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class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1409.6577">arXiv:1409.6577</a> <span> [<a href="https://arxiv.org/pdf/1409.6577">pdf</a>, <a href="https://arxiv.org/ps/1409.6577">ps</a>, <a href="https://arxiv.org/format/1409.6577">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/10.1103/PhysRevLett.113.212002">10.1103/PhysRevLett.113.212002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $e^+e^-\to 蟺^0蟺^0 h_c$ and a neutral charmoniumlike structure $Z_c(4020)^0$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+D+W">D. W. Bennett</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a> , et al. (382 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="1409.6577v2-abstract-short" style="display: inline;"> Using data collected with the BESIII detector operating at the Beijing Electron Positron Collider at center-of-mass energies of $\sqrt{s}=4.23$, 4.26, and 4.36~GeV, we observe $\EE\to \pphc$ for the first time. The Born cross sections are measured and found to be about half of those of $\EE\to 蟺^+蟺^-h_c$ within less than 2$蟽$. In the $蟺^0h_c$ mass spectrum, a structure at 4.02~GeV/$c^2$ is found.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.6577v2-abstract-full').style.display = 'inline'; document.getElementById('1409.6577v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1409.6577v2-abstract-full" style="display: none;"> Using data collected with the BESIII detector operating at the Beijing Electron Positron Collider at center-of-mass energies of $\sqrt{s}=4.23$, 4.26, and 4.36~GeV, we observe $\EE\to \pphc$ for the first time. The Born cross sections are measured and found to be about half of those of $\EE\to 蟺^+蟺^-h_c$ within less than 2$蟽$. In the $蟺^0h_c$ mass spectrum, a structure at 4.02~GeV/$c^2$ is found. It is most likely to be the neutral isospin partner of the $\zcp^{\pm}$ observed in the process of $\EE\to 蟺^+蟺^-h_c$ is found. A fit to the $蟺^0 h_c$ invariant mass spectrum, with the width of the $\zcpn$ fixed to that of its charged isospin partner and possible interferences with non-$\zcpn$ amplitudes neglected, gives a mass of ($4023.9\pm 2.2 \pm 3.8$)~MeV/$c^2$ for the $\zcpn$, where the first error is statistical and the second systematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.6577v2-abstract-full').style.display = 'none'; document.getElementById('1409.6577v2-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 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 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">7 pages, 2 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett.113.212002(2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1409.4040">arXiv:1409.4040</a> <span> [<a href="https://arxiv.org/pdf/1409.4040">pdf</a>, <a href="https://arxiv.org/ps/1409.4040">ps</a>, <a href="https://arxiv.org/format/1409.4040">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/10.1103/PhysRevD.90.092002">10.1103/PhysRevD.90.092002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for C-parity violation in $J/ 蠄\to 纬纬$ and $ 纬蠁$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+D+W">D. W. Bennett</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (370 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="1409.4040v2-abstract-short" style="display: inline;"> Using $1.06\times10^8$ $蠄(3686)$ events recorded in $e^{+}e^{-}$ collisions at $\sqrt{s}=$ 3.686 GeV with the BESIII at the BEPCII collider, we present searches for C-parity violation in $J/蠄\to 纬纬$ and $ 纬蠁$ decays via $蠄(3686) \to J/蠄蟺^+蟺^-$. No significant signals are observed in either channel. Upper limits on the branching fractions are set to be $\mathcal{B}(J/蠄\to 纬纬) < 2.7 \times 10^{-7}$… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.4040v2-abstract-full').style.display = 'inline'; document.getElementById('1409.4040v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1409.4040v2-abstract-full" style="display: none;"> Using $1.06\times10^8$ $蠄(3686)$ events recorded in $e^{+}e^{-}$ collisions at $\sqrt{s}=$ 3.686 GeV with the BESIII at the BEPCII collider, we present searches for C-parity violation in $J/蠄\to 纬纬$ and $ 纬蠁$ decays via $蠄(3686) \to J/蠄蟺^+蟺^-$. No significant signals are observed in either channel. Upper limits on the branching fractions are set to be $\mathcal{B}(J/蠄\to 纬纬) < 2.7 \times 10^{-7}$ and $\mathcal{B}(J/蠄\to 纬蠁) < 1.4 \times 10^{-6}$ at the 90\% confidence level. The former is one order of magnitude more stringent than the previous upper limit, and the latter represents the first limit on this decay channel. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.4040v2-abstract-full').style.display = 'none'; document.getElementById('1409.4040v2-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 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 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">7 pages, 2 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 90, 092002 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1409.0865">arXiv:1409.0865</a> <span> [<a href="https://arxiv.org/pdf/1409.0865">pdf</a>, <a href="https://arxiv.org/ps/1409.0865">ps</a>, <a href="https://arxiv.org/format/1409.0865">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="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Experimental access to Transition Distribution Amplitudes with the PANDA experiment at FAIR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=PANDA+Collaboration"> PANDA Collaboration</a>, <a href="/search/?searchtype=author&query=Singh%2C+B+P">B. P. Singh</a>, <a href="/search/?searchtype=author&query=Erni%2C+W">W. Erni</a>, <a href="/search/?searchtype=author&query=Keshelashvili%2C+I">I. Keshelashvili</a>, <a href="/search/?searchtype=author&query=Krusche%2C+B">B. Krusche</a>, <a href="/search/?searchtype=author&query=%25%2C+M+S">M. Steinacher %</a>, <a href="/search/?searchtype=author&query=Liu%2C+B">B. Liu</a>, <a href="/search/?searchtype=author&query=Liu%2C+H">H. Liu</a>, <a href="/search/?searchtype=author&query=Liu%2C+Z">Z. Liu</a>, <a href="/search/?searchtype=author&query=Shen%2C+X">X. Shen</a>, <a href="/search/?searchtype=author&query=Wang%2C+C">C. Wang</a>, <a href="/search/?searchtype=author&query=%25%2C+J+Z">J. Zhao %</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Fink%2C+M">M. Fink</a>, <a href="/search/?searchtype=author&query=Heinsius%2C+F+H">F. H. Heinsius</a>, <a href="/search/?searchtype=author&query=Held%2C+T">T. Held</a>, <a href="/search/?searchtype=author&query=Holtmann%2C+T">T. Holtmann</a>, <a href="/search/?searchtype=author&query=Koch%2C+H">H. Koch</a>, <a href="/search/?searchtype=author&query=Kopf%2C+B">B. Kopf</a>, <a href="/search/?searchtype=author&query=K%C3%BCmmel%2C+M">M. K眉mmel</a>, <a href="/search/?searchtype=author&query=Kuhl%2C+G">G. Kuhl</a>, <a href="/search/?searchtype=author&query=Kuhlmann%2C+M">M. Kuhlmann</a>, <a href="/search/?searchtype=author&query=Leyhe%2C+M">M. Leyhe</a>, <a href="/search/?searchtype=author&query=Mikirtychyants%2C+M">M. Mikirtychyants</a>, <a href="/search/?searchtype=author&query=Musiol%2C+P">P. Musiol</a> , et al. (511 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="1409.0865v2-abstract-short" style="display: inline;"> Baryon-to-meson Transition Distribution Amplitudes (TDAs) encoding valuable new information on hadron structure appear as building blocks in the collinear factorized description for several types of hard exclusive reactions. In this paper, we address the possibility of accessing nucleon-to-pion ($蟺N$) TDAs from $\bar{p}p \to e^+e^- 蟺^0$ reaction with the future PANDA detector at the FAIR facility.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.0865v2-abstract-full').style.display = 'inline'; document.getElementById('1409.0865v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1409.0865v2-abstract-full" style="display: none;"> Baryon-to-meson Transition Distribution Amplitudes (TDAs) encoding valuable new information on hadron structure appear as building blocks in the collinear factorized description for several types of hard exclusive reactions. In this paper, we address the possibility of accessing nucleon-to-pion ($蟺N$) TDAs from $\bar{p}p \to e^+e^- 蟺^0$ reaction with the future PANDA detector at the FAIR facility. At high center of mass energy and high invariant mass squared of the lepton pair $q^2$, the amplitude of the signal channel $\bar{p}p \to e^+e^- 蟺^0$ admits a QCD factorized description in terms of $蟺N$ TDAs and nucleon Distribution Amplitudes (DAs) in the forward and backward kinematic regimes. Assuming the validity of this factorized description, we perform feasibility studies for measuring $\bar{p}p \to e^+e^- 蟺^0$ with the PANDA detector. Detailed simulations on signal reconstruction efficiency as well as on rejection of the most severe background channel, i.e. $\bar{p}p \to 蟺^+蟺^- 蟺^0$ were performed for the center of mass energy squared $s = 5$ GeV$^2$ and $s = 10$ GeV$^2$, in the kinematic regions $3.0 < q^2 < 4.3$ GeV$^2$ and $5 < q^2 < 9$ GeV$^2$, respectively, with a neutral pion scattered in the forward or backward cone $| \cos胃_{蟺^0}| > 0.5 $ in the proton-antiproton center of mass frame. Results of the simulation show that the particle identification capabilities of the PANDA detector will allow to achieve a background rejection factor of $5\cdot 10^7$ ($1\cdot 10^7$) at low (high) $q^2$ for $s=5$ GeV$^2$, and of $1\cdot 10^8$ ($6\cdot 10^6$) at low (high) $q^2$ for $s=10$ GeV$^2$, while keeping the signal reconstruction efficiency at around $40\%$. At both energies, a clean lepton signal can be reconstructed with the expected statistics corresponding to $2$ fb$^{-1}$ of integrated luminosity. (.../...) <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.0865v2-abstract-full').style.display = 'none'; document.getElementById('1409.0865v2-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> 30 November, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 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">19 pages, 7 figures (some multiple), 2 tables (each double), preprint of an article for epj - v2</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1408.3938">arXiv:1408.3938</a> <span> [<a href="https://arxiv.org/pdf/1408.3938">pdf</a>, <a href="https://arxiv.org/ps/1408.3938">ps</a>, <a href="https://arxiv.org/format/1408.3938">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/10.1103/PhysRevD.90.052009">10.1103/PhysRevD.90.052009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $J/蠄\rightarrow p\bar{p}a_{0}(980)$ at BESIII </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+D+W">D. W. Bennett</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a> , et al. (368 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="1408.3938v2-abstract-short" style="display: inline;"> Using $2.25\times10^{8}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage rings, we observe for the first time the process $J/蠄\rightarrow p\bar{p}a_{0}(980)$, $a_{0}(980)\rightarrow 蟺^{0}畏$ with a significance of $6.5蟽$ ($3.2蟽$ including systematic uncertainties). The product branching fraction of $J/蠄\rightarrow p\bar{p}a_{0}(980)\rightarrow p\bar{p}蟺^{0}畏$ is measured to