luminosity collected by the KLOE experiment about $7\times 10^4$ $K_S \rightarrow 蟺^{\pm}e^{\mp}谓$ decays have been reconstructed. The measured value of the charge asymmetry for this decay is $A_S = (-4.9 \pm 5.7_{stat} \pm 2.6_{syst}) \times 10^{-3}$, which is almost twice more precise than the previous KLOE result. The combination of these two measurements gives $A_S = (-3.8 \pm 5.0_{stat} \pm 2.6_{syst}) \times 10^{-3}$ and, together with the asymmetry of the $K_L$ semileptonic decay, provides significant tests of the CPT symmetry. The obtained results are in agreement with CPT invariance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.08654v2-abstract-full').style.display = 'none'; document.getElementById('1806.08654v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">submitted to JHEP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1802.02599">arXiv:1802.02599</a> <span> [<a href="https://arxiv.org/pdf/1802.02599">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Expression of Interest for Evolution of the Mu2e Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abusalma%2C+F">F. Abusalma</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrose%2C+D">D. Ambrose</a>, <a href="/search/hep-ex?searchtype=author&query=Artikov%2C+A">A. Artikov</a>, <a href="/search/hep-ex?searchtype=author&query=Bernstein%2C+R">R. Bernstein</a>, <a href="/search/hep-ex?searchtype=author&query=Blazey%2C+G+C">G. C. Blazey</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/hep-ex?searchtype=author&query=Bolton%2C+T">T. Bolton</a>, <a href="/search/hep-ex?searchtype=author&query=Bono%2C+J">J. Bono</a>, <a href="/search/hep-ex?searchtype=author&query=Bonventre%2C+R">R. Bonventre</a>, <a href="/search/hep-ex?searchtype=author&query=Bowring%2C+D">D. Bowring</a>, <a href="/search/hep-ex?searchtype=author&query=Brown%2C+D">D. Brown</a>, <a href="/search/hep-ex?searchtype=author&query=Brown%2C+D">D. Brown</a>, <a href="/search/hep-ex?searchtype=author&query=Byrum%2C+K">K. Byrum</a>, <a href="/search/hep-ex?searchtype=author&query=Campbell%2C+M">M. Campbell</a>, <a href="/search/hep-ex?searchtype=author&query=Caron%2C+J+-">J. -F. Caron</a>, <a href="/search/hep-ex?searchtype=author&query=Cervelli%2C+F">F. Cervelli</a>, <a href="/search/hep-ex?searchtype=author&query=Chokheli%2C+D">D. Chokheli</a>, <a href="/search/hep-ex?searchtype=author&query=Ciampa%2C+K">K. Ciampa</a>, <a href="/search/hep-ex?searchtype=author&query=Ciolini%2C+R">R. Ciolini</a>, <a href="/search/hep-ex?searchtype=author&query=Coleman%2C+R">R. Coleman</a>, <a href="/search/hep-ex?searchtype=author&query=Cronin-Hennessy%2C+D">D. Cronin-Hennessy</a>, <a href="/search/hep-ex?searchtype=author&query=Culbertson%2C+R">R. Culbertson</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+M+A">M. A. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Daniel%2C+A">A. Daniel</a> , et al. (103 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1802.02599v1-abstract-short" style="display: inline;"> We propose an evolution of the Mu2e experiment, called Mu2e-II, that would leverage advances in detector technology and utilize the increased proton intensity provided by the Fermilab PIP-II upgrade to improve the sensitivity for neutrinoless muon-to-electron conversion by one order of magnitude beyond the Mu2e experiment, providing the deepest probe of charged lepton flavor violation in the fores… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.02599v1-abstract-full').style.display = 'inline'; document.getElementById('1802.02599v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1802.02599v1-abstract-full" style="display: none;"> We propose an evolution of the Mu2e experiment, called Mu2e-II, that would leverage advances in detector technology and utilize the increased proton intensity provided by the Fermilab PIP-II upgrade to improve the sensitivity for neutrinoless muon-to-electron conversion by one order of magnitude beyond the Mu2e experiment, providing the deepest probe of charged lepton flavor violation in the foreseeable future. Mu2e-II will use as much of the Mu2e infrastructure as possible, providing, where required, improvements to the Mu2e apparatus to accommodate the increased beam intensity and cope with the accompanying increase in backgrounds. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.02599v1-abstract-full').style.display = 'none'; document.getElementById('1802.02599v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 February, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 4 figures, 1 table; Submitted to the Fermilab Physics Advisory Committee</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab-FN-1052 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.03085">arXiv:1711.03085</a> <span> [<a href="https://arxiv.org/pdf/1711.03085">pdf</a>, <a href="https://arxiv.org/format/1711.03085">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Combination of KLOE $蟽\big(e^+e^-\rightarrow蟺^+蟺^-纬(纬)\big)$ measurements and determination of $a_渭^{蟺^+蟺^-}$ in the energy range $0.10 < s < 0.95$ GeV$^2$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+T+K">The KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a> , et al. (41 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1711.03085v2-abstract-short" style="display: inline;"> The three precision measurements of the cross section $蟽\big(e^+e^-\rightarrow蟺^+蟺^-纬(纬)\big)$ using initial state radiation by the KLOE collaboration provide an important input for the prediction of the hadronic contribution to the anomalous magnetic moment of the muon. These measurements are correlated for both statistical and systematic uncertainties and, therefore, the simultaneous use of thes… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.03085v2-abstract-full').style.display = 'inline'; document.getElementById('1711.03085v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.03085v2-abstract-full" style="display: none;"> The three precision measurements of the cross section $蟽\big(e^+e^-\rightarrow蟺^+蟺^-纬(纬)\big)$ using initial state radiation by the KLOE collaboration provide an important input for the prediction of the hadronic contribution to the anomalous magnetic moment of the muon. These measurements are correlated for both statistical and systematic uncertainties and, therefore, the simultaneous use of these measurements requires covariance matrices that fully describe the correlations. We present the construction of these covariance matrices and use them to determine a combined KLOE measurement for $蟽\big(e^+e^-\rightarrow蟺^+蟺^-纬(纬)\big)$. We find, from this combination, a two-pion contribution to the muon magnetic anomaly in the energy range $0.10 < s < 0.95$ GeV$^2$ of $a_渭^{蟺^+蟺^-} = (489.8 \pm 1.7_{\rm stat} \pm 4.8_{\rm sys} ) \times 10^{-10}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.03085v2-abstract-full').style.display = 'none'; document.getElementById('1711.03085v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 8 figures. Version as published in JHEP 1803 (2018) 173</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1609.06631">arXiv:1609.06631</a> <span> [<a href="https://arxiv.org/pdf/1609.06631">pdf</a>, <a href="https://arxiv.org/format/1609.06631">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2016.12.016">10.1016/j.physletb.2016.12.016 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the running of the fine structure constant below 1 GeV with the KLOE Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+T+K">The KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A9%2C+E">E. Dan茅</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (42 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1609.06631v2-abstract-short" style="display: inline;"> We have measured the running of the effective QED coupling constant $伪(s)$ in the time-like region $0.6<\sqrt s< 0.975$ GeV with the KLOE detector at DA$桅$NE using the Initial State Radiation process $e^+e^-\to渭^+ 渭^-纬$. It represents the first measurement of the running of $伪(s)$ in this energy region. Our results show a more than 5$蟽$ significance of the hadronic contribution to the running of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.06631v2-abstract-full').style.display = 'inline'; document.getElementById('1609.06631v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1609.06631v2-abstract-full" style="display: none;"> We have measured the running of the effective QED coupling constant $伪(s)$ in the time-like region $0.6<\sqrt s< 0.975$ GeV with the KLOE detector at DA$桅$NE using the Initial State Radiation process $e^+e^-\to渭^+ 渭^-纬$. It represents the first measurement of the running of $伪(s)$ in this energy region. Our results show a more than 5$蟽$ significance of the hadronic contribution to the running of $伪(s)$, which is the strongest direct evidence both in time- and space-like regions achieved in a single measurement. By using the $e^+e^-\to蟺^+蟺^-$ cross section measured by KLOE, the real and imaginary part of the shift $螖伪(s)$ has been extracted. By a fit of the real part of $螖伪(s)$ and assuming the lepton universality the branching ratio $BR(蠅\to渭^+渭^-) = (6.6\pm1.4_{stat}\pm1.7_{syst})\cdot 10^{-5} $ has been determined. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.06631v2-abstract-full').style.display = 'none'; document.getElementById('1609.06631v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 September, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">19 pages, 8 figures, version accepted for publication in Phys. Lett. B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1603.06086">arXiv:1603.06086</a> <span> [<a href="https://arxiv.org/pdf/1603.06086">pdf</a>, <a href="https://arxiv.org/format/1603.06086">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2016.04.019">10.1016/j.physletb.2016.04.019 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Limit on the production of a new vector boson in $\mathrm{e^+ e^-}\rightarrow {\rm U}纬$, U$\rightarrow 蟺^+蟺^-$ with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (41 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1603.06086v1-abstract-short" style="display: inline;"> The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motivates searches in the mass range below 1 GeV. We present a search for such a particle, the dark photon, in ${\rm e^+ e^-}\rightarrow {\rm U}纬$, U$\rightarrow 蟺^+蟺^-$ based on 28 million $\mathrm{e^+ e^-} \rightarrow 蟺^+ 蟺^-纬$ events collected at DA$桅$NE by the KLOE experiment. The $蟺^+ 蟺^-$ production by in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.06086v1-abstract-full').style.display = 'inline'; document.getElementById('1603.06086v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1603.06086v1-abstract-full" style="display: none;"> The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motivates searches in the mass range below 1 GeV. We present a search for such a particle, the dark photon, in ${\rm e^+ e^-}\rightarrow {\rm U}纬$, U$\rightarrow 蟺^+蟺^-$ based on 28 million $\mathrm{e^+ e^-} \rightarrow 蟺^+ 蟺^-纬$ events collected at DA$桅$NE by the KLOE experiment. The $蟺^+ 蟺^-$ production by initial-state radiation compensates for a loss of sensitivity of previous KLOE ${\rm U} \rightarrow \mathrm{e^+ e^-}$, $渭^+渭^-$ searches due to the small branching ratios in the $蟻-蠅$ resonance region. We found no evidence for a signal and set a limit at 90\% CL on the mixing strength between the photon and the dark photon, $\varepsilon^2$, in the U mass range between $527$ and $987$~MeV. Above 700 MeV this new limit is more stringent than previous ones. