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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.01802">arXiv:2408.01802</a> <span> [<a href="https://arxiv.org/pdf/2408.01802">pdf</a>, <a href="https://arxiv.org/format/2408.01802">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="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/19/11/P11003">10.1088/1748-0221/19/11/P11003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First results on new helium based eco-gas mixtures for the Extreme Energy Events Project </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/hep-ex?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/hep-ex?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/hep-ex?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/hep-ex?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/hep-ex?searchtype=author&query=Cavazza%2C+F">F. Cavazza</a>, <a href="/search/hep-ex?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/hep-ex?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/hep-ex?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/hep-ex?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/hep-ex?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/hep-ex?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/hep-ex?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/hep-ex?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/hep-ex?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/hep-ex?searchtype=author&query=Gramegna%2C+F">F. Gramegna</a>, <a href="/search/hep-ex?searchtype=author&query=Grazzi%2C+S">S. Grazzi</a>, <a href="/search/hep-ex?searchtype=author&query=Hatzifotiadou%2C+D">D. Hatzifotiadou</a>, <a href="/search/hep-ex?searchtype=author&query=La+Rocca%2C+P">P. La Rocca</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Z">Z. Liu</a> , et al. (36 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="2408.01802v2-abstract-short" style="display: inline;"> The Extreme Energy Events (EEE) Project, a joint project of the Centro Fermi (Museo Storico della Fisica e Centro Studi e Ricerche "E.Fermi") and INFN, has a dual purpose: a scientific research program on cosmic rays at ground level and an intense outreach and educational program. The project consists in a network of about 60 tracking detectors, called telescopes, mostly hosted in Italian High Sch… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.01802v2-abstract-full').style.display = 'inline'; document.getElementById('2408.01802v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.01802v2-abstract-full" style="display: none;"> The Extreme Energy Events (EEE) Project, a joint project of the Centro Fermi (Museo Storico della Fisica e Centro Studi e Ricerche "E.Fermi") and INFN, has a dual purpose: a scientific research program on cosmic rays at ground level and an intense outreach and educational program. The project consists in a network of about 60 tracking detectors, called telescopes, mostly hosted in Italian High Schools. Each telescope is made by three Multigap Resistive Plate Chambers, operated so far with a gas mixture composed by 98% C$_2$H$_2$F$_4$ and 2% SF$_6$. Due to its high Global Warming Potential, a few years ago the EEE collaboration has started an extensive R&D on alternative mixtures environmentally sustainable and compatible with the current experimental setup and operational environment. Among other gas mixtures, the one with helium and hydrofluoroolefin R1234ze gave the best result during the preliminary tests performed with two of the network telescopes. The detector has proved to reach performance levels comparable to those obtained with previous mixtures, without any modification of the hardware. We will discuss the first results obtained with the new mixture, tested with different percentages of the two components. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.01802v2-abstract-full').style.display = 'none'; document.getElementById('2408.01802v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 6 figures, submitted to JINST</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 19 P11003 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.08440">arXiv:2311.08440</a> <span> [<a href="https://arxiv.org/pdf/2311.08440">pdf</a>, <a href="https://arxiv.org/format/2311.08440">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div 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/10.3390/instruments8010001">10.3390/instruments8010001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Secondary beams at high-intensity electron accelerator facilities </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Battaglieri%2C+M">Marco Battaglieri</a>, <a href="/search/hep-ex?searchtype=author&query=Bianconi%2C+A">Andrea Bianconi</a>, <a href="/search/hep-ex?searchtype=author&query=Bond%C3%AD%2C+M">Mariangela Bond铆</a>, <a href="/search/hep-ex?searchtype=author&query=De+Vita%2C+R">Raffaella De Vita</a>, <a href="/search/hep-ex?searchtype=author&query=Fulci%2C+A">Antonino Fulci</a>, <a href="/search/hep-ex?searchtype=author&query=Gosta%2C+G">Giulia Gosta</a>, <a href="/search/hep-ex?searchtype=author&query=Grazzi%2C+S">Stefano Grazzi</a>, <a href="/search/hep-ex?searchtype=author&query=Jo%2C+H">Hyon-Suk Jo</a>, <a href="/search/hep-ex?searchtype=author&query=Lee%2C+C">Changhui Lee</a>, <a href="/search/hep-ex?searchtype=author&query=Mandaglio%2C+G">Giuseppe Mandaglio</a>, <a href="/search/hep-ex?searchtype=author&query=Mascagna%2C+V">Valerio Mascagna</a>, <a href="/search/hep-ex?searchtype=author&query=Nagorna%2C+T">Tetiana Nagorna</a>, <a href="/search/hep-ex?searchtype=author&query=Pilloni%2C+A">Alessandro Pilloni</a>, <a href="/search/hep-ex?searchtype=author&query=Spreafico%2C+M">Marco Spreafico</a>, <a href="/search/hep-ex?searchtype=author&query=Tagliapietra%2C+L+J">Luca J Tagliapietra</a>, <a href="/search/hep-ex?searchtype=author&query=Venturelli%2C+L">Luca Venturelli</a>, <a href="/search/hep-ex?searchtype=author&query=Vittorini%2C+T">Tommaso Vittorini</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.08440v3-abstract-short" style="display: inline;"> The interaction of a high-current $O$(100~\textmu A), medium energy $O$(10\,GeV) electron beam with a thick target $O$(1m) produces an overwhelming shower of standard matter particles in addition to hypothetical Light Dark