be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.3938v2-abstract-full').style.display = 'inline'; document.getElementById('1408.3938v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1408.3938v2-abstract-full" style="display: none;"> Using $2.25\times10^{8}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage rings, we observe for the first time the process $J/蠄\rightarrow p\bar{p}a_{0}(980)$, $a_{0}(980)\rightarrow 蟺^{0}畏$ with a significance of $6.5蟽$ ($3.2蟽$ including systematic uncertainties). The product branching fraction of $J/蠄\rightarrow p\bar{p}a_{0}(980)\rightarrow p\bar{p}蟺^{0}畏$ is measured to be $(6.8\pm1.2\pm1.3)\times 10^{-5}$, where the first error is statistical and the second is systematic. This measurement provides information on the $a_{0}$ production near threshold coupling to $p\bar{p}$ and improves the understanding of the dynamics of $J/蠄$ decays to four body processes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.3938v2-abstract-full').style.display = 'none'; document.getElementById('1408.3938v2-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 September, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 August, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">8 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 90, 052009 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1406.2486">arXiv:1406.2486</a> <span> [<a href="https://arxiv.org/pdf/1406.2486">pdf</a>, <a href="https://arxiv.org/format/1406.2486">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/10.1103/PhysRevD.90.032007">10.1103/PhysRevD.90.032007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of e$^+$e$^-$ $\rightarrow \text{p} \overline{\text{p}}蟺^0$ in the Vicinity of the $蠄\text{(3770)}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (354 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="1406.2486v2-abstract-short" style="display: inline;"> The process $e^+e^-\rightarrow p\overline{p}蟺^0$ has been studied by analyzing data collected at $\sqrt{s}=3.773$ GeV, at $\sqrt{s}=3.650$ GeV, and during a $蠄(3770)$ line shape scan with the BESIII detector at the BEPCII collider. The Born cross section of $p \overline{p} 蟺^0$ in the vicinity of the $蠄(3770)$ is measured and the Born cross section of $蠄(3770)\rightarrow p \overline{p} 蟺^0$ is ext… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.2486v2-abstract-full').style.display = 'inline'; document.getElementById('1406.2486v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1406.2486v2-abstract-full" style="display: none;"> The process $e^+e^-\rightarrow p\overline{p}蟺^0$ has been studied by analyzing data collected at $\sqrt{s}=3.773$ GeV, at $\sqrt{s}=3.650$ GeV, and during a $蠄(3770)$ line shape scan with the BESIII detector at the BEPCII collider. The Born cross section of $p \overline{p} 蟺^0$ in the vicinity of the $蠄(3770)$ is measured and the Born cross section of $蠄(3770)\rightarrow p \overline{p} 蟺^0$ is extracted considering interference between resonant and continuum production amplitudes. Two solutions with the same probability and a significance of 1.5$蟽$ are found, and the Born cross section of $蠄(3770)\rightarrow p \overline{p} 蟺^0$ is determined to be less than 0.22 pb at 90% confidence level and $33.8\pm1.8\pm2.1$ pb, respectively. Using the estimated cross section and a constant decay amplitude approximation, the cross section $蟽(p\overline{p} \rightarrow 蠄(3770) 蟺^0)$ is calculated for the kinematic situation of the planned $\overline{\text{P}}\text{ANDA}$ experiment. The maximum cross section corresponding to the two solutions is expected to be less than $0.79$ nb at 90% confidence level and $122\pm10$ nb at a center of mass energy of 5.26 GeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.2486v2-abstract-full').style.display = 'none'; document.getElementById('1406.2486v2-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, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 90, 032007 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.3190">arXiv:1405.3190</a> <span> [<a href="https://arxiv.org/pdf/1405.3190">pdf</a>, <a href="https://arxiv.org/ps/1405.3190">ps</a>, <a href="https://arxiv.org/format/1405.3190">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/10.1103/PhysRevD.89.112005">10.1103/PhysRevD.89.112005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the radiative transitions $蠄(3770)\to纬畏_c$ and $纬畏_c(2S)$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+D+W">D. W. Bennett</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (359 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="1405.3190v2-abstract-short" style="display: inline;"> By using a 2.92 fb$^{-1}$ data sample taken at $\sqrt{s} = 3.773$ GeV with the BESIII detector operating at the BEPCII collider, we search for the radiative transitions $蠄(3770)\to纬畏_c$ and $纬畏_c(2S)$ through the hadronic decays $畏_c(畏_c(2S))\to K^0_SK^\pm蟺^\mp$. No significant excess of signal events above background is observed. We set upper limits at a 90% confidence level for the product branc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.3190v2-abstract-full').style.display = 'inline'; document.getElementById('1405.3190v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.3190v2-abstract-full" style="display: none;"> By using a 2.92 fb$^{-1}$ data sample taken at $\sqrt{s} = 3.773$ GeV with the BESIII detector operating at the BEPCII collider, we search for the radiative transitions $蠄(3770)\to纬畏_c$ and $纬畏_c(2S)$ through the hadronic decays $畏_c(畏_c(2S))\to K^0_SK^\pm蟺^\mp$. No significant excess of signal events above background is observed. We set upper limits at a 90% confidence level for the product branching fractions to be $\mathcal{B}(蠄(3770)\to纬畏_c)\times \mathcal{B}(畏_c\to K^0_SK^\pm蟺^\mp) < 1.6\times10^{-5}$ and $\mathcal{B}(蠄(3770)\to纬畏_c(2S))\times \mathcal{B}(畏_c(2S)\to K^0_SK^\pm蟺^\mp) < 5.6\times10^{-6}$. Combining our result with world-average values of $\mathcal{B}(畏_c(畏_c(2S))\to K^0_SK^\pm蟺^\mp)$, we find the branching fractions $\mathcal{B}(蠄(3770)\to纬畏_c) < 6.8\times10^{-4}$ and $\mathcal{B}(蠄(3770)\to纬畏_c(2S)) < 2.0\times10^{-3}$ at a 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.3190v2-abstract-full').style.display = 'none'; document.getElementById('1405.3190v2-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 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">10 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 112005 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.1571">arXiv:1405.1571</a> <span> [<a href="https://arxiv.org/pdf/1405.1571">pdf</a>, <a href="https://arxiv.org/ps/1405.1571">ps</a>, <a href="https://arxiv.org/format/1405.1571">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/10.1103/PhysRevD.89.112006">10.1103/PhysRevD.89.112006 <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 $蠄(3686)\to蠅K^+ K^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+D+W">D. W. Bennett</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a> , et al. (360 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="1405.1571v2-abstract-short" style="display: inline;"> With $1.06\times 10^8$ $蠄(3686)$ events collected with the BESIII detector, the branching fraction of $蠄(3686) \to 蠅K^+ K^-$ is measured to be $(1.54 \pm 0.04 \pm 0.11) \times 10^{-4}$. This is the most precise result to date, due to the largest $蠄(3686)$ sample, improved signal reconstruction efficiency, good simulation of the detector performance, and a more accurate knowledge of the continuum c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.1571v2-abstract-full').style.display = 'inline'; document.getElementById('1405.1571v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.1571v2-abstract-full" style="display: none;"> With $1.06\times 10^8$ $蠄(3686)$ events collected with the BESIII detector, the branching fraction of $蠄(3686) \to 蠅K^+ K^-$ is measured to be $(1.54 \pm 0.04 \pm 0.11) \times 10^{-4}$. This is the most precise result to date, due to the largest $蠄(3686)$ sample, improved signal reconstruction efficiency, good simulation of the detector performance, and a more accurate knowledge of the continuum contribution. Using the branching fraction of $J/蠄\to 蠅K^+ K^-$, the ratio $\mathcal{B}(蠄(3868) \to K^+K^-) / \mathcal{B}(J/蠄\to K^+K^-)$ is determined to be $(18.4 \pm 3.7)\,\%$. This constitutes a significantly improved test of the $12\,\%$ rule, with the uncertainty now dominated by the $J/蠄$ branching fraction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.1571v2-abstract-full').style.display = 'none'; document.getElementById('1405.1571v2-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> 1 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 112006 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.1076">arXiv:1405.1076</a> <span> [<a href="https://arxiv.org/pdf/1405.1076">pdf</a>, <a href="https://arxiv.org/ps/1405.1076">ps</a>, <a href="https://arxiv.org/format/1405.1076">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/10.1103/PhysRevD.90.012001">10.1103/PhysRevD.90.012001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision Measurement of the Mass of the $蟿$ Lepton </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (354 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="1405.1076v2-abstract-short" style="display: inline;"> An energy scan near the $蟿$ pair production threshold has been performed using the BESIII detector. About $24$ pb$^{-1}$ of data, distributed over four scan points, was collected. This analysis is based on $蟿$ pair decays to $ee$, $e渭$, $eh$, $渭渭$, $渭h$, $hh$, $e蟻$, $渭蟻$ and $蟺蟻$ final states, where $h$ denotes a charged $蟺$ or $K$. The mass of the $蟿$ lepton is measured from a maximum likelihood… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.1076v2-abstract-full').style.display = 'inline'; document.getElementById('1405.1076v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.1076v2-abstract-full" style="display: none;"> An energy scan near the $蟿$ pair production threshold has been performed using the BESIII detector. About $24$ pb$^{-1}$ of data, distributed over four scan points, was collected. This analysis is based on $蟿$ pair decays to $ee$, $e渭$, $eh$, $渭渭$, $渭h$, $hh$, $e蟻$, $渭蟻$ and $蟺蟻$ final states, where $h$ denotes a charged $蟺$ or $K$. The mass of the $蟿$ lepton is measured from a maximum likelihood fit to the $蟿$ pair production cross section data to be $m_蟿 = (1776.91\pm0.12 ^{+0.10}_{-0.13}$) MeV/$c^2$, which is currently the most precise value in a single measurement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.1076v2-abstract-full').style.display = 'none'; document.getElementById('1405.1076v2-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, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 90, 012001 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1404.4691">arXiv:1404.4691</a> <span> [<a href="https://arxiv.org/pdf/1404.4691">pdf</a>, <a href="https://arxiv.org/format/1404.4691">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.2014.05.071">10.1016/j.physletb.2014.05.071 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $D\to K^-蟺^+$ strong phase difference in $蠄(3770)\to D^0\overline{D}{}^0$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+D+W">D. W. Bennett</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a> , et al. (360 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="1404.4691v2-abstract-short" style="display: inline;"> We study $D^0\overline{D}{}^0$ pairs produced in $e^+e^-$ collisions at $\sqrt{s}=3.773$ GeV using a data sample of 2.92 fb$^{-1}$ collected with the BESIII detector. We measure the asymmetry $\mathcal{A}^{CP}_{K蟺}$ of the branching fractions of $D \to K^-蟺^+$ in $CP$-odd and $CP$-even eigenstates to be $(12.7\pm1.3\pm0.7)\times10^{-2}$. $\mathcal{A}^{CP}_{K蟺}$ can be used to extract the strong ph… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.4691v2-abstract-full').style.display = 'inline'; document.getElementById('1404.4691v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1404.4691v2-abstract-full" style="display: none;"> We study $D^0\overline{D}{}^0$ pairs produced in $e^+e^-$ collisions at $\sqrt{s}=3.773$ GeV using a data sample of 2.92 fb$^{-1}$ collected with the BESIII detector. We measure the asymmetry $\mathcal{A}^{CP}_{K蟺}$ of the branching fractions of $D \to K^-蟺^+$ in $CP$-odd and $CP$-even eigenstates to be $(12.7\pm1.3\pm0.7)\times10^{-2}$. $\mathcal{A}^{CP}_{K蟺}$ can be used to extract the strong phase difference $未_{K蟺}$ between the doubly Cabibbo-suppressed process $\overline{D}{}^{0}\to K^-蟺^+$ and the Cabibbo-favored process $D^0\to K^- 蟺^+$. Using world-average values of external parameters, we obtain $\cos未_{K蟺} = 1.02\pm0.11\pm0.06\pm0.01$. Here, the first and second uncertainties are statistical and systematic, respectively, while the third uncertainty arises from the external parameters. This is the most precise measurement of $未_{K蟺}$ to date. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.4691v2-abstract-full').style.display = 'none'; document.getElementById('1404.4691v2-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> 5 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 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">11 pages, 3 figures, accepted by PLB, minor changes from the last 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 734 (2014) 227 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1404.0096">arXiv:1404.0096</a> <span> [<a href="https://arxiv.org/pdf/1404.0096">pdf</a>, <a href="https://arxiv.org/ps/1404.0096">ps</a>, <a href="https://arxiv.org/format/1404.0096">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/10.1103/PhysRevLett.112.251801">10.1103/PhysRevLett.112.251801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $畏^{\prime}\to蟺^{+}蟺^{-}蟺^{+}蟺^{-}$ and $畏^{\prime}\to蟺^{+}蟺^{-}蟺^{0}蟺^{0}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (356 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="1404.0096v2-abstract-short" style="display: inline;"> Using a sample of $1.3\times 10^9$ $J/蠄$ events collected with the BESIII detector, we report the first observation of $畏^{\prime}\to蟺^{+}蟺^{-}蟺^{+}蟺^{-}$ and $畏^{\prime}\to蟺^{+}蟺^{-}蟺^{0}蟺^{0}$. The measured branching fractions are $\mathcal{B}$($畏^{\prime}\to蟺^{+}蟺^{-}蟺^{+}蟺^{-}$) = $(8.53\pm0.69({\rm stat.})\pm0.64({\rm syst.}))\times10^{-5}$ and $\mathcal{B}$(… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.0096v2-abstract-full').style.display = 'inline'; document.getElementById('1404.0096v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1404.0096v2-abstract-full" style="display: none;"> Using a sample of $1.3\times 10^9$ $J/蠄$ events collected with the BESIII detector, we report the first observation of $畏^{\prime}\to蟺^{+}蟺^{-}蟺^{+}蟺^{-}$ and $畏^{\prime}\to蟺^{+}蟺^{-}蟺^{0}蟺^{0}$. The measured branching fractions are $\mathcal{B}$($畏^{\prime}\to蟺^{+}蟺^{-}蟺^{+}蟺^{-}$) = $(8.53\pm0.69({\rm stat.})\pm0.64({\rm syst.}))\times10^{-5}$ and $\mathcal{B}$($畏^{\prime}\to蟺^{+}蟺^{-}蟺^{0}蟺^{0}$) = $(1.82\pm0.35({\rm stat.})\pm0.18({\rm syst.}))\times10^{-4}$, which are consistent with theoretical predictions based on a combination of chiral perturbation theory and vector-meson dominance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.0096v2-abstract-full').style.display = 'none'; document.getElementById('1404.0096v2-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> 4 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 March, 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">6 pages and 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 112, 251801 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1403.7042">arXiv:1403.7042</a> <span> [<a href="https://arxiv.org/pdf/1403.7042">pdf</a>, <a href="https://arxiv.org/ps/1403.7042">ps</a>, <a href="https://arxiv.org/format/1403.7042">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/10.1103/PhysRevD.89.092008">10.1103/PhysRevD.89.092008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of Electromagnetic Dalitz decays J/蠄\to P e^+e^- </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (356 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="1403.7042v2-abstract-short" style="display: inline;"> Based on a sample of (225.3\pm2.8)\times 10^{6} J/蠄events collected with the BESIII detector, the electromagnetic Dalitz decays of J/蠄\to P e^+e^-(P=畏'/畏/蟺^0) are studied. By reconstructing the pseudoscalar mesons in various decay modes, the decays J/蠄\to 畏' e^+e^-, J/蠄\to 畏e^+e^- and J/蠄\to 蟺^0 e^+e^- are observed for the first time. The branching fractions are determined to be \mathcal{B}(J/蠄\to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.7042v2-abstract-full').style.display = 'inline'; document.getElementById('1403.7042v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1403.7042v2-abstract-full" style="display: none;"> Based on a sample of (225.3\pm2.8)\times 10^{6} J/蠄events collected with the BESIII detector, the electromagnetic Dalitz decays of J/蠄\to P e^+e^-(P=畏'/畏/蟺^0) are studied. By reconstructing the pseudoscalar mesons in various decay modes, the decays J/蠄\to 畏' e^+e^-, J/蠄\to 畏e^+e^- and J/蠄\to 蟺^0 e^+e^- are observed for the first time. The branching fractions are determined to be \mathcal{B}(J/蠄\to 畏' e^+e^-) = (5.81\pm0.16\pm0.31)\times10^{-5}, \mathcal{B}(J/蠄\to 畏e^+e^-) = (1.16\pm0.07\pm0.06)\times10^{-5}, and \mathcal{B}(J/蠄\to 蟺^0 e^+e^-)=(7.56\pm1.32\pm0.50)\times10^{-7}, where the first errors are statistical and the second ones systematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.7042v2-abstract-full').style.display = 'none'; document.getElementById('1403.7042v2-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 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 092008 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1403.6011">arXiv:1403.6011</a> <span> [<a href="https://arxiv.org/pdf/1403.6011">pdf</a>, <a href="https://arxiv.org/ps/1403.6011">ps</a>, <a href="https://arxiv.org/format/1403.6011">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.2014.06.013">10.1016/j.physletb.2014.06.013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of $e^+e^- \rightarrow p\bar{p}$ in the vicinity of $蠄(3770)$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (355 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="1403.6011v2-abstract-short" style="display: inline;"> Using 2917 $\rm{pb}^{-1}$ of data accumulated at 3.773~$\rm{GeV}$, 44.5~$\rm{pb}^{-1}$ of data accumulated at 3.65~$\rm{GeV}$ and data accumulated during a $蠄(3770)$ line-shape scan with the BESIII detector, the reaction $e^+e^-\rightarrow p\bar{p}$ is studied considering a possible interference between resonant and continuum amplitudes. The cross section of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.6011v2-abstract-full').style.display = 'inline'; document.getElementById('1403.6011v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1403.6011v2-abstract-full" style="display: none;"> Using 2917 $\rm{pb}^{-1}$ of data accumulated at 3.773~$\rm{GeV}$, 44.5~$\rm{pb}^{-1}$ of data accumulated at 3.65~$\rm{GeV}$ and data accumulated during a $蠄(3770)$ line-shape scan with the BESIII detector, the reaction $e^+e^-\rightarrow p\bar{p}$ is studied considering a possible interference between resonant and continuum amplitudes. The cross section of $e^+e^-\rightarrow蠄(3770)\rightarrow p\bar{p}$, $蟽(e^+e^-\rightarrow蠄(3770)\rightarrow p\bar{p})$, is found to have two solutions, determined to be ($0.059\pm0.032\pm0.012$) pb with the phase angle $蠁= (255.8\pm37.9\pm4.8)^\circ$ ($<$0.11 pb at the 90% confidence level), or $蟽(e^+e^-\rightarrow蠄(3770)\rightarrow p\bar{p}) = (2.57\pm0.12\pm0.12$) pb with $蠁= (266.9\pm6.1\pm0.9)^\circ$ both of which agree with a destructive interference. Using the obtained cross section of $蠄(3770)\rightarrow p\bar{p}$, the cross section of $p\bar{p}\rightarrow 蠄(3770)$, which is useful information for the future PANDA experiment, is estimated to be either ($9.8\pm5.7$) nb ($<17.2$ nb at 90% C.L.) or $(425.6\pm42.9)$ nb. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.6011v2-abstract-full').style.display = 'none'; document.getElementById('1403.6011v2-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> 5 August, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett. B 735 (2014) 101 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1402.4025">arXiv:1402.4025</a> <span> [<a href="https://arxiv.org/pdf/1402.4025">pdf</a>, <a href="https://arxiv.org/ps/1402.4025">ps</a>, <a href="https://arxiv.org/format/1402.4025">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/10.1103/PhysRevD.89.071101">10.1103/PhysRevD.89.071101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the rare decays $J/蠄\to D_s^-蟻^+$ and $J/蠄\to \overline{D}{}^0\overline{K}{}^{\ast0}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (355 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="1402.4025v2-abstract-short" style="display: inline;"> A search for the rare decays of $J/蠄\to D_s^-蟻^+ + c.c.$ and $J/蠄\to \overline{D}{}^0\overline{K}{}^{\ast0} + c.c.$ is performed with a data sample of 225.3 million $J/蠄$ events collected with the BESIII detector. No evident signal is observed. Upper limits on the branching fractions are determined to be $\mathcal{B}(J/蠄\to D_s^-蟻^+ + c.c.) < 1.3 \times 10^{-5}$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1402.4025v2-abstract-full').style.display = 'inline'; document.getElementById('1402.4025v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1402.4025v2-abstract-full" style="display: none;"> A search for the rare decays of $J/蠄\to D_s^-蟻^+ + c.c.$ and $J/蠄\to \overline{D}{}^0\overline{K}{}^{\ast0} + c.c.