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.06086v1-abstract-full').style.display = 'none'; document.getElementById('1603.06086v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 March, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 9 figures, 1 table, submitted to Phys. Lett. B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 757 (2016) pp. 356-361 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.06985">arXiv:1601.06985</a> <span> [<a href="https://arxiv.org/pdf/1601.06985">pdf</a>, <a href="https://arxiv.org/format/1601.06985">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Precision measurement of the $畏\to蟺^+蟺^-蟺^0$ Dalitz plot distribution with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A9%2C+E">E. Dan茅</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1601.06985v1-abstract-short" style="display: inline;"> Using $1.6$ fb$^{-1}$ of $e^+ e^-\to蠁\to畏纬$ data collected with the KLOE detector at DA$桅$NE, the Dalitz plot distribution for the $畏\to 蟺^+ 蟺^- 蟺^0$ decay is studied with the world's largest sample of $\sim 4.7 \cdot 10^6$ events. The Dalitz plot density is parametrized as a polynomial expansion up to cubic terms in the normalized dimensionless variables $X$ and $Y$. The experiment is sensitive t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06985v1-abstract-full').style.display = 'inline'; document.getElementById('1601.06985v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.06985v1-abstract-full" style="display: none;"> Using $1.6$ fb$^{-1}$ of $e^+ e^-\to蠁\to畏纬$ data collected with the KLOE detector at DA$桅$NE, the Dalitz plot distribution for the $畏\to 蟺^+ 蟺^- 蟺^0$ decay is studied with the world's largest sample of $\sim 4.7 \cdot 10^6$ events. The Dalitz plot density is parametrized as a polynomial expansion up to cubic terms in the normalized dimensionless variables $X$ and $Y$. The experiment is sensitive to all charge conjugation conserving terms of the expansion, including a $gX^2Y$ term. The statistical uncertainty of all parameters is improved by a factor two with respect to earlier measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06985v1-abstract-full').style.display = 'none'; document.getElementById('1601.06985v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 9 figures, supplement: an ascii table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.06565">arXiv:1601.06565</a> <span> [<a href="https://arxiv.org/pdf/1601.06565">pdf</a>, <a href="https://arxiv.org/ps/1601.06565">ps</a>, <a href="https://arxiv.org/format/1601.06565">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2016.04.015">10.1016/j.physletb.2016.04.015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $蠁\to 蟺^0 e^+e^-$ transition form factor with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1601.06565v2-abstract-short" style="display: inline;"> A measurement of the vector to pseudoscalar conversion decay $蠁\to 蟺^0 e^+e^-$ with the KLOE experiment is presented. A sample of $\sim 9500$ signal events was selected from a data set of 1.7 fb$^{-1}$ of $e^+e^-$ collisions at $\sqrt{s} \sim m_蠁$ collected at the DA$桅$NE $e^+e^-$ collider. These events were used to obtain the first measurement of the transition form factor $| F_{蠁蟺^0}(q^2) |$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06565v2-abstract-full').style.display = 'inline'; document.getElementById('1601.06565v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.06565v2-abstract-full" style="display: none;"> A measurement of the vector to pseudoscalar conversion decay $蠁\to 蟺^0 e^+e^-$ with the KLOE experiment is presented. A sample of $\sim 9500$ signal events was selected from a data set of 1.7 fb$^{-1}$ of $e^+e^-$ collisions at $\sqrt{s} \sim m_蠁$ collected at the DA$桅$NE $e^+e^-$ collider. These events were used to obtain the first measurement of the transition form factor $| F_{蠁蟺^0}(q^2) |$ and a new measurement of the branching ratio of the decay: $\rm{BR}\,(蠁\to 蟺^0 e^+e^-) = (\,1.35 \pm 0.05^{\,\,+0.05}_{\,\,-0.10}\,) \times 10 ^{-5}$. The result improves significantly on previous measurements and is in agreement with theoretical predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06565v2-abstract-full').style.display = 'none'; document.getElementById('1601.06565v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 4 figures; matches published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B 757 (2016) 362 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.00740">arXiv:1509.00740</a> <span> [<a href="https://arxiv.org/pdf/1509.00740">pdf</a>, <a href="https://arxiv.org/format/1509.00740">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.10.003">10.1016/j.physletb.2015.10.003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Limit on the production of a low-mass vector boson in $\mathrm{e}^{+}\mathrm{e}^{-} \to \mathrm{U}纬$, $\mathrm{U} \to \mathrm{e}^{+}\mathrm{e}^{-}$ with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a> , et al. (39 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1509.00740v2-abstract-short" style="display: inline;"> The existence of a new force beyond the Standard Model is compelling because it could explain several striking astrophysical observations which fail standard interpretations. We searched for the light vector mediator of this dark force, the $\mathrm{U}$ boson, with the KLOE detector at the DA$桅$NE $\mathrm{e}^{+}\mathrm{e}^{-}$ collider. Using an integrated luminosity of 1.54 fb$^{-1}$, we studied… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.00740v2-abstract-full').style.display = 'inline'; document.getElementById('1509.00740v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.00740v2-abstract-full" style="display: none;"> The existence of a new force beyond the Standard Model is compelling because it could explain several striking astrophysical observations which fail standard interpretations. We searched for the light vector mediator of this dark force, the $\mathrm{U}$ boson, with the KLOE detector at the DA$桅$NE $\mathrm{e}^{+}\mathrm{e}^{-}$ collider. Using an integrated luminosity of 1.54 fb$^{-1}$, we studied the process $\mathrm{e}^{+}\mathrm{e}^{-} \to \mathrm{U}纬$, with $\mathrm{U} \to \mathrm{e}^{+}\mathrm{e}^{-}$, using radiative-return to search for a resonant peak in the dielectron invariant-mass distribution. We did not find evidence for a signal, and set a 90\%~CL upper limit on the mixing strength between the Standard Model photon and the dark photon, $\varepsilon^2$, at $10^{-6}$--$10^{-4}$ in the 5--520~MeV/c$^2$ mass range. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.00740v2-abstract-full').style.display = 'none'; document.getElementById('1509.00740v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 October, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1501.06795">arXiv:1501.06795</a> <span> [<a href="https://arxiv.org/pdf/1501.06795">pdf</a>, <a href="https://arxiv.org/ps/1501.06795">ps</a>, <a href="https://arxiv.org/format/1501.06795">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.06.015">10.1016/j.physletb.2015.06.015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for dark Higgsstrahlung in e+ e- -> mu+ mu- and missing energy events with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%27%2C+E">E. Dane'</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Felici%2C+G">G. Felici</a>, <a href="/search/hep-ex?searchtype=author&query=Fiore%2C+S">S. Fiore</a> , et al. (34 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1501.06795v1-abstract-short" style="display: inline;"> We searched for evidence of a Higgsstrahlung process in a secluded sector, leading to a final state with a dark photon U and a dark Higgs boson h', with the KLOE detector at DAFNE. We investigated the case of h' lighter than U, with U decaying into a muon pair and h' producing a missing energy signature. We found no evidence of the process and set upper limits to its parameters in the range 2m_mu<… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.06795v1-abstract-full').style.display = 'inline'; document.getElementById('1501.06795v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1501.06795v1-abstract-full" style="display: none;"> We searched for evidence of a Higgsstrahlung process in a secluded sector, leading to a final state with a dark photon U and a dark Higgs boson h', with the KLOE detector at DAFNE. We investigated the case of h' lighter than U, with U decaying into a muon pair and h' producing a missing energy signature. We found no evidence of the process and set upper limits to its parameters in the range 2m_mu<m_U<1000 MeV, m_h'<m_U. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.06795v1-abstract-full').style.display = 'none'; document.getElementById('1501.06795v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 January, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 7 figures, submitted to Physics Letters B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1501.04807">arXiv:1501.04807</a> <span> [<a href="https://arxiv.org/pdf/1501.04807">pdf</a>, <a href="https://arxiv.org/format/1501.04807">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.5506/APhysPolB.46.5">10.5506/APhysPolB.46.5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Kaon physics with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a>, <a href="/search/hep-ex?searchtype=author&query=Kaminska%2C+D">D. Kaminska</a>, <a href="/search/hep-ex?searchtype=author&query=Moskal%2C+P">P. Moskal</a>, <a href="/search/hep-ex?searchtype=author&query=Silarski%2C+M">M. Silarski</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Passeri%2C+A">A. Passeri</a>, <a href="/search/hep-ex?searchtype=author&query=Wislicki%2C+W">W. Wislicki</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1501.04807v1-abstract-short" style="display: inline;"> In this paper we discuss the recent finalized analyses by the KLOE experiment at DA$桅$NE: the CPT and Lorentz invariance test with entangled $K^0 \bar{K}^0$ pairs, and the precision measurement of the branching fraction of the decay ${ K^+} \rightarrow 蟺^+蟺^-蟺^+(纬)$. We also present the status of an ongoing analysis aiming to precisely measure the $K^{\pm} $ mass. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1501.04807v1-abstract-full" style="display: none;"> In this paper we discuss the recent finalized analyses by the KLOE experiment at DA$桅$NE: the CPT and Lorentz invariance test with entangled $K^0 \bar{K}^0$ pairs, and the precision measurement of the branching fraction of the decay ${ K^+} \rightarrow 蟺^+蟺^-蟺^+(纬)$. We also present the status of an ongoing analysis aiming to precisely measure the $K^{\pm} $ mass. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.04807v1-abstract-full').style.display = 'none'; document.getElementById('1501.04807v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 January, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1409.4582">arXiv:1409.4582</a> <span> [<a href="https://arxiv.org/pdf/1409.4582">pdf</a>, <a href="https://arxiv.org/ps/1409.4582">ps</a>, <a href="https://arxiv.org/format/1409.4582">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.01.011">10.1016/j.physletb.2015.01.011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of Dalitz decay phi -> eta e+e- with KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%27%2C+E">E. Dane'</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a>, <a href="/search/hep-ex?searchtype=author&query=Fanizzi%2C+G">G. Fanizzi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1409.4582v1-abstract-short" style="display: inline;"> We have studied the vector to pseudoscalar conversion decay phi -> eta e+e-, with eta -> pi0pi0pi0, with the KLOE detector at DAPHNE. The data set of 1.7 fb-1 of e+e- collisions at sqrt(s)~Mphi contains a clear conversion decay signal of ~31,000 events from which we measured a value of BR(phi -> eta e+e-)=(1.075+-0.007+-0.038)x10-4. The same sample is used to determine the transition form factor b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.4582v1-abstract-full').style.display = 'inline'; document.getElementById('1409.4582v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1409.4582v1-abstract-full" style="display: none;"> We have studied the vector to pseudoscalar conversion decay phi -> eta e+e-, with eta -> pi0pi0pi0, with the KLOE detector at DAPHNE. The data set of 1.7 fb-1 of e+e- collisions at sqrt(s)~Mphi contains a clear conversion decay signal of ~31,000 events from which we measured a value of BR(phi -> eta e+e-)=(1.075+-0.007+-0.038)x10-4. The same sample is used to