Matter particles. While most of the radiation (gamma, electron/positron, and neutron) is contained in the thick target, deep penetrating particles (muons, neutrinos, and light d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.08440v3-abstract-full').style.display = 'inline'; document.getElementById('2311.08440v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.08440v3-abstract-full" style="display: none;"> The interaction of a high-current $O$(100~\textmu A), medium energy $O$(10\,GeV) electron beam with a thick target $O$(1m) produces an overwhelming shower of standard matter particles in addition to hypothetical Light Dark Matter particles. While most of the radiation (gamma, electron/positron, and neutron) is contained in the thick target, deep penetrating particles (muons, neutrinos, and light dark matter particles) propagate over a long distance, producing high-intense secondary beams. Using sophisticated Monte Carlo simulations based on FLUKA and GEANT4, we explored the characteristics of secondary muons and neutrinos and (hypothetical) dark scalar particles produced by the interaction of Jefferson Lab 11 GeV intense electron beam with the experimental Hall-A beam dump. Considering the possible beam energy upgrade, this study was repeated for a 20 GeV CEBAF beam. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.08440v3-abstract-full').style.display = 'none'; document.getElementById('2311.08440v3-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 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Instruments 2024, 8(1), 1 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.17375">arXiv:2309.17375</a> <span> [<a href="https://arxiv.org/pdf/2309.17375">pdf</a>, <a href="https://arxiv.org/format/2309.17375">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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Ecological transition for the gas mixtures of the MRPC cosmic ray telescopes of the EEE Project </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ripoli%2C+C">C. Ripoli</a>, <a href="/search/hep-ex?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/hep-ex?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/hep-ex?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/hep-ex?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/hep-ex?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/hep-ex?searchtype=author&query=Cavazza%2C+D">D. Cavazza</a>, <a href="/search/hep-ex?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/hep-ex?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/hep-ex?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/hep-ex?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/hep-ex?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/hep-ex?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/hep-ex?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/hep-ex?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/hep-ex?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/hep-ex?searchtype=author&query=Gramstad%2C+E">E. Gramstad</a>, <a href="/search/hep-ex?searchtype=author&query=Grazzi%2C+S">S. Grazzi</a>, <a href="/search/hep-ex?searchtype=author&query=H%C3%A5land%2C+E+S">E. S. H氓land</a>, <a href="/search/hep-ex?searchtype=author&query=Hatzifotiadou%2C+D">D. Hatzifotiadou</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2309.17375v1-abstract-short" style="display: inline;"> The Extreme Energy Events (EEE) Collaboration is fully involved in an ecological transition. The use of the standard gas mixture, \ce{C_{2}H_{2}F_{4}}+ \ce{SF_{6}}, has stopped in favor of an alternative green mixture based on \ce{C_{3}H_{2}F_{4}} with the addition of He or \ce{CO_{2}}. The choise of these new mixtures is motivated by the significant lower Global Warming Potential (GWP) to reduce… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.17375v1-abstract-full').style.display = 'inline'; document.getElementById('2309.17375v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.17375v1-abstract-full" style="display: none;"> The Extreme Energy Events (EEE) Collaboration is fully involved in an ecological transition. The use of the standard gas mixture, \ce{C_{2}H_{2}F_{4}}+ \ce{SF_{6}}, has stopped in favor of an alternative green mixture based on \ce{C_{3}H_{2}F_{4}} with the addition of He or \ce{CO_{2}}. The choise of these new mixtures is motivated by the significant lower Global Warming Potential (GWP) to reduce the emission of gases potentially contributing to the greenhouse effect. The EEE experiment consists of 61 muon telescopes based on Multigap Resistive Plate Chambers (MRPCs), each telescope composed of 3 chambers filled with gas. Several EEE detectors are today completely fluxed with the new ecological mixture. This contribution will report recent results about the telescope performance obtained from studies with the eco-friendly alternative mixture carried out in the last years. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.17375v1-abstract-full').style.display = 'none'; document.getElementById('2309.17375v1-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 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2306.09360">arXiv:2306.09360</a> <span> [<a href="https://arxiv.org/pdf/2306.09360">pdf</a>, <a href="https://arxiv.org/format/2306.09360">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey 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 Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Accardi%2C+A">A. Accardi</a>, <a href="/search/hep-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikari%2C+D">D. Adhikari</a>, <a href="/search/hep-ex?searchtype=author&query=Afanasev%2C+A">A. Afanasev</a>, <a href="/search/hep-ex?searchtype=author&query=Akondi%2C+C+S">C. S. Akondi</a>, <a href="/search/hep-ex?searchtype=author&query=Akopov%2C+N">N. Akopov</a>, <a href="/search/hep-ex?searchtype=author&query=Albaladejo%2C+M">M. Albaladejo</a>, <a href="/search/hep-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Almeida-Zamora%2C+B">B. Almeida-Zamora</a>, <a href="/search/hep-ex?searchtype=author&query=Amaryan%2C+M">M. Amaryan</a>, <a href="/search/hep-ex?searchtype=author&query=Androi%C4%87%2C+D">D. Androi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/hep-ex?searchtype=author&query=Armstrong%2C+D+S">D. S. Armstrong</a>, <a