$ is performed with a data sample of 225.3 million $J/蠄$ events collected with the BESIII detector. No evident signal is observed. Upper limits on the branching fractions are determined to be $\mathcal{B}(J/蠄\to D_s^-蟻^+ + c.c.) < 1.3 \times 10^{-5}$ and $\mathcal{B}(J/蠄\to \overline{D}{}^0\overline{K}{}^{\ast0} + c.c.) < 2.5 \times 10^{-6}$ at the $90\%$ confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1402.4025v2-abstract-full').style.display = 'none'; document.getElementById('1402.4025v2-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> 14 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 February, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">8 pages, 5 figures, accepted by PRD</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 071101 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1402.2023">arXiv:1402.2023</a> <span> [<a href="https://arxiv.org/pdf/1402.2023">pdf</a>, <a href="https://arxiv.org/ps/1402.2023">ps</a>, <a href="https://arxiv.org/format/1402.2023">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/10.1103/PhysRevD.89.074030">10.1103/PhysRevD.89.074030 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $蠂_{cJ}$ decaying into $畏^{\prime}K^+K^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (355 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="1402.2023v2-abstract-short" style="display: inline;"> Using $(106.41\pm 0.86) \times 10^{6}$ $蠄(3686)$ events collected with the BESIII detector at BEPCII, we study for the first time the decay $蠂_{cJ}\to畏'K^+K^-$, where $畏'\to纬蟻^{0}$ and $畏'\to畏蟺^+蟺^-$. A partial wave analysis in the covariant tensor amplitude formalism is performed for the decay $蠂_{c1}\to畏'K^+K^-$. Intermediate processes $蠂_{c1}\to畏' f_0(980)$, $蠂_{c1}\to畏' f_0(1710)$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1402.2023v2-abstract-full').style.display = 'inline'; document.getElementById('1402.2023v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1402.2023v2-abstract-full" style="display: none;"> Using $(106.41\pm 0.86) \times 10^{6}$ $蠄(3686)$ events collected with the BESIII detector at BEPCII, we study for the first time the decay $蠂_{cJ}\to畏'K^+K^-$, where $畏'\to纬蟻^{0}$ and $畏'\to畏蟺^+蟺^-$. A partial wave analysis in the covariant tensor amplitude formalism is performed for the decay $蠂_{c1}\to畏'K^+K^-$. Intermediate processes $蠂_{c1}\to畏' f_0(980)$, $蠂_{c1}\to畏' f_0(1710)$, $蠂_{c1}\to畏' f_2'(1525)$ and $蠂_{c1}\to K^*_0(1430)^{\pm}K^{\mp}$ ($K^*_0(1430)^{\pm}\to畏' K^{\pm}$) are observed with statistical significances larger than 5$蟽$, and their branching fractions are measured. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1402.2023v2-abstract-full').style.display = 'none'; document.getElementById('1402.2023v2-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 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 February, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">19 pages, 12 figures, format modified, several figures updated to be consistent with the version published at PRD</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 074030 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1401.3083">arXiv:1401.3083</a> <span> [<a href="https://arxiv.org/pdf/1401.3083">pdf</a>, <a href="https://arxiv.org/ps/1401.3083">ps</a>, <a href="https://arxiv.org/format/1401.3083">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/10.1103/PhysRevD.89.052001">10.1103/PhysRevD.89.052001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Amplitude Analysis of the $D^+ \to K^0_S 蟺^+ 蟺^0$ Dalitz Plot </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (354 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="1401.3083v2-abstract-short" style="display: inline;"> We perform an analysis of the $D^+ \to K^0_S 蟺^+ 蟺^0$ Dalitz plot using a data set of 2.92 fb$^{-1}$ of $e^+e^-$ collisions at the $蠄(3770)$ mass accumulated by the BESIII Experiment, in which 166694 candidate events are selected with a background of 15.1%. The Dalitz plot is found to be well-represented by a combination of six quasi-two-body decay channels ($K^0_S蟻^+$, $K^0_S蟻(1450)^+$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1401.3083v2-abstract-full').style.display = 'inline'; document.getElementById('1401.3083v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1401.3083v2-abstract-full" style="display: none;"> We perform an analysis of the $D^+ \to K^0_S 蟺^+ 蟺^0$ Dalitz plot using a data set of 2.92 fb$^{-1}$ of $e^+e^-$ collisions at the $蠄(3770)$ mass accumulated by the BESIII Experiment, in which 166694 candidate events are selected with a background of 15.1%. The Dalitz plot is found to be well-represented by a combination of six quasi-two-body decay channels ($K^0_S蟻^+$, $K^0_S蟻(1450)^+$, $\overline{K}^{*0}蟺^+$, $\overline{K}_0(1430)^0蟺^+$, $\overline{K}(1680)^0蟺^+$, $\overline魏^0蟺^+$) plus a small non-resonant component. Using the fit fractions from this analysis, partial branching ratios are updated with higher precision than previous measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1401.3083v2-abstract-full').style.display = 'none'; document.getElementById('1401.3083v2-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 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">24 pages, 7 figures, submitted to Phys. Rev. D; Author names added, typos added, old PACS numbers (PACS2003) hidded</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 052001 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1312.0374">arXiv:1312.0374</a> <span> [<a href="https://arxiv.org/pdf/1312.0374">pdf</a>, <a href="https://arxiv.org/ps/1312.0374">ps</a>, <a href="https://arxiv.org/format/1312.0374">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/10.1103/PhysRevD.89.051104">10.1103/PhysRevD.89.051104 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision measurements of $B(D^+ \rightarrow 渭^+ 谓_渭)$, the pseudoscalar decay constant $f_{D^+}$, and the quark mixing matrix element $|V_{\rm cd}|$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (355 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="1312.0374v2-abstract-short" style="display: inline;"> We report a measurement of the branching fraction $B(D^+ \rightarrow 渭^+ 谓_渭) = [3.71 \pm 0.19 (\rm stat) \pm 0.06 (\rm sys)]\times 10^{-4}$ based on 2.92 ${\rm fb^{-1}}$ of data accumulated at $\sqrt{s}=3.773$ GeV with the BESIII detector at the BEPCII collider. This measurement, in conjunction with the Cabibbo-Kobayashi-Maskawa matrix element $|V_{\rm cd}|$ determined from a global Standard Mode… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.0374v2-abstract-full').style.display = 'inline'; document.getElementById('1312.0374v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1312.0374v2-abstract-full" style="display: none;"> We report a measurement of the branching fraction $B(D^+ \rightarrow 渭^+ 谓_渭) = [3.71 \pm 0.19 (\rm stat) \pm 0.06 (\rm sys)]\times 10^{-4}$ based on 2.92 ${\rm fb^{-1}}$ of data accumulated at $\sqrt{s}=3.773$ GeV with the BESIII detector at the BEPCII collider. This measurement, in conjunction with the Cabibbo-Kobayashi-Maskawa matrix element $|V_{\rm cd}|$ determined from a global Standard Model fit, implies a value for the weak decay constant $f_{D^+}=(203.2 \pm 5.3 \pm 1.8)$ MeV. Additionally, using this branching fraction measurement together with a Lattice QCD prediction for $f_{D^+}$, we find $|V_{\rm cd}|=0.2210\pm 0.0058 \pm 0.0047$. In either case, these are the most precise results for these quantities to date. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.0374v2-abstract-full').style.display = 'none'; document.getElementById('1312.0374v2-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, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 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">6 pages, 2 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 89, 051104(R) (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.6099">arXiv:1310.6099</a> <span> [<a href="https://arxiv.org/pdf/1310.6099">pdf</a>, <a href="https://arxiv.org/ps/1310.6099">ps</a>, <a href="https://arxiv.org/format/1310.6099">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/10.1103/PhysRevD.88.112001">10.1103/PhysRevD.88.112001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the $畏_c(2S)/h_c\to p\bar{p}$ decays and measurements of the $蠂_{cJ}\to p\bar{p}$ branching fractions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESlll+Collaboration"> BESlll Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (354 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="1310.6099v2-abstract-short" style="display: inline;"> Using a sample of $1.06\times10^{8}~蠄(3686)$ events collected with the BESIII detector at BEPCII, the decays $畏_{c}(2S)\to p\bar{p}$ and $h_{c}\to p\bar{p}$ are searched for, where $畏_c(2S)$ and $h_c$ are reconstructed in the decay chains $蠄(3686)\to纬畏_{c}(2S)$, $畏_{c}(2S)\to p\bar{p}$ and $蠄(3686)\to蟺^{0}h_{c}$, $h_{c}\to p\bar{p}$, respectively. No significant signals are observed. The upper lim… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.6099v2-abstract-full').style.display = 'inline'; document.getElementById('1310.6099v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.6099v2-abstract-full" style="display: none;"> Using a sample of $1.06\times10^{8}~蠄(3686)$ events collected with the BESIII detector at BEPCII, the decays $畏_{c}(2S)\to p\bar{p}$ and $h_{c}\to p\bar{p}$ are searched for, where $畏_c(2S)$ and $h_c$ are reconstructed in the decay chains $蠄(3686)\to纬畏_{c}(2S)$, $畏_{c}(2S)\to p\bar{p}$ and $蠄(3686)\to蟺^{0}h_{c}$, $h_{c}\to p\bar{p}$, respectively. No significant signals are observed. The upper limits of the product branching fractions are determined to be $\mathcal{B}(蠄(3686)\to纬畏_c(2S))\times\mathcal{B}(畏_{c}(2S)\to p\bar{p})<1.4\times10^{-6}$ and $\mathcal{B}(蠄(3686)\to蟺^0h_c)\times\mathcal{B}(h_{c}\to p\bar{p})<1.3\times10^{-7}$ at the 90% C.L.. The branching fractions for $蠂_{cJ}\to p\bar{p}$ $(J=0,~1,~2)$ are also measured to be $(24.5\pm0.8\pm1.3,~8.6\pm0.5\pm0.5,~8.4\pm0.5\pm0.5)\times10^{-5}$, which are the world's most precise measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.6099v2-abstract-full').style.display = 'none'; document.getElementById('1310.6099v2-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 February, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 88, 112001 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.5826">arXiv:1310.5826</a> <span> [<a href="https://arxiv.org/pdf/1310.5826">pdf</a>, <a href="https://arxiv.org/ps/1310.5826">ps</a>, <a href="https://arxiv.org/format/1310.5826">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/10.1103/PhysRevD.88.112007">10.1103/PhysRevD.88.112007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the decay $蠄(3686)$ $\rightarrow$ $螞\bar危^{\pm}蟺^{\mp}+c.c.$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+collaboration"> BESIII collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=A%2C+R+B+F">R. Baldini Ferroli A</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=A%2C+M+B">M. Bertani A</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=A%2C+O+C">O. Cakir A</a>, <a href="/search/?searchtype=author&query=A%2C+A+C">A. Calcaterra A</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=B%2C+S+A+C">S. A. Cetin B</a> , et al. (353 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="1310.5826v1-abstract-short" style="display: inline;"> Using a sample of $1.06\times10^{8}$ $蠄(3686)$ events collected with the BESIII detector, we present the first observation of the decays of $蠄(3686)$ $\rightarrow$ $螞\bar危^{+}蟺^{-}+c.c.$ and $蠄(3686)$ $\rightarrow$ $螞\bar危^{-}蟺^{+}+c.c.$. The branching fractions are measured to be $\mathcal{B}(蠄(3686) \rightarrow 螞\bar危^{+}蟺^{-} + c.c.)=(1.40\pm 0.03 \pm 0.13)\times10^{-4}$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.5826v1-abstract-full').style.display = 'inline'; document.getElementById('1310.5826v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.5826v1-abstract-full" style="display: none;"> Using a sample of $1.06\times10^{8}$ $蠄(3686)$ events collected with the BESIII detector, we present the first observation of the decays of $蠄(3686)$ $\rightarrow$ $螞\bar危^{+}蟺^{-}+c.c.