determine the transition form factor by a fit to the e+e- invariant mass spectrum, obtaining b(phi eta) =(1.17 +- 0.10 + 0.07) GeV-2, that improves by a factor of five the precision of the previous measurement and is in good agreement with VMD expectations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.4582v1-abstract-full').style.display = 'none'; document.getElementById('1409.4582v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 6 figures, submitted to PLB</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1404.7772">arXiv:1404.7772</a> <span> [<a href="https://arxiv.org/pdf/1404.7772">pdf</a>, <a href="https://arxiv.org/ps/1404.7772">ps</a>, <a href="https://arxiv.org/format/1404.7772">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.08.005">10.1016/j.physletb.2014.08.005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for light vector boson production in $e^+e^- \rightarrow 渭^+ 渭^- 纬$ interactions with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a>, <a href="/search/hep-ex?searchtype=author&query=Fanizzi%2C+G">G. Fanizzi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a> , et al. (44 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1404.7772v2-abstract-short" style="display: inline;"> We have searched for a light vector boson $U$, the possible carrier of a "dark force", with the KLOE detector at the DA$桅$NE \epm\ collider, motivated by astrophysical evidence for the presence of dark matter in the universe. Using \epm\ collisions collected with an integrated luminosity of $239.3$~pb$^{-1}$, we look for a dimuon mass peak in the reaction \epm\to$渭^+ 渭^-$\gam, corresponding to the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.7772v2-abstract-full').style.display = 'inline'; document.getElementById('1404.7772v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1404.7772v2-abstract-full" style="display: none;"> We have searched for a light vector boson $U$, the possible carrier of a "dark force", with the KLOE detector at the DA$桅$NE \epm\ collider, motivated by astrophysical evidence for the presence of dark matter in the universe. Using \epm\ collisions collected with an integrated luminosity of $239.3$~pb$^{-1}$, we look for a dimuon mass peak in the reaction \epm\to$渭^+ 渭^-$\gam, corresponding to the decay $U\to渭^+渭^-$. We find no evidence for a $U$ vector boson signal. We set a 90\% CL upper limit for the mixing parameter squared between the photon and the $U$ boson of 1.6$\times$10$^{-5}$ to 8.6$\times$10$^{-7}$ for the mass region $520<m_{\rm U}<980$ MeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.7772v2-abstract-full').style.display = 'none'; document.getElementById('1404.7772v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 August, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 7 figures, version accepted for publication in Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 736, 459 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1312.6818">arXiv:1312.6818</a> <span> [<a href="https://arxiv.org/pdf/1312.6818">pdf</a>, <a href="https://arxiv.org/ps/1312.6818">ps</a>, <a href="https://arxiv.org/format/1312.6818">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.01.026">10.1016/j.physletb.2014.01.026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Test of CPT and Lorentz symmetry in entangled neutral kaons with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (49 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1312.6818v2-abstract-short" style="display: inline;"> Neutral kaon pairs produced in phi decays in anti-symmetric entangled state can be exploited to search for violation of CPT symmetry and Lorentz invariance. We present an analysis of the CP-violating process phi->K_S K_L->pi+pi-pi+pi- based on 1.7 fb-1 of data collected by the KLOE experiment at the Frascati phi-factory DAFNE. The data are used to perform a measurement of the CPT-violating paramet… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.6818v2-abstract-full').style.display = 'inline'; document.getElementById('1312.6818v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1312.6818v2-abstract-full" style="display: none;"> Neutral kaon pairs produced in phi decays in anti-symmetric entangled state can be exploited to search for violation of CPT symmetry and Lorentz invariance. We present an analysis of the CP-violating process phi->K_S K_L->pi+pi-pi+pi- based on 1.7 fb-1 of data collected by the KLOE experiment at the Frascati phi-factory DAFNE. The data are used to perform a measurement of the CPT-violating parameters Delta_amu for neutral kaons in the contest of the Standard Model Extension framework. The parameters measured in the reference frame of the fixed stars are: Delta_ao = (-6.0 +- 7.7_{stat} +- 3.1_{syst}) x 10^{-18} GeV Delta_ax = ( 0.9 +- 1.5_{stat} +- 0.6_{syst}) x 10^{-18} GeV Delta_ay = (-2.0 +- 1.5_{stat} +- 0.5_{syst}) x 10^{-18} GeV Delta_az = ( 3.1 +- 1.7_{stat} +- 0.5_{syst}) x 10^{-18} GeV These are presently the most precise measurements in the quark sector of the Standard Model Extension. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.6818v2-abstract-full').style.display = 'none'; document.getElementById('1312.6818v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 6 figures, added few typo corrections</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B 730 (2014) 89-94 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1306.5740">arXiv:1306.5740</a> <span> [<a href="https://arxiv.org/pdf/1306.5740">pdf</a>, <a href="https://arxiv.org/format/1306.5740">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Recent results on hadron physics at KLOE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%2C+L+C">L. Caldeira Balkest</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a> , et al. (49 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1306.5740v1-abstract-short" style="display: inline;"> One of the basic motivations of the KLOE and KLOE-2 collaborations is the test of fundamental symmetries and the search for phenomena beyond the Standard Model via the hadronic and leptonic decays of ground-state mesons and via their production in the fusion of virtual gamma quanta exchanged between colliding electrons and positrons. This contribution includes brief description of results of recen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.5740v1-abstract-full').style.display = 'inline'; document.getElementById('1306.5740v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1306.5740v1-abstract-full" style="display: none;"> One of the basic motivations of the KLOE and KLOE-2 collaborations is the test of fundamental symmetries and the search for phenomena beyond the Standard Model via the hadronic and leptonic decays of ground-state mesons and via their production in the fusion of virtual gamma quanta exchanged between colliding electrons and positrons. This contribution includes brief description of results of recent analysis of the KLOE data aimed at (i) the search for the dark matter boson, (ii) determination of the hadronic and light-by-light contributions to the g-2 muon anomaly and (iii) tests of QCD anomalies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.5740v1-abstract-full').style.display = 'none'; document.getElementById('1306.5740v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, Proceedings of the 48th Rencontres de Moriond "QCD and High Energy Interactions", La Thuile, Italy, March 9-16, 2013</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1301.7623">arXiv:1301.7623</a> <span> [<a href="https://arxiv.org/pdf/1301.7623">pdf</a>, <a href="https://arxiv.org/ps/1301.7623">ps</a>, <a href="https://arxiv.org/format/1301.7623">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2013.05.008">10.1016/j.physletb.2013.05.008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A new limit on the CP violating decay KS -> 3pi0 with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a> , et al. (48 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1301.7623v2-abstract-short" style="display: inline;"> We have carried out a new direct search for the CP violating decay KS -> 3pi0 with 1.7 fb^-1 of e+e- collisions collected by the KLOE detector at the phi-factory DAFNE. We have searched for this decay in a sample of about 5.9 x 10^8 KS KL events tagging the KS by means of the KL interaction in the calorimeter and requiring six prompt photons. With respect to our previous search, the analysis has b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.7623v2-abstract-full').style.display = 'inline'; document.getElementById('1301.7623v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1301.7623v2-abstract-full" style="display: none;"> We have carried out a new direct search for the CP violating decay KS -> 3pi0 with 1.7 fb^-1 of e+e- collisions collected by the KLOE detector at the phi-factory DAFNE. We have searched for this decay in a sample of about 5.9 x 10^8 KS KL events tagging the KS by means of the KL interaction in the calorimeter and requiring six prompt photons. With respect to our previous search, the analysis has been improved by increasing of a factor four the tagged sample and by a more effective background rejection of fake KS tags and spurious clusters. We find no candidates in data and simulated background samples, while we expect 0.12 standard model events. Normalizing to the number of KS -> 2pi0 events in the same sample, we set the upper limit on BR(KS -> 3pi0 < 2.6 x 10^-8 at 90% C.L., five times lower than the previous limit. We also set the upper limit on the eta_000 parameter, |eta_000 | < 0.0088 at 90% C.L., improving by a factor two the latest direct measurement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.7623v2-abstract-full').style.display = 'none'; document.getElementById('1301.7623v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted for publication in Physics Letters B (15 pages, 13 figures)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 723 (2013), pp. 54-60 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1212.4524">arXiv:1212.4524</a> <span> [<a href="https://arxiv.org/pdf/1212.4524">pdf</a>, <a href="https://arxiv.org/ps/1212.4524">ps</a>, <a href="https://arxiv.org/format/1212.4524">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2013.02.029">10.1016/j.physletb.2013.02.029 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision measurement of $蟽(e^+e^-\rightarrow蟺^+蟺^-纬)/蟽(e^+e^-\rightarrow 渭^+渭^-纬)$ and determination of the $蟺^+蟺^-$ contribution to the muon anomaly with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=KLOE"> KLOE</a>, <a href="/search/hep-ex?searchtype=author&query=Collaborations%2C+K">KLOE-2 Collaborations</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%27%2C+E">E. Dane'</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a> , et al. (52 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1212.4524v2-abstract-short" style="display: inline;"> We have measured the ratio $蟽(e^+e^-\rightarrow蟺^+蟺^-纬)/蟽(e^+e^-\rightarrow 渭^+渭^-纬)$, with the KLOE detector at DA$桅$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $蟽(e^+e^-\rightarrow蟺^+蟺^-)$. From the cross section we determine the pion form factor $|F_蟺|^2$ and the two-pion contribution to the muon anomaly $a_渭$ for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1212.4524v2-abstract-full').style.display = 'inline'; document.getElementById('1212.4524v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1212.4524v2-abstract-full" style="display: none;"> We have measured the ratio $蟽(e^+e^-\rightarrow蟺^+蟺^-纬)/蟽(e^+e^-\rightarrow 渭^+渭^-纬)$, with the KLOE detector at DA$桅$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $蟽(e^+e^-\rightarrow蟺^+蟺^-)$. From the cross section we determine the pion form factor $|F_蟺|^2$ and the two-pion contribution to the muon anomaly $a_渭$ for $0.592<M_{蟺蟺}<0.975$ GeV, $螖^{蟺蟺} a_渭$= $({\rm 385.1\pm1.1_{stat}\pm2.7_{sys+theo}})\times10^{-10}$. This result confirms the current discrepancy between the Standard Model calculation and the experimental measurement of the muon anomaly. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1212.4524v2-abstract-full').style.display = 'none'; document.getElementById('1212.4524v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 February, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 December, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 8 figures, minor text corrections, one table added, version to appear on Physics Letters B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1211.1845">arXiv:1211.1845</a> <span> [<a href="https://arxiv.org/pdf/1211.1845">pdf</a>, <a href="https://arxiv.org/ps/1211.1845">ps</a>, <a href="https://arxiv.org/format/1211.1845">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2013)119">10.1007/JHEP01(2013)119 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of 畏 meson production in 纬纬 interactions and 螕(畏-->纬纬) with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestaahl%2C+L+C">L. Caldeira Balkestaahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a> , et al. (47 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1211.1845v2-abstract-short" style="display: inline;"> We present a measurement of 畏 meson production in photon-photon interactions produced by electron-positron beams colliding with \sqrt{s}=1 GeV. The measurement is done with the KLOE detector at the 蠁-factory DA桅NE with an integrated luminosity of 0.24 fb^{-1}. The e^+e^- --> e^+e^-畏 cross section is measured without detecting the outgoing electron and positron, selecting the decays 畏-->蟺^+蟺^-蟺^0 a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.1845v2-abstract-full').style.display = 'inline'; document.getElementById('1211.1845v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1211.1845v2-abstract-full" style="display: none;"> We present a measurement of 畏 meson production in photon-photon interactions produced by electron-positron beams colliding with \sqrt{s}=1 GeV. The measurement is done with the KLOE detector at the 蠁-factory DA桅NE with an integrated luminosity of 0.24 fb^{-1}. The e^+e^- --> e^+e^-畏 cross section is measured without detecting the outgoing electron and positron, selecting the decays 畏-->蟺^+蟺^-蟺^0 and 畏-->蟺^0蟺^0蟺^0. The most relevant background is due to e^+e^- --> 畏纬 when the monochromatic photon escapes detection. The cross section for this process is measured as 蟽(e^+e^- -->畏纬) = (856 \pm 8_{stat} \pm 16_{syst}) pb. The combined result for the e^+e^- -->e^+e^-畏 cross section is 蟽(e^+e^- -->e^+e^-畏) = (32.72 \pm 1.27_{stat} \pm 0.70_{syst}) pb. From this we derive the partial width 螕(畏-->纬纬) = (520 \pm 20_{stat} \pm 13_{syst}) eV. This is in agreement with the world average and is the most precise measurement to date. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.1845v2-abstract-full').style.display = 'none'; document.getElementById('1211.1845v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 December, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Version accepted by JHEP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1210.3927">arXiv:1210.3927</a> <span> [<a href="https://arxiv.org/pdf/1210.3927">pdf</a>, <a href="https://arxiv.org/ps/1210.3927">ps</a>, <a href="https://arxiv.org/format/1210.3927">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2013.01.067">10.1016/j.physletb.2013.01.067 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Limit on the production of a light vector gauge boson in phi meson decays with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestaahl%2C+L+C">L. Caldeira Balkestaahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a> , et al. (47 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1210.3927v2-abstract-short" style="display: inline;"> We present a new limit on the production of a light dark-force mediator with the KLOE detector at DAPHNE. This boson, called U, has been searched for in the decay phi --> eta U, U --> e+ e-, analyzing the decay eta --> pi0 pi0 pi0 in a data sample of 1.7 fb-1. No structures are observed in the e+e- invariant mass distribution over the background. This search is combined with a previous result obta… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.3927v2-abstract-full').style.display = 'inline'; document.getElementById('1210.3927v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1210.3927v2-abstract-full" style="display: none;"> We present a new limit on the production of a light dark-force mediator with the KLOE detector at DAPHNE. This boson, called U, has been searched for in the decay phi --> eta U, U --> e+ e-, analyzing the decay eta --> pi0 pi0 pi0 in a data sample of 1.7 fb-1. No structures are observed in the e+e- invariant mass distribution over the background. This search is combined with a previous result obtained from the decay eta --> pi+ pi- pi0, increasing the sensitivity. We set an upper limit at 90% C.L. on the ratio between the U boson coupling constant and the fine structure constant of alpha'/alpha < 1.7x10^-5 for 30<M_U<400 MeV and alpha'/alpha < 8x10^-6 for the sub-region 50<M_U<210 MeV. This result assumes the Vector Meson Dominance expectations for the phietagamma^* transition form factor. The dependence of this limit on the transition form factor has also been studied. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.3927v2-abstract-full').style.display = 'none'; document.getElementById('1210.3927v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 October, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 7 figures, updated PLB version</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1209.4611">arXiv:1209.4611</a> <span> [<a href="https://arxiv.org/pdf/1209.4611">pdf</a>, <a href="https://arxiv.org/ps/1209.4611">ps</a>, <a href="https://arxiv.org/format/1209.4611">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2012.11.032">10.1016/j.physletb.2012.11.032 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of 螕(畏-> 蟺^+蟺^-纬)/螕(畏-> 蟺^+蟺^-蟺^0) with the KLOE Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%2C+L+C">L. Caldeira Balkest</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Micco%2C+B">B. Di Micco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a> , et al. (49 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1209.4611v2-abstract-short" style="display: inline;"> The ratio R_畏=螕(畏-> 蟺^+蟺^-纬)/螕(畏-> 蟺^+蟺^-蟺^0) has been measured by analyzing 22 million 蠁\to 畏纬decays collected by the KLOE experiment at DA\PhiNE, corresponding to an integrated luminosity of 558 pb^{-1}. The 畏\to 蟺^+蟺^-纬proceeds both via the 蟻resonant contribution, and possibly a non-resonant direct term, connected to the box anomaly. Our result, R_畏= 0.1856\pm 0.0005_{stat} \pm 0.0028_{syst}, p… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.4611v2-abstract-full').style.display = 'inline'; document.getElementById('1209.4611v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1209.4611v2-abstract-full" style="display: none;"> The ratio R_畏=螕(畏-> 蟺^+蟺^-纬)/螕(畏-> 蟺^+蟺^-蟺^0) has been measured by analyzing 22 million 蠁\to 畏纬decays collected by the KLOE experiment at DA\PhiNE, corresponding to an integrated luminosity of 558 pb^{-1}. The 畏\to 蟺^+蟺^-纬proceeds both via the 蟻resonant contribution, and possibly a non-resonant direct term, connected to the box anomaly. Our result, R_畏= 0.1856\pm 0.0005_{stat} \pm 0.0028_{syst}, points out a sizable contribution of the direct term to the total width. The di-pion invariant mass for the 畏-> 蟺^+蟺^-纬decay could be described in a model-independent approach in terms of a single free parameter, 伪. The determined value of the parameter 伪is 伪= (1.32 \pm 0.08_{stat} +0.10/-0.09_{syst}\pm 0.02_{theo}) GeV^{-2} <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.4611v2-abstract-full').style.display = 'none'; document.getElementById('1209.4611v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 September, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Paper in press, accepted by PLB</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.5733">arXiv:1107.5733</a> <span> [<a href="https://arxiv.org/pdf/1107.5733">pdf</a>, <a href="https://arxiv.org/ps/1107.5733">ps</a>, <a href="https://arxiv.org/format/1107.5733">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of $螕(畏\to 蟺^+蟺^-纬)/螕(畏\to 蟺^+蟺^-蟺^0)$ with KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+KLOE+Collaboration"> The KLOE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz%2C+I">I. Balwierz</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwiski%2C+E">E. Czerwiski</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Micco%2C+B">B. Di Micco</a> , et al. (65 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.5733v1-abstract-short" style="display: inline;"> We report the measurement of the ratio $螕(畏\to 蟺^+蟺^-纬)/螕(畏\to 蟺^+蟺^-蟺^0)$ analyzing a large sample of $蠁\to 畏纬$ decays recorded with the KLOE experiment at the DA$桅$NE $e^+ e^-$ collider, corresponding to an integrated luminosity of 558 pb$^{-1}$. The $畏\to 蟺^+蟺^-纬$ process is supposed to proceed both via a resonant contribution, mediated by the $蟻$ meson, and a non resonant direct term, connecte… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.5733v1-abstract-full').style.display = 'inline'; document.getElementById('1107.5733v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.5733v1-abstract-full" style="display: none;"> We report the measurement of the ratio $螕(畏\to 蟺^+蟺^-纬)/螕(畏\to 蟺^+蟺^-蟺^0)$ analyzing a large sample of $蠁\to 畏纬$ decays recorded with the KLOE experiment at the DA$桅$NE $e^+ e^-$ collider, corresponding to an integrated luminosity of 558 pb$^{-1}$. The $畏\to 蟺^+蟺^-纬$ process is supposed to proceed both via a resonant contribution, mediated by the $蟻$ meson, and a non resonant direct term, connected to the box anomaly. The presence of the direct term affects the partial width value. Our result $R_畏=螕(畏\to 蟺^+ 蟺^- 纬)/螕(畏\to 蟺^+ 蟺^- 蟺^0)= 0.1838\pm 0.0005_{stat} \pm 0.0030_{syst}$ is in agreement with a recent CLEO measurement, which differs by more 3 $蟽$ from the average of previous results. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.5733v1-abstract-full').style.display = 'none'; document.getElementById('1107.5733v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.3782">arXiv:1107.3782</a> <span> [<a href="https://arxiv.org/pdf/1107.3782">pdf</a>, <a href="https://arxiv.org/ps/1107.3782">ps</a>, <a href="https://arxiv.org/format/1107.3782">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> $纬纬$ physics with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+T+K">The KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz%2C+I">I. Balwierz</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Bulychjev%2C+S+A">S. A. Bulychjev</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a> , et al. (45 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.3782v1-abstract-short" style="display: inline;"> The processes $e^+e^-\to e^+e^-X$, with $X$ being either the $畏$ meson or $蟺^0蟺^0$, are studied at DA$桅$NE, with $e^+e^-$ beams colliding at $\sqrt{s}\simeq1$ GeV, below the $蠁$ resonance peak. The data sample is from an integrated luminosity of 240 pb$^{-1}$, collected by the KLOE experiment without tagging of the outgoing $e^+e^-$. Preliminary results are presented on the observation of the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.3782v1-abstract-full').style.display = 'inline'; document.getElementById('1107.3782v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.3782v1-abstract-full" style="display: none;"> The processes $e^+e^-\to e^+e^-X$, with $X$ being either the $畏$ meson or $蟺^0蟺^0$, are studied at DA$桅$NE, with $e^+e^-$ beams colliding at $\sqrt{s}\simeq1$ GeV, below the $蠁$ resonance peak. The data sample is from an integrated luminosity of 240 pb$^{-1}$, collected by the KLOE experiment without tagging of the outgoing $e^+e^-$. Preliminary results are presented on the observation of the $纬纬\to畏$ process, with both $畏\to蟺^+蟺^-蟺^0$ and $畏\to蟺^0蟺^0蟺^0$ channels, and the evidence for $纬纬\to蟺^0蟺^0$ production at low $蟺^0蟺^0$ invariant mass. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.3782v1-abstract-full').style.display = 'none'; document.getElementById('1107.3782v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contributed paper to the Lepton-Photon 2011 Conference</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.2531">arXiv:1107.2531</a> <span> [<a href="https://arxiv.org/pdf/1107.2531">pdf</a>, <a href="https://arxiv.org/ps/1107.2531">ps</a>, <a href="https://arxiv.org/format/1107.2531">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/335/1/012067">10.1088/1742-6596/335/1/012067 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> U boson searches at KLOE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz%2C+I">I. Balwierz</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Bulychjev%2C+S+A">S. A. Bulychjev</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%27%2C+E">E. Dane'</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a> , et al. (44 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.2531v1-abstract-short" style="display: inline;"> The existence of a secluded gauge sector could explain several puzzling astrophysical observations. This hypothesis can be tested at low energy e+e- colliders such as DAPHNE. Preliminary results obtained with KLOE data and perpectives for the KLOE-2 run, where a larger data sample is expected, are discussed. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.2531v1-abstract-full" style="display: none;"> The existence of a secluded gauge sector could explain several puzzling astrophysical observations. This hypothesis can be tested at low energy e+e- colliders such as DAPHNE. Preliminary results obtained with KLOE data and perpectives for the KLOE-2 run, where a larger data sample is expected, are discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.2531v1-abstract-full').style.display = 'none'; document.getElementById('1107.2531v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1105.6067">arXiv:1105.6067</a> <span> [<a href="https://arxiv.org/pdf/1105.6067">pdf</a>, <a href="https://arxiv.org/ps/1105.6067">ps</a>, <a href="https://arxiv.org/format/1105.6067">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2011.07.033">10.1016/j.physletb.2011.07.033 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the rare eta->e+e-e+e- decay with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+KLOE+Collaboration"> The KLOE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz%2C+I">I. Balwierz</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=DeLucia%2C+E">E. DeLucia</a>, <a href="/search/hep-ex?searchtype=author&query=DeSantis%2C+A">A. DeSantis</a>, <a href="/search/hep-ex?searchtype=author&query=DeSimone%2C+P">P. DeSimone</a>, <a href="/search/hep-ex?searchtype=author&query=DeZorzi%2C+G">G. DeZorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/hep-ex?searchtype=author&query=DiDomenico%2C+A">A. DiDomenico</a>, <a href="/search/hep-ex?searchtype=author&query=DiDonato%2C+C">C. DiDonato</a>, <a href="/search/hep-ex?searchtype=author&query=DiMicco%2C+B">B. DiMicco</a> , et al. (65 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1105.6067v3-abstract-short" style="display: inline;"> We report the first observation of the rare eta->e+e-e+e- decay based on 1.7 fb^{-1} collected by the KLOE experiment at the DAFNE phi-factory. The selection of the e+e-e+e- final state is fully inclusive of radiation. We have identified 362 +- 29 events resulting in a branching ratio of (2.4 +- 0.2_stat+bckg +- 0.1_syst) x 10^{-5}. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1105.6067v3-abstract-full" style="display: none;"> We report the first observation of the rare eta->e+e-e+e- decay based on 1.7 fb^{-1} collected by the KLOE experiment at the DAFNE phi-factory. The selection of the e+e-e+e- final state is fully inclusive of radiation. We have identified 362 +- 29 events resulting in a branching ratio of (2.4 +- 0.2_stat+bckg +- 0.1_syst) x 10^{-5}. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1105.6067v3-abstract-full').style.display = 'none'; document.getElementById('1105.6067v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 October, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 May, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 3 figures, to be published on PLB</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett. B702 (2011) 324-328 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1007.5219">arXiv:1007.5219</a> <span> [<a href="https://arxiv.org/pdf/1007.5219">pdf</a>, <a href="https://arxiv.org/ps/1007.5219">ps</a>, <a href="https://arxiv.org/format/1007.5219">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Proposal for taking data with the KLOE-2 detector at the DA$桅$NE collider upgraded in energy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Isidori%2C+G">G. Isidori</a>, <a href="/search/hep-ex?searchtype=author&query=Moricciani%2C+D">D. Moricciani</a>, <a href="/search/hep-ex?searchtype=author&query=Nguyen%2C+F">F. Nguyen</a>, <a href="/search/hep-ex?searchtype=author&query=Raimondi%2C+P">P. Raimondi</a>, <a href="/search/hep-ex?searchtype=author&query=Venanzoni%2C+G">G. Venanzoni</a>, <a href="/search/hep-ex?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini-Ferroli%2C+R">R. Baldini-Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Bellaveglia%2C+M">M. Bellaveglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Biagini%2C+M">M. Biagini</a>, <a href="/search/hep-ex?searchtype=author&query=Biscari%2C+C">C. Biscari</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Boni%2C+R">R. Boni</a>, <a href="/search/hep-ex?searchtype=author&query=Boscolo%2C+M">M. Boscolo</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Bulychjev%2C+S+A">S. A. Bulychjev</a>, <a href="/search/hep-ex?searchtype=author&query=Buonomo%2C+B">B. Buonomo</a> , et al. (97 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1007.5219v1-abstract-short" style="display: inline;"> This document reviews the physics program of the KLOE-2 detector at DA$桅$NE upgraded in energy and provides a simple solution to run the collider above the $蠁$-peak (up to 2, possibly 2.5 GeV). It is shown how a precise measurement of the multihadronic cross section in the energy region up to 2 (possibly 2.5) GeV would have a major impact on the tests of the Standard Model through a precise determ… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1007.5219v1-abstract-full').style.display = 'inline'; document.getElementById('1007.5219v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1007.5219v1-abstract-full" style="display: none;"> This document reviews the physics program of the KLOE-2 detector at DA$桅$NE upgraded in energy and provides a simple solution to run the collider above the $蠁$-peak (up to 2, possibly 2.5 GeV). It is shown how a precise measurement of the multihadronic cross section in the energy region up to 2 (possibly 2.5) GeV would have a major impact on the tests of the Standard Model through a precise determination of the anomalous magnetic moment of the muon and the effective fine-structure constant at the $M_Z$ scale. With a luminosity of about $10^{32}$cm$^{-2}$s$^{-1}$, DA$桅$NE upgraded in energy can perform a scan in the region from 1 to 2.5 GeV in one year by collecting an integrated luminosity of 20 pb$^{-1}$ (corresponding to a few days of data taking) for single point, assuming an energy step of 25 MeV. A few years of data taking in this region would provide important tests of QCD and effective theories by $纬纬$ physics with open thresholds for pseudo-scalar (like the $畏'$), scalar ($f_0,f'_0$, etc...) and axial-vector ($a_1$, etc...) mesons; vector-mesons spectroscopy and baryon form factors; tests of CVC and searches for exotics. In the final part of the document a technical solution for the energy upgrade of DA$桅$NE is proposed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1007.5219v1-abstract-full').style.display = 'none'; document.getElementById('1007.5219v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 July, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">19 pages, 8 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LNF-10/17(P) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1006.5313">arXiv:1006.5313</a> <span> [<a href="https://arxiv.org/pdf/1006.5313">pdf</a>, <a href="https://arxiv.org/ps/1006.5313">ps</a>, <a href="https://arxiv.org/format/1006.5313">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2011.04.055">10.1016/j.physletb.2011.04.055 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of sigma(e+ e- -> pi+ pi-) from threshold to 0.85 GeV^2 using Initial State Radiation with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=KLOE+Collaboration"> KLOE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Micco%2C+B">B. Di Micco</a>, <a href="/search/hep-ex?searchtype=author&query=Dreucci%2C+M">M. Dreucci</a>, <a href="/search/hep-ex?searchtype=author&query=Felici%2C+G">G. Felici</a>, <a href="/search/hep-ex?searchtype=author&query=Fiore%2C+S">S. Fiore</a> , et al. (23 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1006.5313v2-abstract-short" style="display: inline;"> We have measured the cross section of the radiative process e+e- -> pi+pi-gamma with the KLOE detector at the Frascati phi-factory DAPHNE, from events taken at a CM energy W=1 GeV. Initial state radiation allows us to obtain the cross section for e+e- -> pi+pi-, the pion form factor |F_pi|^2 and the dipion contribution to the muon magnetic moment anomaly, Delta a_mu^{pipi} = (478.5+-2.0_{stat}+-5.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.5313v2-abstract-full').style.display = 'inline'; document.getElementById('1006.5313v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1006.5313v2-abstract-full" style="display: none;"> We have measured the cross section of the radiative process e+e- -> pi+pi-gamma with the KLOE detector at the Frascati phi-factory DAPHNE, from events taken at a CM energy W=1 GeV. Initial state radiation allows us to obtain the cross section for e+e- -> pi+pi-, the pion form factor |F_pi|^2 and the dipion contribution to the muon magnetic moment anomaly, Delta a_mu^{pipi} = (478.5+-2.0_{stat}+-5.0_{syst}+-4.5_{th}) x 10^{-10} in the range 0.1 < M_{pipi}^2 < 0.85 GeV^2, where the theoretical error includes a SU(3) ChPT estimate of the uncertainty on photon radiation from the final pions. The discrepancy between the Standard Model evaluation of a_mu and the value measured by the Muon g-2 collaboration at BNL is confirmed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.5313v2-abstract-full').style.display = 'none'; document.getElementById('1006.5313v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 May, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 June, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 11 figures, revised treatment of FSR uncertainty, version to appear on Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B700:102-110,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1004.1319">arXiv:1004.1319</a> <span> [<a href="https://arxiv.org/pdf/1004.1319">pdf</a>, <a href="https://arxiv.org/ps/1004.1319">ps</a>, <a href="https://arxiv.org/format/1004.1319">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2010.09.022">10.1016/j.physletb.2010.09.022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $畏\to 3蟺^{0}$ slope parameter $伪$ with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Micco%2C+B">B. Di Micco</a>, <a href="/search/hep-ex?searchtype=author&query=Dreucci%2C+M">M. Dreucci</a> , et al. (34 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1004.1319v1-abstract-short" style="display: inline;"> We present a measurement of the slope parameter $伪$ for the $畏\to 3蟺^{0}$ decay, with the KLOE experiment at the DA$桅$NE $蠁$-factory, based on a background free sample of $\sim$ 17 millions $畏$ mesons produced in $蠁$ radiative decays. By fitting the event density in the Dalitz plot we determine $伪= -0.0301 \pm 0.0035\,stat\;_{-0.0035}^{+0.0022}\,syst\,$. The result is in agreement with recent meas… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1004.1319v1-abstract-full').style.display = 