href="/search/hep-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/hep-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/hep-ex?searchtype=author&query=Asaturyan%2C+A">A. Asaturyan</a>, <a href="/search/hep-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/hep-ex?searchtype=author&query=Avagyan%2C+H">H. Avagyan</a>, <a href="/search/hep-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/hep-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/hep-ex?searchtype=author&query=Bacchetta%2C+A">A. Bacchetta</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Baltzell%2C+N">N. Baltzell</a>, <a href="/search/hep-ex?searchtype=author&query=Barion%2C+L">L. Barion</a> , et al. (419 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="2306.09360v2-abstract-short" style="display: inline;"> This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a community effort, incorporating insights from a series of workshops conducted between March 2022 and April 2023. With a track record of over 25 years in delivering the world's most intense and precise multi-GeV electron… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.09360v2-abstract-full').style.display = 'inline'; document.getElementById('2306.09360v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.09360v2-abstract-full" style="display: none;"> This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a community effort, incorporating insights from a series of workshops conducted between March 2022 and April 2023. With a track record of over 25 years in delivering the world's most intense and precise multi-GeV electron beams, CEBAF's potential for a higher energy upgrade presents a unique opportunity for an innovative nuclear physics program, which seamlessly integrates a rich historical background with a promising future. The proposed physics program encompass a diverse range of investigations centered around the nonperturbative dynamics inherent in hadron structure and the exploration of strongly interacting systems. It builds upon the exceptional capabilities of CEBAF in high-luminosity operations, the availability of existing or planned Hall equipment, and recent advancements in accelerator technology. The proposed program cover various scientific topics, including Hadron Spectroscopy, Partonic Structure and Spin, Hadronization and Transverse Momentum, Spatial Structure, Mechanical Properties, Form Factors and Emergent Hadron Mass, Hadron-Quark Transition, and Nuclear Dynamics at Extreme Conditions, as well as QCD Confinement and Fundamental Symmetries. Each topic highlights the key measurements achievable at a 22 GeV CEBAF accelerator. Furthermore, this document outlines the significant physics outcomes and unique aspects of these programs that distinguish them from other existing or planned facilities. In summary, this document provides an exciting rationale for the energy upgrade of CEBAF to 22 GeV, outlining the transformative scientific potential that lies within reach, and the remarkable opportunities it offers for advancing our understanding of hadron physics and related fundamental phenomena. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.09360v2-abstract-full').style.display = 'none'; document.getElementById('2306.09360v2-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 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2023. </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">Updates to the list of authors; Preprint number changed from theory to experiment; Updates to sections 4 and 6, including additional figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> JLAB-PHY-23-3840 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.12377">arXiv:2211.12377</a> <span> [<a href="https://arxiv.org/pdf/2211.12377">pdf</a>, <a href="https://arxiv.org/format/2211.12377">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Ber%C5%82owski%2C+M">M. Ber艂owski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Amico%2C+R">R. D'Amico</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">E. Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+G">G. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a>, <a href="/search/hep-ex?searchtype=author&query=Gamrat%2C+S">S. Gamrat</a>, <a href="/search/hep-ex?searchtype=author&query=Gauzzi%2C+P">P. Gauzzi</a> , et al. (18 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.12377v3-abstract-short" style="display: inline;"> Tests of the T, CP and CPT symmetries in the neutral kaon system are performed by the direct comparison of the probabilities of a kaon transition process to its symmetry-conjugate. The exchange of in and out states required for a genuine test involving an anti-unitary transformation implied by time-reversal is implemented exploiting the entanglement of $K^0\bar{K}{}^0$ pairs produced at a $蠁$-fact… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.12377v3-abstract-full').style.display = 'inline'; document.getElementById('2211.12377v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.12377v3-abstract-full" style="display: none;"> Tests of the T, CP and CPT symmetries in the neutral kaon system are performed by the direct comparison of the probabilities of a kaon transition process to its symmetry-conjugate. The exchange of in and out states required for a genuine test involving an anti-unitary transformation implied by time-reversal is implemented exploiting the entanglement of $K^0\bar{K}{}^0$ pairs produced at a $蠁$-factory. A data sample collected by the KLOE experiment at DA$桅$NE corresponding to an integrated luminosity of about 1.7 fb$^{-1}$ is analysed to study the $螖$t distributions of the $蠁\to K_{S}K_{L}\to 蟺^+蟺^- \: 蟺^{\pm}e^{\mp}谓$ and $蠁\to K_{S}K_{L}\to 蟺^{\pm}e^{\mp}谓\: 3蟺^0$ processes, with $螖$t the difference of the kaon decay times. A comparison of the measured $螖$t distributions in the asymptotic region $螖t \gg 蟿_{S}$ allows to test for the first time T and CPT symmetries in kaon transitions with a precision of few percent, and to observe CP violation with this novel method. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.12377v3-abstract-full').style.display = 'none'; document.getElementById('2211.12377v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">26 pages, 10 figures. Minor style corrections applied before journal submission. Sumbmitted to Physics Letters B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.04872">arXiv:2208.04872</a> <span> [<a href="https://arxiv.org/pdf/2208.04872">pdf</a>, <a href="https://arxiv.org/format/2208.04872">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the $K_S \to 蟺e 谓$ branching fraction with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Amico%2C+R">R. D'Amico</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">E. Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+G">G. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a>, <a href="/search/hep-ex?searchtype=author&query=Gamrat%2C+S">S. Gamrat</a> , et al. (18 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2208.04872v4-abstract-short" style="display: inline;"> The branching fraction for the decay $K_S \to 蟺e 谓$ has been measured with a sample of 300 million $K_S$ mesons produced in $蠁\to K_L K_S$ decays recorded by the KLOE experiment at the DA$桅$NE $e^+e^-$ collider. Signal decays are selected by a boosted decision tree built with kinematic variables and time-of-flight measurements. Data control samples of $K_L \to 蟺e 谓$ decays are used to evaluate sig… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.04872v4-abstract-full').style.display = 'inline'; document.getElementById('2208.04872v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.04872v4-abstract-full" style="display: none;"> The branching fraction for the decay $K_S \to 蟺e 谓$ has been measured with a sample of 300 million $K_S$ mesons produced in $蠁\to K_L K_S$ decays recorded by the KLOE experiment at the DA$桅$NE $e^+e^-$ collider. Signal decays are selected by a boosted decision tree built with kinematic variables and time-of-flight measurements. Data control samples of $K_L \to 蟺e 谓$ decays are used to evaluate signal selection efficiencies. A fit to the reconstructed electron mass distribution finds 49647$\pm$316 signal events. Normalising to the $K_S \to 蟺^+蟺^-$ decay events the result for the branching fraction is $\mathcal{B}(K_S \to 蟺e 谓) = (7.211 \pm 0.046_{\rm stat} \pm 0.052_{\rm syst}) \times10^{-4}$. The combination with our previous measurement gives $\mathcal{B}(K_S \to 蟺e 谓) = (7.153 \pm 0.037_{\rm stat} \pm 0.043_{\rm syst}) \times10^{-4}$. From this value we derive $f_+(0)|V_{us}| = 0.2170 \pm 0.009$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.04872v4-abstract-full').style.display = 'none'; document.getElementById('2208.04872v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">arXiv admin note: substantial text overlap with arXiv:1912.05990</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.04328">arXiv:2111.04328</a> <span> [<a href="https://arxiv.org/pdf/2111.04328">pdf</a>, <a href="https://arxiv.org/format/2111.04328">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Precision tests of Quantum Mechanics and CPT symmetry with entangled neutral kaons at KLOE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Amico%2C+R">R. D'Amico</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Diociaiuti%2C+E">E. Diociaiuti</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+G">G. Fantini</a> , et al. (33 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.04328v2-abstract-short" style="display: inline;"> The quantum interference between the decays of entangled neutral kaons is studied in the process $蠁\rightarrow K_S K_L \rightarrow蟺^+蟺^-蟺^+蟺^-$, which exhibits the characteristic Einstein--Podolsky--Rosen correlations that prevent both kaons to decay into $蟺^+蟺^-$ at the same time. This constitutes a very powerful tool for testing at the utmost precision the quantum coherence of the entangled kaon… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.04328v2-abstract-full').style.display = 'inline'; document.getElementById('2111.04328v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.04328v2-abstract-full" style="display: none;"> The quantum interference between the decays of entangled neutral kaons is studied in the process $蠁\rightarrow K_S K_L \rightarrow蟺^+蟺^-蟺^+蟺^-$, which exhibits the characteristic Einstein--Podolsky--Rosen correlations that prevent both kaons to decay into $蟺^+蟺^-$ at the same time. This constitutes a very powerful tool for testing at the utmost precision the quantum coherence of the entangled kaon pair state, and to search for tiny decoherence and CPT violation effects, which may be justified in a quantum gravity framework. The analysed data sample was collected with the KLOE detector at DA$桅$NE, the Frascati $蠁$-factory, and corresponds to an integrated luminosity of about 1.7 fb$^{-1}$, i.e. to about $1.7 \times 10^9$ $蠁\rightarrow K_S K_L$ decays produced. From the fit of the observed $螖t$ distribution, being $螖t$ the difference of the kaon decay times, the decoherence and CPT violation parameters of various phenomenological models are measured with a largely improved accuracy with respect to previous analyses. The results are consistent with no deviation from quantum mechanics and CPT symmetry, while for some parameters the precision reaches the interesting level at which -- in the most optimistic scenarios -- quantum gravity effects might show up. They provide the most stringent limits up to date on the considered models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.04328v2-abstract-full').style.display = 'none'; document.getElementById('2111.04328v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.16773">arXiv:2006.16773</a> <span> [<a href="https://arxiv.org/pdf/2006.16773">pdf</a>, <a href="https://arxiv.org/format/2006.16773">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="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Strategies to reduce the environmental impact in the MRPC array of the EEE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Panetta%2C+M+P">M. P. Panetta</a>, <a href="/search/hep-ex?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/hep-ex?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/hep-ex?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/hep-ex?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/hep-ex?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/hep-ex?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/hep-ex?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/hep-ex?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/hep-ex?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/hep-ex?