$ and $蠄(3686)$ $\rightarrow$ $螞\bar危^{-}蟺^{+}+c.c.$. The branching fractions are measured to be $\mathcal{B}(蠄(3686) \rightarrow 螞\bar危^{+}蟺^{-} + c.c.)=(1.40\pm 0.03 \pm 0.13)\times10^{-4}$ and $\mathcal{B}(蠄(3686) \rightarrow 螞\bar危^{-}蟺^{+}+c.c.)=(1.54\pm 0.04 \pm 0.13)\times10^{-4}$, where the first errors are statistical and the second ones systematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.5826v1-abstract-full').style.display = 'none'; document.getElementById('1310.5826v1-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 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">9 pages, 14 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 88, 112007 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.4101">arXiv:1310.4101</a> <span> [<a href="https://arxiv.org/pdf/1310.4101">pdf</a>, <a href="https://arxiv.org/ps/1310.4101">ps</a>, <a href="https://arxiv.org/format/1310.4101">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/10.1103/PhysRevLett.112.092001">10.1103/PhysRevLett.112.092001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $e^{+} e^{-} \to 纬X(3872)$ at BESIII </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+collaboration"> BESIII collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (352 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="1310.4101v3-abstract-short" style="display: inline;"> With data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies from 4.009 to 4.420 GeV, the process $e^{+} e^{-} \to 纬X(3872)$ is observed for the first time with a statistical significance of $6.3蟽$. The measured mass of the $X(3872)$ is ($3871.9\pm 0.7_{\rm stat.}\pm 0.2_{\rm sys.}$) MeV/$c^2$, in agreement with previous measurements. Measure… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.4101v3-abstract-full').style.display = 'inline'; document.getElementById('1310.4101v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.4101v3-abstract-full" style="display: none;"> With data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies from 4.009 to 4.420 GeV, the process $e^{+} e^{-} \to 纬X(3872)$ is observed for the first time with a statistical significance of $6.3蟽$. The measured mass of the $X(3872)$ is ($3871.9\pm 0.7_{\rm stat.}\pm 0.2_{\rm sys.}$) MeV/$c^2$, in agreement with previous measurements. Measurements of the product of the cross section $蟽[e^{+} e^{-} \to 纬X(3872)]$ and the branching fraction $\mathcal{B}[X(3872) \to 蟺^{+} 蟺^{-} J/蠄]$ at center-of-mass energies 4.009, 4.229, 4.260, and 4.360 GeV are reported. Our measurements are consistent with expectations for the radiative transition process $Y(4260) \to 纬X(3872)$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.4101v3-abstract-full').style.display = 'none'; document.getElementById('1310.4101v3-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> 14 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">Final version published in PRL</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 112, 092001 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1309.1896">arXiv:1309.1896</a> <span> [<a href="https://arxiv.org/pdf/1309.1896">pdf</a>, <a href="https://arxiv.org/ps/1309.1896">ps</a>, <a href="https://arxiv.org/format/1309.1896">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/10.1103/PhysRevLett.111.242001">10.1103/PhysRevLett.111.242001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a charged charmoniumlike structure Z_c(4020) and search for the Z_c(3900) in e+e- to pi+pi-h_c </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (339 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="1309.1896v2-abstract-short" style="display: inline;"> We study e+e- --> pi+pi-h_c at center-of-mass energies from 3.90 GeV to 4.42 GeV using data samples collected with the BESIII detector operating at the Beijing Electron Positron Collider. The Born cross sections are measured at 13 energies, and are found to be of the same order of magnitude as those of e+e- --> pi+pi-J/psi but with a different line shape. In the 蟺^\pm h_c mass spectrum, a distinct… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1309.1896v2-abstract-full').style.display = 'inline'; document.getElementById('1309.1896v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1309.1896v2-abstract-full" style="display: none;"> We study e+e- --> pi+pi-h_c at center-of-mass energies from 3.90 GeV to 4.42 GeV using data samples collected with the BESIII detector operating at the Beijing Electron Positron Collider. The Born cross sections are measured at 13 energies, and are found to be of the same order of magnitude as those of e+e- --> pi+pi-J/psi but with a different line shape. In the 蟺^\pm h_c mass spectrum, a distinct structure, referred to as Z_c(4020), is observed at 4.02 GeV/c^2. The Z_c(4020) carries an electric charge and couples to charmonium. A fit to the 蟺^\pm h_c invariant mass spectrum, neglecting possible interferences, results in a mass of (4022.9\pm 0.8\pm 2.7) MeV/c^2 and a width of (7.9\pm 2.7\pm 2.6) MeV for the Z_c(4020), where the first errors are statistical and the second systematic. No significant Z_c(3900) signal is observed, and upper limits on the Z_c(3900) production cross sections in 蟺^\pm h_c at center-of-mass energies of 4.23 and 4.26 GeV are set. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1309.1896v2-abstract-full').style.display = 'none'; document.getElementById('1309.1896v2-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 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 September, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">A short version published in Phys. Rev. Lett. (version 1 is longer and has more plots and numbers)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 111, 242001 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1308.2760">arXiv:1308.2760</a> <span> [<a href="https://arxiv.org/pdf/1308.2760">pdf</a>, <a href="https://arxiv.org/ps/1308.2760">ps</a>, <a href="https://arxiv.org/format/1308.2760">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 - Lattice">hep-lat</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/10.1103/PhysRevLett.112.132001">10.1103/PhysRevLett.112.132001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a charged charmoniumlike structure in $e^+e^- \to (D^{*} \bar{D}^{*})^{\pm} 蟺^\mp$ at $\sqrt{s}=4.26$GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+collaboration"> BESIII collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (336 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="1308.2760v2-abstract-short" style="display: inline;"> We study the process $e^+e^- \to (D^{*} \bar{D}^{*})^{\pm} 蟺^\mp$ at a center-of-mass energy of 4.26GeV using a 827pb$^{-1}$ data sample obtained with the BESIII detector at the Beijing Electron Positron Collider. Based on a partial reconstruction technique, the Born cross section is measured to be $(137\pm9\pm15)$pb. We observe a structure near the $(D^{*} \bar{D}^{*})^{\pm}$ threshold in the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1308.2760v2-abstract-full').style.display = 'inline'; document.getElementById('1308.2760v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1308.2760v2-abstract-full" style="display: none;"> We study the process $e^+e^- \to (D^{*} \bar{D}^{*})^{\pm} 蟺^\mp$ at a center-of-mass energy of 4.26GeV using a 827pb$^{-1}$ data sample obtained with the BESIII detector at the Beijing Electron Positron Collider. Based on a partial reconstruction technique, the Born cross section is measured to be $(137\pm9\pm15)$pb. We observe a structure near the $(D^{*} \bar{D}^{*})^{\pm}$ threshold in the $蟺^\mp$ recoil mass spectrum, which we denote as the $Z^{\pm}_c(4025)$. The measured mass and width of the structure are $(4026.3\pm2.6\pm3.7)$MeV/c$^2$ and $(24.8\pm5.6\pm7.7)$MeV, respectively. Its production ratio $\frac{蟽(e^+e^-\to Z^{\pm}_c(4025)蟺^\mp \to (D^{*} \bar{D}^{*})^{\pm} 蟺^\mp)}{蟽(e^+e^-\to (D^{*} \bar{D}^{*})^{\pm} 蟺^\mp)}$ is determined to be $0.65\pm0.09\pm0.06$. The first uncertainties are statistical and the second are systematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1308.2760v2-abstract-full').style.display = 'none'; document.getElementById('1308.2760v2-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 February, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 August, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">7 pages, 4 figures, 1 table; version accepted to be published in PRL</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 112, 132001 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1307.1189">arXiv:1307.1189</a> <span> [<a href="https://arxiv.org/pdf/1307.1189">pdf</a>, <a href="https://arxiv.org/ps/1307.1189">ps</a>, <a href="https://arxiv.org/format/1307.1189">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/10.1103/PhysRevD.88.032007">10.1103/PhysRevD.88.032007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision Measurements of ${\cal B}[蠄(3686) \to 蟺^+蟺^- J/蠄]$ and ${\cal B}[J/蠄\to l^+l^-]$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Braun%2C+S">S. Braun</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (334 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="1307.1189v1-abstract-short" style="display: inline;"> Based on $(106.41 \pm 0.86)\times 10^{6}$ $蠄(3686)$ events collected with the BESIII detector at the BEPCII collider, the branching fractions of $蠄(3686) \to 蟺^+蟺^- J/蠄$, $J/蠄\to e^+e^- $, and $J/蠄\to 渭^+渭^-$ are measured. We obtain ${\cal B}[蠄(3686) \to 蟺^+蟺^-J/蠄]=(34.98\pm 0.02\pm 0.45)%$, ${\cal B}[J/蠄\to e^+e^-] = (5.983 \pm 0.007 \pm 0.037)%$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.1189v1-abstract-full').style.display = 'inline'; document.getElementById('1307.1189v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1307.1189v1-abstract-full" style="display: none;"> Based on $(106.41 \pm 0.86)\times 10^{6}$ $蠄(3686)$ events collected with the BESIII detector at the BEPCII collider, the branching fractions of $蠄(3686) \to 蟺^+蟺^- J/蠄$, $J/蠄\to e^+e^- $, and $J/蠄\to 渭^+渭^-$ are measured. We obtain ${\cal B}[蠄(3686) \to 蟺^+蟺^-J/蠄]=(34.98\pm 0.02\pm 0.45)%$, ${\cal B}[J/蠄\to e^+e^-] = (5.983 \pm 0.007 \pm 0.037)%$ and ${\cal B}[J/蠄\to 渭^+渭^-] = (5.973 \pm 0.007 \pm 0.038)%$. The measurement of ${\cal B}[蠄(3686) \to 蟺^{+}蟺^{-}J/蠄]$ confirms the CLEO-c measurement, and is apparently larger than the others. The measured $J/蠄$ leptonic decay branching fractions agree with previous experiments within one standard deviation. These results lead to ${\cal B}[J/蠄\to l^+l^-] = (5.978 \pm 0.005 \pm 0.040)%$ by averaging over the $e^{+}e^{-}$ and $渭^{+}渭^{-}$ channels and a ratio of ${\cal B}[J/蠄\to e^+e^-] / {\cal B}[J/蠄\to 渭^+渭^-] = 1.0017 \pm 0.0017 \pm 0.0033$, which tests $e$-$渭$ universality at the four tenths of a percent level. All the measurements presented in this paper are the most precise in the world to date. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.1189v1-abstract-full').style.display = 'none'; document.getElementById('1307.1189v1-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 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">13 pages, 6 figures; To be submitted to PRD</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1305.5333">arXiv:1305.5333</a> <span> [<a href="https://arxiv.org/pdf/1305.5333">pdf</a>, <a href="https://arxiv.org/ps/1305.5333">ps</a>, <a href="https://arxiv.org/format/1305.5333">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/10.1103/PhysRevD.88.091502">10.1103/PhysRevD.88.091502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a structure at 1.84 GeV/c$^2$ in the $3(蟺^+蟺^-)$ mass spectrum in $J/蠄\rightarrow 纬3(蟺^+蟺^-)$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (340 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="1305.5333v3-abstract-short" style="display: inline;"> With a sample of 225.3 million $J/蠄$ events taken with the BESIII detector, the decay $J/蠄\rightarrow 纬3(蟺^+蟺^-)$ is analyzed. A structure at 1.84 GeV/c$^2$ is observed in the $3(蟺^+蟺^-)$ invariant mass spectrum with a statistical significance of 7.6$蟽$ . The mass and width are measured to be $M=1842.2\pm 4.2^{+7.1}_{-2.6}$ MeV/c$^2$ and $螕=83\pm 14 \pm 11$ MeV. The product branching fraction is d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.5333v3-abstract-full').style.display = 'inline'; document.getElementById('1305.5333v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1305.5333v3-abstract-full" style="display: none;"> With a sample of 225.3 million $J/蠄$ events taken with the BESIII detector, the decay $J/蠄\rightarrow 纬3(蟺^+蟺^-)$ is analyzed. A structure at 1.84 GeV/c$^2$ is observed in the $3(蟺^+蟺^-)$ invariant mass spectrum with a statistical significance of 7.6$蟽$ . The mass and width are measured to be $M=1842.2\pm 4.2^{+7.1}_{-2.6}$ MeV/c$^2$ and $螕=83\pm 14 \pm 11$ MeV. The product branching fraction is determined to be $B(J/蠄\rightarrow纬X(1840))\times B(X(1840)\rightarrow 3(蟺^+蟺^-))=(2.44\pm0.36^{+0.60}_{-0.74})\times 10^{-5}$. No $畏^\prime$ signals are observed in the $3(蟺^+蟺^-)$ invariant mass spectrum, and the upper limit of the branching fraction for the decay $畏^\prime\rightarrow 3(蟺^+蟺^-)$ is set to be $3.1\times10^{-5}$ at a 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.5333v3-abstract-full').style.display = 'none'; document.getElementById('1305.5333v3-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> 1 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">6 pages, 3 figures, minor changes, to be appeared in journal</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 88, 091502 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1305.1782">arXiv:1305.1782</a> <span> [<a href="https://arxiv.org/pdf/1305.1782">pdf</a>, <a href="https://arxiv.org/ps/1305.1782">ps</a>, <a href="https://arxiv.org/format/1305.1782">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/10.1103/PhysRevD.87.112011">10.1103/PhysRevD.87.112011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for Baryonic Decays of 蠄(3770) and 蠄(4040) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=akir%2C+O">O. akir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (339 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="1305.1782v1-abstract-short" style="display: inline;"> By analyzing data samples of 2.9 fb^{-1} collected at \sqrt s=3.773 GeV, 482 pb^{-1} collected at \sqrt s=4.009 GeV and 67 pb^{-1} collected at \sqrt s=3.542, 3.554, 3.561, 3.600 and 3.650 GeV with the BESIII detector at the BEPCII storage ring, we search for 蠄(3770) and 蠄(4040) decay to baryonic final states, including 螞\bar螞蟺^+蟺^-, 螞\bar螞蟺^0, 螞\bar螞畏, 危^+ \bar危^-, 危^0 \bar危^0, 螢^-\bar螢^+ and 螢^0… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.1782v1-abstract-full').style.display = 'inline'; document.getElementById('1305.1782v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1305.1782v1-abstract-full" style="display: none;"> By analyzing data samples of 2.9 fb^{-1} collected at \sqrt s=3.773 GeV, 482 pb^{-1} collected at \sqrt s=4.009 GeV and 67 pb^{-1} collected at \sqrt s=3.542, 3.554, 3.561, 3.600 and 3.650 GeV with the BESIII detector at the BEPCII storage ring, we search for 蠄(3770) and 蠄(4040) decay to baryonic final states, including 螞\bar螞蟺^+蟺^-, 螞\bar螞蟺^0, 螞\bar螞畏, 危^+ \bar危^-, 危^0 \bar危^0, 螢^-\bar螢^+ and 螢^0\bar螢^0 decays. None are observed, and upper limits are set at the 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.1782v1-abstract-full').style.display = 'none'; document.getElementById('1305.1782v1-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 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">9 pages, 3 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/1304.3205">arXiv:1304.3205</a> <span> [<a href="https://arxiv.org/pdf/1304.3205">pdf</a>, <a href="https://arxiv.org/ps/1304.3205">ps</a>, <a href="https://arxiv.org/format/1304.3205">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/10.1103/PhysRevD.87.112007">10.1103/PhysRevD.87.112007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the Lepton Flavor Violation Process $J/蠄\to e渭$ at BESIII </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=akir%2C+O">O. akir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (339 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="1304.3205v1-abstract-short" style="display: inline;"> We search for the lepton-flavor-violating decay of the $J/蠄$ into an electron and a muon using $(225.3\pm2.8)\times 10^{6}$ $J/蠄$ events collected with the BESIII detector at the BEPCII collider. Four candidate events are found in the signal region, consistent with background expectations. An upper limit on the branching fraction of $\mathcal{B}(J/蠄\to e渭)< 1.5 \times 10^{-7}$ (90% C.L.) is obtain… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.3205v1-abstract-full').style.display = 'inline'; document.getElementById('1304.3205v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1304.3205v1-abstract-full" style="display: none;"> We search for the lepton-flavor-violating decay of the $J/蠄$ into an electron and a muon using $(225.3\pm2.8)\times 10^{6}$ $J/蠄$ events collected with the BESIII detector at the BEPCII collider. Four candidate events are found in the signal region, consistent with background expectations. An upper limit on the branching fraction of $\mathcal{B}(J/蠄\to e渭)< 1.5 \times 10^{-7}$ (90% C.L.) is obtained. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.3205v1-abstract-full').style.display = 'none'; document.getElementById('1304.3205v1-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 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1304.1973">arXiv:1304.1973</a> <span> [<a href="https://arxiv.org/pdf/1304.1973">pdf</a>, <a href="https://arxiv.org/ps/1304.1973">ps</a>, <a href="https://arxiv.org/format/1304.1973">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/10.1103/PhysRevD.88.032010">10.1103/PhysRevD.88.032010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Partial wave analysis of $蠄(2S) \to p \bar{p}畏$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (338 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="1304.1973v1-abstract-short" style="display: inline;"> Using a sample of $1.06 \times 10^{8}$ $蠄(2S)$ events collected with the BESIII detector at BEPCII, the decay $蠄(2S) \to p \bar{p}畏$ is studied. A partial wave analysis determines that the intermediate state N(1535) with a mass of $1524\pm5^{+10}_{-4}$ MeV/$c^2$ and a width of $130^{+27+57}_{-24-10}$ MeV/$c^2$ is dominant in the decay; the product branching fraction is determined to be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.1973v1-abstract-full').style.display = 'inline'; document.getElementById('1304.1973v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1304.1973v1-abstract-full" style="display: none;"> Using a sample of $1.06 \times 10^{8}$ $蠄(2S)$ events collected with the BESIII detector at BEPCII, the decay $蠄(2S) \to p \bar{p}畏$ is studied. A partial wave analysis determines that the intermediate state N(1535) with a mass of $1524\pm5^{+10}_{-4}$ MeV/$c^2$ and a width of $130^{+27+57}_{-24-10}$ MeV/$c^2$ is dominant in the decay; the product branching fraction is determined to be $B(蠄(2S) \to N(1535)\bar{p})\times B(N(1535)\to p畏)+c.c. = (5.2\pm0.3^{+3.2}_{-1.2})\times 10^{-5}$. Furthermore, the branching fraction of $蠄(2S) \to 畏p \bar{p}$ is measured to be $(6.4\pm0.2\pm0.6)\times 10^{-5}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.1973v1-abstract-full').style.display = 'none'; document.getElementById('1304.1973v1-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 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1303.7360">arXiv:1303.7360</a> <span> [<a href="https://arxiv.org/pdf/1303.7360">pdf</a>, <a href="https://arxiv.org/ps/1303.7360">ps</a>, <a href="https://arxiv.org/format/1303.7360">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/10.1103/PhysRevD.87.092011">10.1103/PhysRevD.87.092011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $畏^\prime\rightarrow 蟺^+蟺^- e^+e^-$ and $畏^\prime\rightarrow 蟺^+蟺^-渭^+渭^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=akir%2C+O">O. akir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (339 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="1303.7360v1-abstract-short" style="display: inline;"> Based on a sample of 225.3 million J/蠄events accumulated with the BESIII detector at the BEPCII, the decays of 畏' to pi+pi-l+l- are studied via J/蠄to 纬畏'. A clear 畏' signal is observed in the pi+pi-e+e- mass spectrum, and the branching fraction is measured to be \BR(畏' to pi+pi-e+e-) = (2.11\pm0.12 (stat.)\pm0.15 (syst.))\times10^{-3}, which is in good agreement with theoretical predictions and th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.7360v1-abstract-full').style.display = 'inline'; document.getElementById('1303.7360v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1303.7360v1-abstract-full" style="display: none;"> Based on a sample of 225.3 million J/蠄events accumulated with the BESIII detector at the BEPCII, the decays of 畏' to pi+pi-l+l- are studied via J/蠄to 纬畏'. A clear 畏' signal is observed in the pi+pi-e+e- mass spectrum, and the branching fraction is measured to be \BR(畏' to pi+pi-e+e-) = (2.11\pm0.12 (stat.)\pm0.15 (syst.))