'inline'; document.getElementById('1004.1319v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1004.1319v1-abstract-full" style="display: none;"> We present a measurement of the slope parameter $伪$ for the $畏\to 3蟺^{0}$ decay, with the KLOE experiment at the DA$桅$NE $蠁$-factory, based on a background free sample of $\sim$ 17 millions $畏$ mesons produced in $蠁$ radiative decays. By fitting the event density in the Dalitz plot we determine $伪= -0.0301 \pm 0.0035\,stat\;_{-0.0035}^{+0.0022}\,syst\,$. The result is in agreement with recent measurements from hadro- and photo-production experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1004.1319v1-abstract-full').style.display = 'none'; document.getElementById('1004.1319v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 April, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 11 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B694:16-21,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1003.3868">arXiv:1003.3868</a> <span> [<a href="https://arxiv.org/pdf/1003.3868">pdf</a>, <a href="https://arxiv.org/ps/1003.3868">ps</a>, <a href="https://arxiv.org/format/1003.3868">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-010-1351-1">10.1140/epjc/s10052-010-1351-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Physics with the KLOE-2 experiment at the upgraded DA$蠁$NE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Amelino-Camelia%2C+G">G. Amelino-Camelia</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bernabeu%2C+J">J. Bernabeu</a>, <a href="/search/hep-ex?searchtype=author&query=Bertlmann%2C+R+A">R. A. Bertlmann</a>, <a href="/search/hep-ex?searchtype=author&query=Boito%2C+D+R">D. R. Boito</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Bulychjev%2C+S+A">S. A. Bulychjev</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Czyz%2C+H">H. Czyz</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Ambrosio%2C+G">G. D'Ambrosio</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A9%2C+E">E. Dan茅</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a> , et al. (73 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1003.3868v3-abstract-short" style="display: inline;"> Investigation at a $蠁$--factory can shed light on several debated issues in particle physics. We discuss: i) recent theoretical development and experimental progress in kaon physics relevant for the Standard Model tests in the flavor sector, ii) the sensitivity we can reach in probing CPT and Quantum Mechanics from time evolution of entangled kaon states, iii) the interest for improving on the pre… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1003.3868v3-abstract-full').style.display = 'inline'; document.getElementById('1003.3868v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1003.3868v3-abstract-full" style="display: none;"> Investigation at a $蠁$--factory can shed light on several debated issues in particle physics. We discuss: i) recent theoretical development and experimental progress in kaon physics relevant for the Standard Model tests in the flavor sector, ii) the sensitivity we can reach in probing CPT and Quantum Mechanics from time evolution of entangled kaon states, iii) the interest for improving on the present measurements of non-leptonic and radiative decays of kaons and eta/eta$^\prime$ mesons, iv) the contribution to understand the nature of light scalar mesons, and v) the opportunity to search for narrow di-lepton resonances suggested by recent models proposing a hidden dark-matter sector. We also report on the $e^+ e^-$ physics in the continuum with the measurements of (multi)hadronic cross sections and the study of gamma gamma processes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1003.3868v3-abstract-full').style.display = 'none'; document.getElementById('1003.3868v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 May, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 March, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">60 pages, 41 figures; added affiliation for one of the authors; added reference to section 6</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CAFPE-141/10, UG-FT-271/10 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur.Phys.J.C68:619-681,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1002.2572">arXiv:1002.2572</a> <span> [<a href="https://arxiv.org/pdf/1002.2572">pdf</a>, <a href="https://arxiv.org/ps/1002.2572">ps</a>, <a href="https://arxiv.org/format/1002.2572">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Technical Design Report of the Inner Tracker for the KLOE-2 experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Bulychjev%2C+S+A">S. A. Bulychjev</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a> , et al. (59 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1002.2572v1-abstract-short" style="display: inline;"> The technical design report of the Inner Tracker for the KLOE-2 experiment is presented </span> <span class="abstract-full has-text-grey-dark mathjax" id="1002.2572v1-abstract-full" style="display: none;"> The technical design report of the Inner Tracker for the KLOE-2 experiment is presented <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1002.2572v1-abstract-full').style.display = 'none'; document.getElementById('1002.2572v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 February, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">77 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LNF-10/3(P) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0904.2539">arXiv:0904.2539</a> <span> [<a href="https://arxiv.org/pdf/0904.2539">pdf</a>, <a href="https://arxiv.org/ps/0904.2539">ps</a>, <a href="https://arxiv.org/format/0904.2539">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2009.09.022">10.1016/j.physletb.2009.09.022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the a_0(980) meson via the radiative decay phi->eta pi^0 gamma with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=KLOE+Collaboration"> KLOE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+C">C. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Chi%2C+S">S. Chi</a>, <a href="/search/hep-ex?searchtype=author&query=Chiefari%2C+G">G. Chiefari</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Crucianelli%2C+F">F. Crucianelli</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a> , et al. (53 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0904.2539v2-abstract-short" style="display: inline;"> We have studied the phi->a_0(980) gamma process with the KLOE detector at the Frascati phi-factory DAPhNE by detecting the phi->eta pi^0 gamma decays in the final states with eta->gamma gamma and eta->pi^+ pi^- pi^0. We have measured the branching ratios for both final states: Br(phi->eta pi^0 gamma)=(7.01 +/- 0.10 +/- 0.20)x10^-5 and (7.12 +/- 0.13 +/- 0.22)x10^-5 respectively. We have also ext… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0904.2539v2-abstract-full').style.display = 'inline'; document.getElementById('0904.2539v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0904.2539v2-abstract-full" style="display: none;"> We have studied the phi->a_0(980) gamma process with the KLOE detector at the Frascati phi-factory DAPhNE by detecting the phi->eta pi^0 gamma decays in the final states with eta->gamma gamma and eta->pi^+ pi^- pi^0. We have measured the branching ratios for both final states: Br(phi->eta pi^0 gamma)=(7.01 +/- 0.10 +/- 0.20)x10^-5 and (7.12 +/- 0.13 +/- 0.22)x10^-5 respectively. We have also extracted the a_0(980) mass and its couplings to eta pi^0, K^+ K^-, and to the phi meson from the fit of the eta pi^0 invariant mass distributions using different phenomenological models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0904.2539v2-abstract-full').style.display = 'none'; document.getElementById('0904.2539v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 April, 2009; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 April, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 6 figures, submitted to Physics Letters B. Corrected typos in eq.9</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B681:5-13,2009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0903.4115">arXiv:0903.4115</a> <span> [<a href="https://arxiv.org/pdf/0903.4115">pdf</a>, <a href="https://arxiv.org/ps/0903.4115">ps</a>, <a href="https://arxiv.org/format/0903.4115">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2009.07.013">10.1016/j.physletb.2009.07.013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the decay phi -> K0 K0bar gamma with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=KLOE+Collaboration"> KLOE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Micco%2C+B">B. Di Micco</a> , et al. (32 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0903.4115v2-abstract-short" style="display: inline;"> We have searched for the decay phi -> K0 K0bar gamma, by detecting K_s pairs plus a photon and with the K_s-mesons decaying to pi^+ pi^-, in a sample of about 1.5x 10^9 phi-decays collected by the KLOE experiment at DAFNE. The reaction proceeds through the intermediate states f_0(980) gamma, a_0(980) gamma. We find five events with 3.2 events expected from background processes. We obtain the upp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0903.4115v2-abstract-full').style.display = 'inline'; document.getElementById('0903.4115v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0903.4115v2-abstract-full" style="display: none;"> We have searched for the decay phi -> K0 K0bar gamma, by detecting K_s pairs plus a photon and with the K_s-mesons decaying to pi^+ pi^-, in a sample of about 1.5x 10^9 phi-decays collected by the KLOE experiment at DAFNE. The reaction proceeds through the intermediate states f_0(980) gamma, a_0(980) gamma. We find five events with 3.2 events expected from background processes. We obtain the upper limit: BR (phi -> K0 K0bar gamma) < 1.9x10^-8 at 90% C.L. . <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0903.4115v2-abstract-full').style.display = 'none'; document.getElementById('0903.4115v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 June, 2009; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 March, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 8 figures, submitted to Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B679:10-14,2009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0812.4830">arXiv:0812.4830</a> <span> [<a href="https://arxiv.org/pdf/0812.4830">pdf</a>, <a href="https://arxiv.org/ps/0812.4830">ps</a>, <a href="https://arxiv.org/format/0812.4830">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2009.04.013">10.1016/j.physletb.2009.04.013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the branching ratio and search for a CP violating asymmetry in the eta -> pi+pi-e+e-(gamma) decay at KLOE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=KLOE+Collaboration"> KLOE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Crucianelli%2C+F">F. Crucianelli</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a> , et al. (35 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0812.4830v2-abstract-short" style="display: inline;"> We have studied the eta->pi+pi-e+e-(gamma) decay using about 1.7 fb^-1 collected by the KLOE experiment at the DAFNE phi-factory. This corresponds to about 72 millions eta mesons produced in phi radiative decays. We have measured the branching ratio, inclusive of radiative effects, with 4% accuracy: BR(eta->pi+pi-e+e-(gamma)) = (26.8 +/- 0.9_Stat. +/- 0.7_Syst.) x 10^-5. We have obtained the fir… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0812.4830v2-abstract-full').style.display = 'inline'; document.getElementById('0812.4830v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0812.4830v2-abstract-full" style="display: none;"> We have studied the eta->pi+pi-e+e-(gamma) decay using about 1.7 fb^-1 collected by the KLOE experiment at the DAFNE phi-factory. This corresponds to about 72 millions eta mesons produced in phi radiative decays. We have measured the branching ratio, inclusive of radiative effects, with 4% accuracy: BR(eta->pi+pi-e+e-(gamma)) = (26.8 +/- 0.9_Stat. +/- 0.7_Syst.) x 10^-5. We have obtained the first measurement of the CP-odd pipi-ee decay planes angular asymmetry, A_phi = (-0.6 +/- 2.5_Stat. +/- 1.8_Syst.) x 10^-2. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0812.4830v2-abstract-full').style.display = 'none'; document.getElementById('0812.4830v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 April, 2009; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 December, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 Pages, 6 figures, accepted for publication in Physics Letter B. Minor changes after journal review.</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B675:283-288,2009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0811.1007">arXiv:0811.1007</a> <span> [<a href="https://arxiv.org/pdf/0811.1007">pdf</a>, <a href="https://arxiv.org/ps/0811.1007">ps</a>, <a href="https://arxiv.org/format/0811.1007">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2009.01.037">10.1016/j.physletb.2009.01.037 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the K_S -> e+e- decay with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+KLOE+Collaboration"> The KLOE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capriotti%2C+D">D. Capriotti</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Crucianelli%2C+F">F. Crucianelli</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Denig%2C+A">A. Denig</a> , et al. (41 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0811.1007v3-abstract-short" style="display: inline;"> We present the result of a direct search for the decay K_S -> e+e-, obtained with a sample of e+e- -> phi -> K_S K_L events produced at DAFNE, the Frascati phi-factory, for an integrated luminosity of 1.9 fb^-1. The search has been performed using a pure K_S beam tagged by the simultaneous detection of a K_L interaction in the calorimeter. Background rejection has been optimized by using both ki… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0811.1007v3-abstract-full').style.display = 'inline'; document.getElementById('0811.1007v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0811.1007v3-abstract-full" style="display: none;"> We present the result of a direct search for the decay K_S -> e+e-, obtained with a sample of e+e- -> phi -> K_S K_L events produced at DAFNE, the Frascati phi-factory, for an integrated luminosity of 1.9 fb^-1. The search has been performed using a pure K_S beam tagged by the simultaneous detection of a K_L interaction in the calorimeter. Background rejection has been optimized by using both kinematic and particle identification cuts. We find BR(K_S -> e+e-) < 9x10^-9 at 90% CL, which improves by an order of magnitude on the previous best limit. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0811.1007v3-abstract-full').style.display = 'none'; document.getElementById('0811.1007v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 January, 2009; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 November, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 11 figures, submitted to Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B672:203-208,2009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0807.4909">arXiv:0807.4909</a> <span> [<a href="https://arxiv.org/pdf/0807.4909">pdf</a>, <a href="https://arxiv.org/ps/0807.4909">ps</a>, <a href="https://arxiv.org/format/0807.4909">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2008.09.056">10.1016/j.physletb.2008.09.056 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the process e+e- -> omega pi0 in the phi-meson mass region with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+KLOE+Collaboration"> The KLOE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Crucianelli%2C+F">F. Crucianelli</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a>, <a href="/search/hep-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0807.4909v2-abstract-short" style="display: inline;"> We have studied the e+e- -> omegapi0 cross section in the sqrt(s) interval 1000-1030 MeV using the pi+pi-pi0pi0 and pi0pi0gamma final states with a sample of ~600 pb^-1 collected with the KLOE detector at DAFNE. By fitting the observed interference pattern around M_phi for both final states, we extract the ratio of the decay widths Gamma(omega->pi0gamma)/Gamma(omega->pi+pi-pi0) = 0.0897 +- 0.001… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0807.4909v2-abstract-full').style.display = 'inline'; document.getElementById('0807.4909v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0807.4909v2-abstract-full" style="display: none;"> We have studied the e+e- -> omegapi0 cross section in the sqrt(s) interval 1000-1030 MeV using the pi+pi-pi0pi0 and pi0pi0gamma final states with a sample of ~600 pb^-1 collected with the KLOE detector at DAFNE. By fitting the observed interference pattern around M_phi for both final states, we extract the ratio of the decay widths Gamma(omega->pi0gamma)/Gamma(omega->pi+pi-pi0) = 0.0897 +- 0.0016 and derive the branching fractions BR(omega -> pi+pi-pi0)= (90.24 +- 0.19)%, BR(omega -> pi0gamma) = (8.09 +- 0.14)%. The parameters describing the e+e- -> omegapi0 reaction around M_蠁are also used to extract the branching fraction for the OZI and G-parity violating phi -> omegapi0 decay: BR(phi->omegapi0) = (4.4 +- 0.6)x10^-5. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0807.4909v2-abstract-full').style.display = 'none'; document.getElementById('0807.4909v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 September, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 July, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 Pages, 4 figures, submitted to Physics Letter B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B669:223-228,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0804.4577">arXiv:0804.4577</a> <span> [<a href="https://arxiv.org/pdf/0804.4577">pdf</a>, <a href="https://arxiv.org/ps/0804.4577">ps</a>, <a href="https://arxiv.org/format/0804.4577">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2008.07.070">10.1016/j.physletb.2008.07.070 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the absolute branching ratio of the K+ -> pi+ pi0 (gamma) decay with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+C">C. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Cesario%2C+F">F. Cesario</a>, <a href="/search/hep-ex?searchtype=author&query=Chi%2C+S">S. Chi</a>, <a href="/search/hep-ex?searchtype=author&query=Chiefari%2C+G">G. Chiefari</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Crucianelli%2C+F">F. Crucianelli</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a> , et al. (53 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0804.4577v2-abstract-short" style="display: inline;"> We have measured the absolute branching ratio of the K+ -> pi+ pi0 (gamma) decay, using about 20 million tagged K+ mesons collected with the KLOE detector at DAFNE, the Frascati phi-factory. Signal counts are obtained from the fit of the distribution of the momentum of the charged decay particle in the kaon rest frame. The result, inclusive of final-state radiation, is BR(K+ -> pi+ pi0 (gamma))=… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0804.4577v2-abstract-full').style.display = 'inline'; document.getElementById('0804.4577v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0804.4577v2-abstract-full" style="display: none;"> We have measured the absolute branching ratio of the K+ -> pi+ pi0 (gamma) decay, using about 20 million tagged K+ mesons collected with the KLOE detector at DAFNE, the Frascati phi-factory. Signal counts are obtained from the fit of the distribution of the momentum of the charged decay particle in the kaon rest frame. The result, inclusive of final-state radiation, is BR(K+ -> pi+ pi0 (gamma))=0.2065+/-0.0005_{stat}+/- 0.0008_{syst}. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0804.4577v2-abstract-full').style.display = 'none'; document.getElementById('0804.4577v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 April, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 2 figures; changed content</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B666:305-310,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0802.3009">arXiv:0802.3009</a> <span> [<a href="https://arxiv.org/pdf/0802.3009">pdf</a>, <a href="https://arxiv.org/ps/0802.3009">ps</a>, <a href="https://arxiv.org/format/0802.3009">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1126-6708/2008/04/059">10.1088/1126-6708/2008/04/059 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Vus and lepton universality from kaon decays with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+C">C. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Caloi%2C+R">R. Caloi</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Cesario%2C+F">F. Cesario</a>, <a href="/search/hep-ex?searchtype=author&query=Chi%2C+S">S. Chi</a>, <a href="/search/hep-ex?searchtype=author&query=Chiefari%2C+G">G. Chiefari</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Crucianelli%2C+F">F. Crucianelli</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a> , et al. (54 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0802.3009v1-abstract-short" style="display: inline;"> KLOE has measured most decay branching ratios of Ks, Kl and K+/- mesons. It has also measured the Kl and the K+- lifetime and determined the shape of the form factors involved in kaon semileptonic decays. We present in the following a description of the above measurements and a well organized compendium of all of our data, with particular attention to correlations. These data provide the basis f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0802.3009v1-abstract-full').style.display = 'inline'; document.getElementById('0802.3009v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0802.3009v1-abstract-full" style="display: none;"> KLOE has measured most decay branching ratios of Ks, Kl and K+/- mesons. It has also measured the Kl and the K+- lifetime and determined the shape of the form factors involved in kaon semileptonic decays. We present in the following a description of the above measurements and a well organized compendium of all of our data, with particular attention to correlations. These data provide the basis for the determination of the CKM parameter Vus and a test of the unitarity of the quark flavor mixing matrix. We also test lepton universality and place bounds on new physics using measurements of Vus from Kl2 and Kl3 decays. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0802.3009v1-abstract-full').style.display = 'none'; document.getElementById('0802.3009v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 February, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">23 pages, 12 figures. Submitted to JHEP</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 0804:059,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0801.2642">arXiv:0801.2642</a> <span> [<a href="https://arxiv.org/pdf/0801.2642">pdf</a>, <a href="https://arxiv.org/ps/0801.2642">ps</a>, <a href="https://arxiv.org/format/0801.2642">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1126-6708/2008/05/006">10.1088/1126-6708/2008/05/006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Determination of $畏\to蟺^+蟺^-蟺^0$ Dalitz plot slopes and asymmetries with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+KLOE+collaboration"> The KLOE collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+C">C. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Caloi%2C+R">R. Caloi</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Cesario%2C+F">F. Cesario</a>, <a href="/search/hep-ex?searchtype=author&query=Chi%2C+S">S. Chi</a>, <a href="/search/hep-ex?searchtype=author&query=Chiefari%2C+G">G. Chiefari</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Crucianelli%2C+F">F. Crucianelli</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a> , et al. (54 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0801.2642v2-abstract-short" style="display: inline;"> We have studied, with the KLOE detector at the DA$桅$NE $桅$-Factory, the dynamics of the decay $畏\to蟺^+蟺^-蟺^0$ using $畏$ mesons from the decay $蠁\to畏纬$ for an integrated luminosity ${\mathcal L}$ = 450 pb$^{-1}$. From a fit to the Dalitz plot density distribution we obtain a precise measurement of the slope parameters. An alternative parametrization relates the $蟺^+蟺^-蟺^0$ slopes to that for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0801.2642v2-abstract-full').style.display = 'inline'; document.getElementById('0801.2642v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0801.2642v2-abstract-full" style="display: none;"> We have studied, with the KLOE detector at the DA$桅$NE $桅$-Factory, the dynamics of the decay $畏\to蟺^+蟺^-蟺^0$ using $畏$ mesons from the decay $蠁\to畏纬$ for an integrated luminosity ${\mathcal L}$ = 450 pb$^{-1}$. From a fit to the Dalitz plot density distribution we obtain a precise measurement of the slope parameters. An alternative parametrization relates the $蟺^+蟺^-蟺^0$ slopes to that for $畏\to 3蟺^0$ showing the consistency of KLOE results for both channels. We also obtain the best confirmation of the $C$-invariance in the $畏\to蟺^+蟺^-蟺^0$ decay. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0801.2642v2-abstract-full').style.display = 'none'; document.getElementById('0801.2642v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 March, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 January, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 0805:006,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0712.1112">arXiv:0712.1112</a> <span> [<a href="https://arxiv.org/pdf/0712.1112">pdf</a>, <a href="https://arxiv.org/ps/0712.1112">ps</a>, <a href="https://arxiv.org/format/0712.1112">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1126-6708/2008/01/073">10.1088/1126-6708/2008/01/073 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the charged kaon lifetime with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+C">C. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Caloi%2C+R">R. Caloi</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Chi%2C+S">S. Chi</a>, <a href="/search/hep-ex?searchtype=author&query=Chiefari%2C+G">G. Chiefari</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a> , et al. (51 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0712.1112v2-abstract-short" style="display: inline;"> We have measured the charged kaon lifetime using a sample of 15 \times 10^6 tagged kaon decays. Charged kaons were produced in pairs at the DA\PhiNE 蠁-factory, e^+e^- \to 蠁\to K^+ K^-. The decay of a K^+ was tagged by the production of a K^- and viceversa. The lifetime was obtained, for both charges, from independent measurements of the decay time and decay lenght distributions. From fits to t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0712.1112v2-abstract-full').style.display = 'inline'; document.getElementById('0712.1112v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0712.1112v2-abstract-full" style="display: none;"> We have measured the charged kaon lifetime using a sample of 15 \times 10^6 tagged kaon decays. Charged kaons were produced in pairs at the DA\PhiNE 蠁-factory, e^+e^- \to 蠁\to K^+ K^-. The decay of a K^+ was tagged by the production of a K^- and viceversa. The lifetime was obtained, for both charges, from independent measurements of the decay time and decay lenght distributions. From fits to the four distributions we find 蟿= (12.347\pm0.030) ns. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0712.1112v2-abstract-full').style.display = 'none'; document.getElementById('0712.1112v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 January, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 December, 2007; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2007. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 14 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 0801:073,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0710.5892">arXiv:0710.5892</a> <span> [<a href="https://arxiv.org/pdf/0710.5892">pdf</a>, <a href="https://arxiv.org/ps/0710.5892">ps</a>, <a href="https://arxiv.org/format/0710.5892">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1126-6708/2007/12/073">10.1088/1126-6708/2007/12/073 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precise measurements of the eta and the neutral kaon meson masses with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+C">C. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Caloi%2C+R">R. Caloi</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Chi%2C+S">S. Chi</a>, <a href="/search/hep-ex?searchtype=author&query=Chiefari%2C+G">G. Chiefari</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Zorzi%2C+G">G. De Zorzi</a> , et al. (51 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0710.5892v1-abstract-short" style="display: inline;"> We present precise measurements of the eta and K0 masses using the processes phi to eta gamma, eta to gamma gamma and phi to Ks Kl, Ks to pi+ pi-. The K0 mass measurement, M_K=497.583 +/- 0.005 (stat) +/- 0.020 (syst) MeV, is in acceptable agreement with the previous measurements but is more accurate. We find m(eta) = 547.874 +/- 0.007 (stat) +/- 0.031 (syst) MeV. Our value is the most accurate… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0710.5892v1-abstract-full').style.display = 'inline'; document.getElementById('0710.5892v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0710.5892v1-abstract-full" style="display: none;"> We present precise measurements of the eta and K0 masses using the processes phi to eta gamma, eta to gamma gamma and phi to Ks Kl, Ks to pi+ pi-. The K0 mass measurement, M_K=497.583 +/- 0.005 (stat) +/- 0.020 (syst) MeV, is in acceptable agreement with the previous measurements but is more accurate. We find m(eta) = 547.874 +/- 0.007 (stat) +/- 0.031 (syst) MeV. Our value is the most accurate to date and is in agreement with two recent measurements based on eta decays, but is inconsistent, by about 10 sigma, with a measurement of comparable precision based on eta production at threshold. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0710.5892v1-abstract-full').style.display = 'none'; document.getElementById('0710.5892v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 October, 2007; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2007. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 8 figures Submitted to Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 0712:073,2007 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0707.4137">arXiv:0707.4137</a> <span> [<a href="https://arxiv.org/pdf/0707.4137">pdf</a>, <a href="https://arxiv.org/ps/0707.4137">ps</a>, <a href="https://arxiv.org/format/0707.4137">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the slope parameter 伪for the 畏\to 3蟺^0 decay at KLOE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=KLOE+collaboration"> KLOE collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+C">C. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Caloi%2C+R">R. Caloi</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Chi%2C+S">S. Chi</a>, <a href="/search/hep-ex?searchtype=author&query=Chiefari%2C+G">G. Chiefari</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a> , et al. (58 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0707.4137v1-abstract-short" style="display: inline;"> We report a preliminary measurement of the slope parameter $伪$ for the $畏\to 3\piz$ decay carried out with KLOE at DA$桅$NE; where $伪$ is the parameter describing the energy dependence of the square of the matrix element for this decay. By fitting the event density in the Dalitz plot with a collected statistic of 420 pb$^{-1}$ we determine $伪= -0.027 \pm 0.004 (stat) ^{+0.004}_{-0.006} (syst)$. T… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0707.4137v1-abstract-full').style.display = 'inline'; document.getElementById('0707.4137v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0707.4137v1-abstract-full" style="display: none;"> We report a preliminary measurement of the slope parameter $伪$ for the $畏\to 3\piz$ decay carried out with KLOE at DA$桅$NE; where $伪$ is the parameter describing the energy dependence of the square of the matrix element for this decay. By fitting the event density in the Dalitz plot with a collected statistic of 420 pb$^{-1}$ we determine $伪= -0.027 \pm 0.004 (stat) ^{+0.004}_{-0.006} (syst)$. This result is consistent with current chiral perturbation theory calculations within the unitary approach. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0707.4137v1-abstract-full').style.display = 'none'; document.getElementById('0707.4137v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 July, 2007; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2007. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">" Contributed paper to Lepton-Photon 2007 ". 5 pages, 4 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0707.4130">arXiv:0707.4130</a> <span> [<a href="https://arxiv.org/pdf/0707.4130">pdf</a>, <a href="https://arxiv.org/ps/0707.4130">ps</a>, <a href="https://arxiv.org/format/0707.4130">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Study of the process e+e- -> omega p0 with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=KLOE+collaboration"> KLOE collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Archilli%2C+F">F. Archilli</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+C">C. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocchetta%2C+S">S. Bocchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Caloi%2C+R">R. Caloi</a>, <a href="/search/hep-ex?searchtype=author&query=Campana%2C+P">P. Campana</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Capussela%2C+T">T. Capussela</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Chi%2C+S">S. Chi</a>, <a href="/search/hep-ex?searchtype=author&query=Chiefari%2C+G">G. Chiefari</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a> , et al. (59 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="0707.4130v2-abstract-short" style="display: inline;"> Using ~600 pb-1 collected with the KLOE detector at DAPhiNE, we have studied the production cross section of pi+ pi- pi0 pi0 and p0p0 gamma final states in e+e- collisions at center of mass energies between 1000 and 1030 MeV. By fitting the observed interference pattern around Mphi for both final states, we extract a measurement (preliminary) for the ratio Gamma(omega -> pi0 gamma)/Gamma(omega -… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0707.4130v2-abstract-full').style.display = 'inline'; document.getElementById('0707.4130v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0707.4130v2-abstract-full" style="display: none;"> Using ~600 pb-1 collected with the KLOE detector at DAPhiNE, we have studied the production cross section of pi+ pi- pi0 pi0 and p0p0 gamma final states in e+e- collisions at center of mass energies between 1000 and 1030 MeV. By fitting the observed interference pattern around Mphi for both final states, we extract a measurement (preliminary) for the ratio Gamma(omega -> pi0 gamma)/Gamma(omega -> pi+ pi- pi0) = 0.0934 +- 0.0022. Since these two final states represent the 98% of the omega decay channels, we use unitarity to derive BR(omega -> pi+pi-pi0)= (89.94 +- 0.23)% and BR(omega -> pi0 gamma) = (8.40 +- 0.19)%. Moreover, the parameters describing the e+e- -> pi+ pi- pi0 pi0 reaction around Mphi are used to extract the branching fraction for the OZI and G-parity violating phi -> omega pi0 decay: BR(phi -> omega pi0) = (5.63 +- 0.70) x 10^-5. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0707.4130v2-abstract-full').style.display = 'none'; document.getElementById('0707.4130v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 May, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 July, 2007; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2007. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contributed paper to Lepton Photon 2007</span> </p> </li> </ol> <nav 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