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/hep-ex?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/hep-ex?searchtype=author&query=Fabbri%2C+F">F. Fabbri</a>, <a href="/search/hep-ex?searchtype=author&query=Falchieri%2C+D">D. Falchieri</a>, <a href="/search/hep-ex?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/hep-ex?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/hep-ex?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/hep-ex?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/hep-ex?searchtype=author&query=Grazzi%2C+S">S. Grazzi</a>, <a href="/search/hep-ex?searchtype=author&query=Hatzifotiadou%2C+D">D. Hatzifotiadou</a> , et al. (39 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.16773v2-abstract-short" style="display: inline;"> The Extreme Energy Events (EEE) Project employs Multi-gap Resistive Plate Chamber (MRPC) for studying the secondary cosmic ray muons in Extensive Air Showers. The array consists of about 60 tracking detectors, sparse on Italian territory and at CERN. The MRPCs are flowed with a gas mixture based on $C_2H_2F_4$ and $SF_6$, both of which are fluorinated greenhouse gases with a high environmental imp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.16773v2-abstract-full').style.display = 'inline'; document.getElementById('2006.16773v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.16773v2-abstract-full" style="display: none;"> The Extreme Energy Events (EEE) Project employs Multi-gap Resistive Plate Chamber (MRPC) for studying the secondary cosmic ray muons in Extensive Air Showers. The array consists of about 60 tracking detectors, sparse on Italian territory and at CERN. The MRPCs are flowed with a gas mixture based on $C_2H_2F_4$ and $SF_6$, both of which are fluorinated greenhouse gases with a high environmental impact on the atmosphere. Due to the restrictions imposed by the European Union, these gases are being phased out of production and their cost is largely increasing. The EEE Collaboration started a campaign to reduce the gas emission from its array with the aim of containing costs and decreasing the experiment global warming impact. One method is to reduce the gas rate in each EEE detector. Another is to develop a gas recirculation system, whose a first prototype has been installed at one of the EEE stations located at CERN. Jointly a parallel strategy is focused on searching for environmental friendly gas mixtures which are able to substitute the standard mixture without affecting the MRPC performance. An overview and first results are presented here. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.16773v2-abstract-full').style.display = 'none'; document.getElementById('2006.16773v2-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 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 9 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.14710">arXiv:2006.14710</a> <span> [<a href="https://arxiv.org/pdf/2006.14710">pdf</a>, <a href="https://arxiv.org/ps/2006.14710">ps</a>, <a href="https://arxiv.org/format/2006.14710">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP10(2020)047">10.1007/JHEP10(2020)047 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Upper limit on the $畏\to蟺^{+}蟺^{-}$ branching fraction with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Fermani%2C+P">P. Fermani</a>, <a href="/search/hep-ex?searchtype=author&query=Fiore%2C+S">S. Fiore</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a> , et al. (31 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.14710v2-abstract-short" style="display: inline;"> Based on an integrated luminosity of 1.61 fb$^{-1}$ $e^+e^-$ collision data collected with the KLOE detector at DA$桅$NE, the Frascati $蠁$-factory, a search for the $P$- and $CP$-violating decay $畏\to蟺^{+}蟺^{-}$ has been performed. Radiative $蠁\to畏纬$ decay is exploited to access the $畏$ mesons. No signal is observed in the $蟺^{+}蟺^{-}$ invariant mass spectrum, and the upper limit on the branching f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.14710v2-abstract-full').style.display = 'inline'; document.getElementById('2006.14710v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.14710v2-abstract-full" style="display: none;"> Based on an integrated luminosity of 1.61 fb$^{-1}$ $e^+e^-$ collision data collected with the KLOE detector at DA$桅$NE, the Frascati $蠁$-factory, a search for the $P$- and $CP$-violating decay $畏\to蟺^{+}蟺^{-}$ has been performed. Radiative $蠁\to畏纬$ decay is exploited to access the $畏$ mesons. No signal is observed in the $蟺^{+}蟺^{-}$ invariant mass spectrum, and the upper limit on the branching fraction at 90\% confidence level is determined to be ${\mathcal B}(畏\to蟺^{+}蟺^{-})<4.9\times10^{-6}$, which is approximately three times smaller than the previous KLOE result. From the combination of these two measurements we get ${\mathcal B}(畏\to蟺^{+}蟺^{-}) < 4.4\times10^{-6}$ at 90\% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.14710v2-abstract-full').style.display = 'none'; document.getElementById('2006.14710v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. High Energ. Phys. 2020, 47 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.05990">arXiv:1912.05990</a> <span> [<a href="https://arxiv.org/pdf/1912.05990">pdf</a>, <a href="https://arxiv.org/format/1912.05990">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2020.135378">10.1016/j.physletb.2020.135378 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the branching fraction for the decay $K_S \to 蟺渭谓$ with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwisnski%2C+E">E. Czerwisnski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Fermani%2C+P">P. Fermani</a>, <a href="/search/hep-ex?searchtype=author&query=Fiore%2C+S">S. Fiore</a>, <a href="/search/hep-ex?searchtype=author&query=Gajos%2C+A">A. Gajos</a> , et al. (31 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1912.05990v3-abstract-short" style="display: inline;"> Based on a sample of 300 million $K_S$ mesons produced in $蠁\to K_L K_S$ decays recorded by the KLOE experiment at the DA$桅$NE $e^+e^-$ collider we have measured the branching fraction for the decay $K_S \to 蟺渭谓$. The $K_S$ mesons are identified by the interaction of $K_L$ mesons in the detector. The $K_S \to 蟺渭谓$ decays are selected by a boosted decision