\times10^{-3}, which is in good agreement with theoretical predictions and the previous measurement, but is determined with much higher precision. No 畏' signal is found in the pi+ pi- mu+ mu- mass spectrum, and the upper limit is determined to be \BR(畏' to pi+ pi- mu+ mu-)<2.9\times10^{-5} at the 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.7360v1-abstract-full').style.display = 'none'; document.getElementById('1303.7360v1-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 March, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">7 pages, 7 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/1303.5949">arXiv:1303.5949</a> <span> [<a href="https://arxiv.org/pdf/1303.5949">pdf</a>, <a href="https://arxiv.org/ps/1303.5949">ps</a>, <a href="https://arxiv.org/format/1303.5949">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/10.1103/PhysRevLett.110.252001">10.1103/PhysRevLett.110.252001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a> , et al. (345 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="1303.5949v2-abstract-short" style="display: inline;"> We study the process e+e- to pi+pi-J/psi at a center-of-mass energy of 4.260 GeV using a 525 pb^{-1} data sample collected with the BESIII detector operating at the Beijing Electron Positron Collider. The Born cross section is measured to be (62.9\pm 1.9\pm 3.7) pb, consistent with the production of the Y(4260). We observe a structure at around 3.9 GeV/c^2 in the 蟺^\pm J/psi mass spectrum, which w… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.5949v2-abstract-full').style.display = 'inline'; document.getElementById('1303.5949v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1303.5949v2-abstract-full" style="display: none;"> We study the process e+e- to pi+pi-J/psi at a center-of-mass energy of 4.260 GeV using a 525 pb^{-1} data sample collected with the BESIII detector operating at the Beijing Electron Positron Collider. The Born cross section is measured to be (62.9\pm 1.9\pm 3.7) pb, consistent with the production of the Y(4260). We observe a structure at around 3.9 GeV/c^2 in the 蟺^\pm J/psi mass spectrum, which we refer to as the Z_c(3900). If interpreted as a new particle, it is unusual in that it carries an electric charge and couples to charmonium. A fit to the 蟺^\pm J/psi invariant mass spectrum, neglecting interference, results in a mass of (3899.0\pm 3.6\pm 4.9) MeV/c^2 and a width of (46\pm 10\pm 20) MeV. Its production ratio is measured to be R=\frac{蟽(e+e- to 蟺^\pm Z_c(3900)^\mp to pi+pi-J/psi))} {蟽(e+e- to pi+pi-J/psi)}=(21.5\pm 3.3\pm 7.5)%. In all measurements the first errors are statistical and the second are systematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.5949v2-abstract-full').style.display = 'none'; document.getElementById('1303.5949v2-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 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 March, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">7 pages, 4 figures. Version appears in PRL</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 110, 252001 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1303.3108">arXiv:1303.3108</a> <span> [<a href="https://arxiv.org/pdf/1303.3108">pdf</a>, <a href="https://arxiv.org/ps/1303.3108">ps</a>, <a href="https://arxiv.org/format/1303.3108">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/10.1103/PhysRevD.87.112004">10.1103/PhysRevD.87.112004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of $J/蠄\rightarrow 蠅p \bar{p}$ at BESIII </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=The+BESIII+Collaboration"> The BESIII Collaboration</a>, <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (341 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="1303.3108v3-abstract-short" style="display: inline;"> The decay $J/蠄\rightarrow 蠅p \bar{p}$ has been studied, using $225.3\times 10^{6}$ $J/蠄$ events accumulated at BESIII. No significant enhancement near the $p\bar{p}$ invariant-mass threshold (denoted as $X(p\bar{p})$) is observed. The upper limit of the branching fraction $\mathcal{B}(J/蠄\rightarrow 蠅X(p\bar{p}) \rightarrow 蠅p \bar{p})$ is determined to be $3.9\times10^{-6}$ at the 95% confidence… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.3108v3-abstract-full').style.display = 'inline'; document.getElementById('1303.3108v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1303.3108v3-abstract-full" style="display: none;"> The decay $J/蠄\rightarrow 蠅p \bar{p}$ has been studied, using $225.3\times 10^{6}$ $J/蠄$ events accumulated at BESIII. No significant enhancement near the $p\bar{p}$ invariant-mass threshold (denoted as $X(p\bar{p})$) is observed. The upper limit of the branching fraction $\mathcal{B}(J/蠄\rightarrow 蠅X(p\bar{p}) \rightarrow 蠅p \bar{p})$ is determined to be $3.9\times10^{-6}$ at the 95% confidence level. The branching fraction of $J/蠄\rightarrow 蠅p \bar{p}$ is measured to be $\mathcal{B}(J/蠄\rightarrow 蠅p \bar{p}) =(9.0 \pm 0.2\ (\text{stat.})\pm 0.9\ (\text{syst.})) \times 10^{-4}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.3108v3-abstract-full').style.display = 'none'; document.getElementById('1303.3108v3-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 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 March, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">8 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 87, 112004 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1301.0053">arXiv:1301.0053</a> <span> [<a href="https://arxiv.org/pdf/1301.0053">pdf</a>, <a href="https://arxiv.org/ps/1301.0053">ps</a>, <a href="https://arxiv.org/format/1301.0053">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/10.1103/PhysRevD.87.092009">10.1103/PhysRevD.87.092009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Partial wave analysis of $J/蠄\to 纬畏畏$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a> , et al. (336 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="1301.0053v1-abstract-short" style="display: inline;"> Based on a sample of $2.25\times 10^{8}$ $J/蠄$ events collected with the BESIII detector at BEPCII, a full partial wave analysis on $J/蠄\to纬畏畏$ was performed using the relativistic covariant tensor amplitude method. The results show that the dominant $0^{++}$ and $2^{++}$ components are from the $f_0(1710)$, $f_0(2100)$, $f_0(1500)$, $f_2'(1525)$, $f_2(1810)$ and $f_2(2340)$. The resonance paramet… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.0053v1-abstract-full').style.display = 'inline'; document.getElementById('1301.0053v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1301.0053v1-abstract-full" style="display: none;"> Based on a sample of $2.25\times 10^{8}$ $J/蠄$ events collected with the BESIII detector at BEPCII, a full partial wave analysis on $J/蠄\to纬畏畏$ was performed using the relativistic covariant tensor amplitude method. The results show that the dominant $0^{++}$ and $2^{++}$ components are from the $f_0(1710)$, $f_0(2100)$, $f_0(1500)$, $f_2'(1525)$, $f_2(1810)$ and $f_2(2340)$. The resonance parameters and branching fractions are also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.0053v1-abstract-full').style.display = 'none'; document.getElementById('1301.0053v1-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 December, 2012; <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">Journal ref:</span> Phys. Rev. D. 87, 092009 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1211.5668">arXiv:1211.5668</a> <span> [<a href="https://arxiv.org/pdf/1211.5668">pdf</a>, <a href="https://arxiv.org/ps/1211.5668">ps</a>, <a href="https://arxiv.org/format/1211.5668">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/10.1103/PhysRevD.87.032008">10.1103/PhysRevD.87.032008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the near-threshold $蠅蠁$ mass enhancement in doubly OZI suppressed $J/蠄\to 纬蠅蠁$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a>, <a href="/search/?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/?searchtype=author&query=Chelkov%2C+G">G. Chelkov</a>, <a href="/search/?searchtype=author&query=Chen%2C+G">G. Chen</a> , et al. (326 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="1211.5668v1-abstract-short" style="display: inline;"> A 2.25$\times10^8$ $\jpsi$ event sample accumulated with the BESIII detector is used to study the doubly OZI suppressed decay modes $\jpsi\to纬\of$, $蠅\to\ppp$, $蠁\to\kk$. A strong deviation ($>$ 30$蟽$) from three-body $\jpsi\to纬蠅蠁$ phase space is observed near the $蠅蠁$ mass threshold that is consistent with a previous observation reported by the BESII experiment. A partial wave analysis with a ten… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.5668v1-abstract-full').style.display = 'inline'; document.getElementById('1211.5668v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1211.5668v1-abstract-full" style="display: none;"> A 2.25$\times10^8$ $\jpsi$ event sample accumulated with the BESIII detector is used to study the doubly OZI suppressed decay modes $\jpsi\to纬\of$, $蠅\to\ppp$, $蠁\to\kk$. A strong deviation ($>$ 30$蟽$) from three-body $\jpsi\to纬蠅蠁$ phase space is observed near the $蠅蠁$ mass threshold that is consistent with a previous observation reported by the BESII experiment. A partial wave analysis with a tensor covariant amplitude that assumes that the enhancement is due to the presence of a resonance, the X(1810), is performed, and confirms that the spin-parity of the X(1810) is $0^{++}$. The mass and width of the X(1810) are determined to be $M=1795\pm7$(stat)$^{+13}_{-5}$(syst)$\pm$19(mod) MeV/$c^2$ and $螕=95\pm10$(stat)$^{+21}_{-34}$(syst)$\pm$75(mod) MeV/$c^2$, respectively, and the product branching fraction is measured to be ${\cal B}(\jpsi\to纬X(1810))\times{\cal B}(X(1810)\to\of)=(2.00\pm0.08$(stat)$^{+0.45}_{-1.00}$(syst)$\pm$1.30(mod))$\times10^{-4}$. %where the first error is the statistical error and the second the systematical error. These results are consistent within errors with those of the BESII experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.5668v1-abstract-full').style.display = 'none'; document.getElementById('1211.5668v1-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 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2012. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1211.3600">arXiv:1211.3600</a> <span> [<a href="https://arxiv.org/pdf/1211.3600">pdf</a>, <a href="https://arxiv.org/ps/1211.3600">ps</a>, <a href="https://arxiv.org/format/1211.3600">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/10.1103/PhysRevD.87.032006">10.1103/PhysRevD.87.032006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for $畏$ and $畏^\prime\to 蟺^+ e^- \bar谓_e +c.c.$ decays in $\jpsi \to 蠁畏$ and $蠁畏^\prime$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a>, <a href="/search/?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a> , et al. (340 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="1211.3600v2-abstract-short" style="display: inline;"> Using a sample of 225.3 million $\jpsi$ events collected with the BESIII detector at the BEPCII $e^+e^-$ collider in 2009, searches for the decays of $畏$ and $畏^\prime\to蟺^+ e^- \bar谓_e +c.c.$ in $\jpsi \to 蠁畏$ and $蠁畏^\prime$ are performed. The $蠁$ signals, which are reconstructed in $K^+K^-$ final states, are used to tag $畏$ and $畏^\prime$ semileptonic decays. No signals are observed for either… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.3600v2-abstract-full').style.display = 'inline'; document.getElementById('1211.3600v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1211.3600v2-abstract-full" style="display: none;"> Using a sample of 225.3 million $\jpsi$ events collected with the BESIII detector at the BEPCII $e^+e^-$ collider in 2009, searches for the decays of $畏$ and $畏^\prime\to蟺^+ e^- \bar谓_e +c.c.$ in $\jpsi \to 蠁畏$ and $蠁畏^\prime$ are performed. The $蠁$ signals, which are reconstructed in $K^+K^-$ final states, are used to tag $畏$ and $畏^\prime$ semileptonic decays. No signals are observed for either $畏$ or $畏^\prime$, and upper limits at the 90% confidence level are determined to be $7.3\times 10^{-4}$ and $5.0\times 10^{-4}$ for the ratios $\frac{{\mathcal B}(畏\to 蟺^+ e^- \bar谓_e +c.c.)}{{\mathcal B}(畏\to \pip\pim\piz)}$ and $\frac{{\mathcal B}(畏^\prime\to 蟺^+ e^-\bar谓_e +c.c.)}{{\mathcal B}(畏^\prime \to \pip\pim畏)}$, respectively. These are the first upper limit values determined for $畏$ and $畏^\prime$ semileptonic weak decays. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.3600v2-abstract-full').style.display = 'none'; document.getElementById('1211.3600v2-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 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 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">8 pages, 4 figures; version accpeted for publication at PRD</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 87, 032006 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1211.2283">arXiv:1211.2283</a> <span> [<a href="https://arxiv.org/pdf/1211.2283">pdf</a>, <a href="https://arxiv.org/ps/1211.2283">ps</a>, <a href="https://arxiv.org/format/1211.2283">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="Data Analysis, Statistics and Probability">physics.data-an</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/10.1103/PhysRevD.87.032007">10.1103/PhysRevD.87.032007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of Baryon Pair Decays of $蠂_{cJ}$ Mesons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a>, <a href="/search/?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/?searchtype=author&query=Chelkov%2C+G">G. Chelkov</a>, <a href="/search/?searchtype=author&query=Chen%2C+G">G. Chen</a> , et al. (326 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="1211.2283v2-abstract-short" style="display: inline;"> Using 106 $\times 10^{6}$ $蠄^{\prime}$ decays collected with the BESIII detector at the BEPCII, three decays of $蠂_{cJ}$ ($J=0,1,2$) with baryon pairs ($\llb$, $\ssb$, $\SSB$) in the final state have been studied. The branching fractions are measured to be $\cal{B}$$(蠂_{c0,1,2}\rightarrow螞\bar螞) =(33.3 \pm 2.0 \pm 2.6)\times 10^{-5}$, $(12.2 \pm 1.1 \pm 1.1)\times 10^{-5}$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.2283v2-abstract-full').style.display = 'inline'; document.getElementById('1211.2283v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1211.2283v2-abstract-full" style="display: none;"> Using 106 $\times 10^{6}$ $蠄^{\prime}$ decays collected with the BESIII detector at the BEPCII, three decays of $蠂_{cJ}$ ($J=0,1,2$) with baryon pairs ($\llb$, $\ssb$, $\SSB$) in the final state have been studied. The branching fractions are measured to be $\cal{B}$$(蠂_{c0,1,2}\rightarrow螞\bar螞) =(33.3 \pm 2.0 \pm 2.6)\times 10^{-5}$, $(12.2 \pm 1.1 \pm 1.1)\times 10^{-5}$, $(20.8 \pm 1.6 \pm 2.3)\times 10^{-5}$; $\cal{B}$$(蠂_{c0,1,2}\rightarrow危^{0}\bar危^{0})$ = $(47.8 \pm 3.4 \pm 3.9)\times 10^{-5}$, $(3.8 \pm 1.0 \pm 0.5)\times 10^{-5}$, $(4.0 \pm 1.1 \pm 0.5) \times 10^{-5}$; and $\cal{B}$$(蠂_{c0,1,2}\rightarrow危^{+}\bar危^{-})$ = $(45.4 \pm 4.2 \pm 3.0)\times 10^{-5}$, $(5.4 \pm 1.5 \pm 0.5)\times 10^{-5}$, $(4.9 \pm 1.9 \pm 0.7)\times 10^{-5}$, where the first error is statistical and the second is systematic. Upper limits on the branching fractions for the decays of $蠂_{c1,2}\rightarrow危^{0}\bar危^{0}$, $危^{+}\bar危^{-}$, are estimated to be $\cal{B}$$(蠂_{c1}\rightarrow危^{0}\bar危^{0}) < 6.2\times 10^{-5}$, $\cal{B}$$(蠂_{c2}\rightarrow危^{0}\bar危^{0}) < 6.5\times 10^{-5}$, $\cal{B}$$(蠂_{c1}\rightarrow危^{+}\bar危^{-}) < 8.7\times 10^{-5}$ and $\cal{B}$$(蠂_{c2}\rightarrow危^{+}\bar危^{-}) < 8.8\times 10^{-5}$ at the 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.2283v2-abstract-full').style.display = 'none'; document.getElementById('1211.2283v2-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> 4 March, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 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">13 pages, 7 figures, 3 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 87, 032007 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1207.6581">arXiv:1207.6581</a> <span> [<a href="https://arxiv.org/pdf/1207.6581">pdf</a>, <a href="https://arxiv.org/format/1207.6581">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> </div> </div> <p class="title is-5 mathjax"> Technical Design Report for the: PANDA Micro Vertex Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=PANDA+Collaboration"> PANDA Collaboration</a>, <a href="/search/?searchtype=author&query=Erni%2C+W">W. Erni</a>, <a href="/search/?searchtype=author&query=Keshelashvili%2C+I">I. Keshelashvili</a>, <a href="/search/?searchtype=author&query=Krusche%2C+B">B. Krusche</a>, <a href="/search/?searchtype=author&query=Steinacher%2C+M">M. Steinacher</a>, <a href="/search/?searchtype=author&query=Heng%2C+Y">Y. Heng</a>, <a href="/search/?searchtype=author&query=Liu%2C+Z">Z. Liu</a>, <a href="/search/?searchtype=author&query=Liu%2C+H">H. Liu</a>, <a href="/search/?searchtype=author&query=Shen%2C+X">X. Shen</a>, <a href="/search/?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/?searchtype=author&query=Xu%2C+H">H. Xu</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Eickel%2C+K">K. Eickel</a>, <a href="/search/?searchtype=author&query=Feldbauer%2C+F">F. Feldbauer</a>, <a href="/search/?searchtype=author&query=Fink%2C+M">M. Fink</a>, <a href="/search/?searchtype=author&query=Friedel%2C+P">P. Friedel</a>, <a href="/search/?searchtype=author&query=Heinsius%2C+F+H">F. H. Heinsius</a>, <a href="/search/?searchtype=author&query=Held%2C+T">T. Held</a>, <a href="/search/?searchtype=author&query=Koch%2C+H">H. Koch</a>, <a href="/search/?searchtype=author&query=Kopf%2C+B">B. Kopf</a>, <a href="/search/?searchtype=author&query=Leyhe%2C+M">M. Leyhe</a>, <a href="/search/?searchtype=author&query=Motzko%2C+C">C. Motzko</a>, <a href="/search/?searchtype=author&query=Peliz%C3%A4us%2C+M">M. Peliz盲us</a>, <a href="/search/?searchtype=author&query=Pychy%2C+J">J. Pychy</a> , et al. (436 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="1207.6581v2-abstract-short" style="display: inline;"> This document illustrates the technical layout and the expected performance of the Micro Vertex Detector (MVD) of the PANDA experiment. The MVD will detect charged particles as close as possible to the interaction zone. Design criteria and the optimisation process as well as the technical solutions chosen are discussed and the results of this process are subjected to extensive Monte Carlo physics… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1207.6581v2-abstract-full').style.display = 'inline'; document.getElementById('1207.6581v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1207.6581v2-abstract-full" style="display: none;"> This document illustrates the technical layout and the expected performance of the Micro Vertex Detector (MVD) of the PANDA experiment. The MVD will detect charged particles as close as possible to the interaction zone. Design criteria and the optimisation process as well as the technical solutions chosen are discussed and the results of this process are subjected to extensive Monte Carlo physics studies. The route towards realisation of the detector is outlined. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1207.6581v2-abstract-full').style.display = 'none'; document.getElementById('1207.6581v2-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 August, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 July, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">189 pages, 225 figures, 41 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1205.5441">arXiv:1205.5441</a> <span> [<a href="https://arxiv.org/pdf/1205.5441">pdf</a>, <a href="https://arxiv.org/format/1205.5441">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/10.1140/epja/i2013-13025-8">10.1140/epja/i2013-13025-8 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Technical Design Report for the: PANDA Straw Tube Tracker </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=PANDA+Collaboration"> PANDA Collaboration</a>, <a href="/search/?searchtype=author&query=Erni%2C+W">W. Erni</a>, <a href="/search/?searchtype=author&query=Keshelashvili%2C+I">I. Keshelashvili</a>, <a href="/search/?searchtype=author&query=Krusche%2C+B">B. Krusche</a>, <a href="/search/?searchtype=author&query=Steinacher%2C+M">M. Steinacher</a>, <a href="/search/?searchtype=author&query=Heng%2C+Y">Y. Heng</a>, <a href="/search/?searchtype=author&query=Liu%2C+Z">Z. Liu</a>, <a href="/search/?searchtype=author&query=Liu%2C+H">H. Liu</a>, <a href="/search/?searchtype=author&query=Shen%2C+X">X. Shen</a>, <a href="/search/?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/?searchtype=author&query=Xu%2C+H">H. Xu</a>, <a href="/search/?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/?searchtype=author&query=Csap%C3%B3%2C+A">A. Csap贸</a>, <a href="/search/?searchtype=author&query=Feldbauer%2C+F">F. Feldbauer</a>, <a href="/search/?searchtype=author&query=Fink%2C+M">M. Fink</a>, <a href="/search/?searchtype=author&query=Friedel%2C+P">P. Friedel</a>, <a href="/search/?searchtype=author&query=Heinsius%2C+F+H">F. H. Heinsius</a>, <a href="/search/?searchtype=author&query=Held%2C+T">T. Held</a>, <a href="/search/?searchtype=author&query=Klask%2C+L">L. Klask</a>, <a href="/search/?searchtype=author&query=Koch%2C+H">H. Koch</a>, <a href="/search/?searchtype=author&query=Kopf%2C+B">B. Kopf</a>, <a href="/search/?searchtype=author&query=Leiber%2C+S">S. Leiber</a>, <a href="/search/?searchtype=author&query=Leyhe%2C+M">M. Leyhe</a> , et al. (451 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="1205.5441v2-abstract-short" style="display: inline;"> This document describes the technical layout and the expected performance of the Straw Tube Tracker (STT), the main tracking detector of the PANDA target spectrometer. The STT encloses a Micro-Vertex-Detector (MVD) for the inner tracking and is followed in beam direction by a set of GEM-stations. The tasks of the STT are the measurement of the particle momentum from the reconstructed trajectory an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.5441v2-abstract-full').style.display = 'inline'; document.getElementById('1205.5441v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1205.5441v2-abstract-full" style="display: none;"> This document describes the technical layout and the expected performance of the Straw Tube Tracker (STT), the main tracking detector of the PANDA target spectrometer. The STT encloses a Micro-Vertex-Detector (MVD) for the inner tracking and is followed in beam direction by a set of GEM-stations. The tasks of the STT are the measurement of the particle momentum from the reconstructed trajectory and the measurement of the specific energy-loss for a particle identification. Dedicated simulations with full analysis studies of certain proton-antiproton reactions, identified as being benchmark tests for the whole PANDA scientific program, have been performed to test the STT layout and performance. The results are presented, and the time lines to construct the STT are described. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.5441v2-abstract-full').style.display = 'none'; document.getElementById('1205.5441v2-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> 4 June, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 May, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">accepted for publication on EPJA</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A (2013) 49: 25 </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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