tree built with kinematic variables and by… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.05990v3-abstract-full').style.display = 'inline'; document.getElementById('1912.05990v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.05990v3-abstract-full" style="display: none;"> Based on a sample of 300 million $K_S$ mesons produced in $蠁\to K_L K_S$ decays recorded by the KLOE experiment at the DA$桅$NE $e^+e^-$ collider we have measured the branching fraction for the decay $K_S \to 蟺渭谓$. The $K_S$ mesons are identified by the interaction of $K_L$ mesons in the detector. The $K_S \to 蟺渭谓$ decays are selected by a boosted decision tree built with kinematic variables and by a time-of-flight measurement. Signal efficiencies are evaluated with data control samples of $K_L \to 蟺渭谓$ decays. A fit to the reconstructed muon mass distribution finds $7223 \pm 180$ signal events. Normalising to the $K_S \to 蟺^+ 蟺^-$ decay events the result for the branching fraction is $\mathcal{B}(K_S \to 蟺渭谓) = (4.56 \pm 0.11_{\rm stat} \pm 0.17_{\rm syst})\times10^{-4}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.05990v3-abstract-full').style.display = 'none'; document.getElementById('1912.05990v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 12 figures, Accepted in PLB</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.02691">arXiv:1807.02691</a> <span> [<a href="https://arxiv.org/pdf/1807.02691">pdf</a>, <a href="https://arxiv.org/format/1807.02691">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2018.08.012">10.1016/j.physletb.2018.08.012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Combined limit on the production of a light gauge boson decaying into $渭^+渭^-$ and $蟺^+蟺^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostinio%2C+G">G. D'Agostinio</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A9%2C+E">E. Dan茅</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a> , et al. (35 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1807.02691v2-abstract-short" style="display: inline;"> We searched for the $渭^+渭^-$ decay of a light vector gauge boson, also known as dark photon, in the $e^+ e^- \to 渭^+ 渭^- 纬_{\rm ISR}$ process by means of the Initial State Radiation (ISR) method. We used 1.93~fb$^{-1}$ of data collected by the KLOE experiment at the DA$桅$NE $蠁$-factory. No structures have been observed over the irreducible $渭^+ 渭^-$ background. A 90\% CL limit on the ratio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.02691v2-abstract-full').style.display = 'inline'; document.getElementById('1807.02691v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.02691v2-abstract-full" style="display: none;"> We searched for the $渭^+渭^-$ decay of a light vector gauge boson, also known as dark photon, in the $e^+ e^- \to 渭^+ 渭^- 纬_{\rm ISR}$ process by means of the Initial State Radiation (ISR) method. We used 1.93~fb$^{-1}$ of data collected by the KLOE experiment at the DA$桅$NE $蠁$-factory. No structures have been observed over the irreducible $渭^+ 渭^-$ background. A 90\% CL limit on the ratio $\varepsilon^2=伪^{\prime}/伪$ between the dark coupling constant and the fine structure constant of $ 3\times 10^{-6}-2\times 10^{-7}$ has been set in the dark photon mass region between 519 MeV and 973 MeV. This new limit has been combined with the published result obtained investigating the hypothesis of the dark photon decaying into hadrons in $e^+ e^- \to 蟺^+ 蟺^- 纬_{\rm ISR}$ events. The combined 90\% CL limit increases the sensitivity especially in the $蟻-蠅$ interference region and excludes $\varepsilon^2$ greater than $(13-2)\times 10^{-7}$. For dark photon masses greater than 600 MeV the combined limit is lower than 8~$\times\, 10^{-7}$ resulting more stringent than present constraints from other experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.02691v2-abstract-full').style.display = 'none'; document.getElementById('1807.02691v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 9 figures, 1 table, accepted for publication in Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 784 (2018), 336 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.08654">arXiv:1806.08654</a> <span> [<a href="https://arxiv.org/pdf/1806.08654">pdf</a>, <a href="https://arxiv.org/format/1806.08654">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP09(2018)021">10.1007/JHEP09(2018)021 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the charge asymmetry for the $K_S \rightarrow 蟺e 谓$ decay and test of CPT symmetry with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Ber%C5%82owski%2C+M">M. Ber艂owski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+G">G. Fantini</a> , et al. (35 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1806.08654v2-abstract-short" style="display: inline;"> Using 1.63 fb$^{-1}$ of integrated luminosity collected by the KLOE experiment about $7\times 10^4$ $K_S \rightarrow 蟺^{\pm}e^{\mp}谓$ decays have been reconstructed. The measured value of the charge asymmetry for this decay is $A_S = (-4.9 \pm 5.7_{stat} \pm 2.6_{syst}) \times 10^{-3}$, which is almost twice more precise than the previous KLOE result. The combination of these two measurements give… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.08654v2-abstract-full').style.display = 'inline'; document.getElementById('1806.08654v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.08654v2-abstract-full" style="display: none;"> Using 1.63 fb$^{-1}$ of integrated luminosity collected by the KLOE experiment about $7\times 10^4$ $K_S \rightarrow 蟺^{\pm}e^{\mp}谓$ decays have been reconstructed. The measured value of the charge asymmetry for this decay is $A_S = (-4.9 \pm 5.7_{stat} \pm 2.6_{syst}) \times 10^{-3}$, which is almost twice more precise than the previous KLOE result. The combination of these two measurements gives $A_S = (-3.8 \pm 5.0_{stat} \pm 2.6_{syst}) \times 10^{-3}$ and, together with the asymmetry of the $K_L$ semileptonic decay, provides significant tests of the CPT symmetry. The obtained results are in agreement with CPT invariance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.08654v2-abstract-full').style.display = 'none'; document.getElementById('1806.08654v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">submitted to JHEP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.03085">arXiv:1711.03085</a> <span> [<a href="https://arxiv.org/pdf/1711.03085">pdf</a>, <a href="https://arxiv.org/format/1711.03085">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Combination of KLOE $蟽\big(e^+e^-\rightarrow蟺^+蟺^-纬(纬)\big)$ measurements and determination of $a_渭^{蟺^+蟺^-}$ in the energy range $0.10 < s < 0.95$ GeV$^2$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+T+K">The KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a> , et al. (41 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1711.03085v2-abstract-short" style="display: inline;"> The three precision measurements of the cross section $蟽\big(e^+e^-\rightarrow蟺^+蟺^-纬(纬)\big)$ using initial state radiation by the KLOE collaboration provide an important input for the prediction of the hadronic contribution to the anomalous magnetic moment of the muon. These measurements are correlated for both statistical and systematic uncertainties and, therefore, the simultaneous use of thes… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.03085v2-abstract-full').style.display = 'inline'; document.getElementById('1711.03085v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.03085v2-abstract-full" style="display: none;"> The three precision measurements of the cross section $蟽\big(e^+e^-\rightarrow蟺^+蟺^-纬(纬)\big)$ using initial state radiation by the KLOE collaboration provide an important input for the prediction of the hadronic contribution to the anomalous magnetic moment of the muon. These measurements are correlated for both statistical and systematic uncertainties and, therefore, the simultaneous use of these measurements requires covariance matrices that fully describe the correlations. We present the construction of these covariance matrices and use them to determine a combined KLOE measurement for $蟽\big(e^+e^-\rightarrow蟺^+蟺^-纬(纬)\big)$. We find, from this combination, a two-pion contribution to the muon magnetic anomaly in the energy range $0.10 < s < 0.95$ GeV$^2$ of $a_渭^{蟺^+蟺^-} = (489.8 \pm 1.7_{\rm stat} \pm 4.8_{\rm sys} ) \times 10^{-10}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.03085v2-abstract-full').style.display = 'none'; document.getElementById('1711.03085v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 8 figures. Version as published in JHEP 1803 (2018) 173</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1609.06631">arXiv:1609.06631</a> <span> [<a href="https://arxiv.org/pdf/1609.06631">pdf</a>, <a href="https://arxiv.org/format/1609.06631">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2016.12.016">10.1016/j.physletb.2016.12.016 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the running of the fine structure constant below 1 GeV with the KLOE Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+T+K">The KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A9%2C+E">E. Dan茅</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (42 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1609.06631v2-abstract-short" style="display: inline;"> We have measured the running of the effective QED coupling constant $伪(s)$ in the time-like region $0.6<\sqrt s< 0.975$ GeV with the KLOE detector at DA$桅$NE using the Initial State Radiation process $e^+e^-\to渭^+ 渭^-纬$. It represents the first measurement of the running of $伪(s)$ in this energy region. Our results show a more than 5$蟽$ significance of the hadronic contribution to the running of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.06631v2-abstract-full').style.display = 'inline'; document.getElementById('1609.06631v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1609.06631v2-abstract-full" style="display: none;"> We have measured the running of the effective QED coupling constant $伪(s)$ in the time-like region $0.6<\sqrt s< 0.975$ GeV with the KLOE detector at DA$桅$NE using the Initial State Radiation process $e^+e^-\to渭^+ 渭^-纬$. It represents the first measurement of the running of $伪(s)$ in this energy region. Our results show a more than 5$蟽$ significance of the hadronic contribution to the running of $伪(s)$, which is the strongest direct evidence both in time- and space-like regions achieved in a single measurement. By using the $e^+e^-\to蟺^+蟺^-$ cross section measured by KLOE, the real and imaginary part of the shift $螖伪(s)$ has been extracted. By a fit of the real part of $螖伪(s)$ and assuming the lepton universality the branching ratio $BR(蠅\to渭^+渭^-) = (6.6\pm1.4_{stat}\pm1.7_{syst})\cdot 10^{-5} $ has been determined. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.06631v2-abstract-full').style.display = 'none'; document.getElementById('1609.06631v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 September, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">19 pages, 8 figures, version accepted for publication in Phys. Lett. B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1608.08632">arXiv:1608.08632</a> <span> [<a href="https://arxiv.org/pdf/1608.08632">pdf</a>, <a href="https://arxiv.org/format/1608.08632">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Dark Sectors 2016 Workshop: Community Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+J">Jim Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglieri%2C+M">Marco Battaglieri</a>, <a href="/search/hep-ex?searchtype=author&query=Echenard%2C+B">Bertrand Echenard</a>, <a href="/search/hep-ex?searchtype=author&query=Essig%2C+R">Rouven Essig</a>, <a href="/search/hep-ex?searchtype=author&query=Graham%2C+M">Matthew Graham</a>, <a href="/search/hep-ex?searchtype=author&query=Izaguirre%2C+E">Eder Izaguirre</a>, <a href="/search/hep-ex?searchtype=author&query=Jaros%2C+J">John Jaros</a>, <a href="/search/hep-ex?searchtype=author&query=Krnjaic%2C+G">Gordan Krnjaic</a>, <a href="/search/hep-ex?searchtype=author&query=Mardon%2C+J">Jeremy Mardon</a>, <a href="/search/hep-ex?searchtype=author&query=Morrissey%2C+D">David Morrissey</a>, <a href="/search/hep-ex?searchtype=author&query=Nelson%2C+T">Tim Nelson</a>, <a href="/search/hep-ex?searchtype=author&query=Perelstein%2C+M">Maxim Perelstein</a>, <a href="/search/hep-ex?searchtype=author&query=Pyle%2C+M">Matt Pyle</a>, <a href="/search/hep-ex?searchtype=author&query=Ritz%2C+A">Adam Ritz</a>, <a href="/search/hep-ex?searchtype=author&query=Schuster%2C+P">Philip Schuster</a>, <a href="/search/hep-ex?searchtype=author&query=Shuve%2C+B">Brian Shuve</a>, <a href="/search/hep-ex?searchtype=author&query=Toro%2C+N">Natalia Toro</a>, <a href="/search/hep-ex?searchtype=author&query=Van+De+Water%2C+R+G">Richard G Van De Water</a>, <a href="/search/hep-ex?searchtype=author&query=Akerib%2C+D">Daniel Akerib</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+H">Haipeng An</a>, <a href="/search/hep-ex?searchtype=author&query=Aniol%2C+K">Konrad Aniol</a>, <a href="/search/hep-ex?searchtype=author&query=Arnquist%2C+I+J">Isaac J. Arnquist</a>, <a href="/search/hep-ex?searchtype=author&query=Asner%2C+D+M">David M. Asner</a>, <a href="/search/hep-ex?searchtype=author&query=Back%2C+H+O">Henning O. Back</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+K">Keith Baker</a> , et al. (179 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="1608.08632v1-abstract-short" style="display: inline;"> This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the weak-scale, the status of this broad international field, the important milestones motivating future exploration, and promising experimental opportunities to reach these milestones over the next 5-10 years. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1608.08632v1-abstract-full" style="display: none;"> This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the weak-scale, the status of this broad international field, the important milestones motivating future exploration, and promising experimental opportunities to reach these milestones over the next 5-10 years. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.08632v1-abstract-full').style.display = 'none'; document.getElementById('1608.08632v1-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 August, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">66 pages, 15 figures, 3 tables. Workshop website and agenda: http://www-conf.slac.stanford.edu/darksectors2016/ https://indico.cern.ch/event/507783/ Editors: J. Alexander, M. Battaglieri, B. Echenard, R. Essig, M. Graham, E. Izaguirre, J. Jaros, G. Krnjaic, J. Mardon, D. Morrissey, T. Nelson, M. Perelstein, M. Pyle, A. Ritz, P. Schuster, B. Shuve, N. Toro, R. Van De Water</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1603.06086">arXiv:1603.06086</a> <span> [<a href="https://arxiv.org/pdf/1603.06086">pdf</a>, <a href="https://arxiv.org/format/1603.06086">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2016.04.019">10.1016/j.physletb.2016.04.019 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Limit on the production of a new vector boson in $\mathrm{e^+ e^-}\rightarrow {\rm U}纬$, U$\rightarrow 蟺^+蟺^-$ with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (41 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1603.06086v1-abstract-short" style="display: inline;"> The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motivates searches in the mass range below 1 GeV. We present a search for such a particle, the dark photon, in ${\rm e^+ e^-}\rightarrow {\rm U}纬$, U$\rightarrow 蟺^+蟺^-$ based on 28 million $\mathrm{e^+ e^-} \rightarrow 蟺^+ 蟺^-纬$ events collected at DA$桅$NE by the KLOE experiment. The $蟺^+ 蟺^-$ production by in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.06086v1-abstract-full').style.display = 'inline'; document.getElementById('1603.06086v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1603.06086v1-abstract-full" style="display: none;"> The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motivates searches in the mass range below 1 GeV. We present a search for such a particle, the dark photon, in ${\rm e^+ e^-}\rightarrow {\rm U}纬$, U$\rightarrow 蟺^+蟺^-$ based on 28 million $\mathrm{e^+ e^-} \rightarrow 蟺^+ 蟺^-纬$ events collected at DA$桅$NE by the KLOE experiment. The $蟺^+ 蟺^-$ production by initial-state radiation compensates for a loss of sensitivity of previous KLOE ${\rm U} \rightarrow \mathrm{e^+ e^-}$, $渭^+渭^-$ searches due to the small branching ratios in the $蟻-蠅$ resonance region. We found no evidence for a signal and set a limit at 90\% CL on the mixing strength between the photon and the dark photon, $\varepsilon^2$, in the U mass range between $527$ and $987$~MeV. Above 700 MeV this new limit is more stringent than previous ones. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.06086v1-abstract-full').style.display = 'none'; document.getElementById('1603.06086v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 March, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 9 figures, 1 table, submitted to Phys. Lett. B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 757 (2016) pp. 356-361 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.06985">arXiv:1601.06985</a> <span> [<a href="https://arxiv.org/pdf/1601.06985">pdf</a>, <a href="https://arxiv.org/format/1601.06985">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Precision measurement of the $畏\to蟺^+蟺^-蟺^0$ Dalitz plot distribution with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A9%2C+E">E. Dan茅</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1601.06985v1-abstract-short" style="display: inline;"> Using $1.6$ fb$^{-1}$ of $e^+ e^-\to蠁\to畏纬$ data collected with the KLOE detector at DA$桅$NE, the Dalitz plot distribution for the $畏\to 蟺^+ 蟺^- 蟺^0$ decay is studied with the world's largest sample of $\sim 4.7 \cdot 10^6$ events. The Dalitz plot density is parametrized as a polynomial expansion up to cubic terms in the normalized dimensionless variables $X$ and $Y$. The experiment is sensitive t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06985v1-abstract-full').style.display = 'inline'; document.getElementById('1601.06985v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.06985v1-abstract-full" style="display: none;"> Using $1.6$ fb$^{-1}$ of $e^+ e^-\to蠁\to畏纬$ data collected with the KLOE detector at DA$桅$NE, the Dalitz plot distribution for the $畏\to 蟺^+ 蟺^- 蟺^0$ decay is studied with the world's largest sample of $\sim 4.7 \cdot 10^6$ events. The Dalitz plot density is parametrized as a polynomial expansion up to cubic terms in the normalized dimensionless variables $X$ and $Y$. The experiment is sensitive to all charge conjugation conserving terms of the expansion, including a $gX^2Y$ term. The statistical uncertainty of all parameters is improved by a factor two with respect to earlier measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06985v1-abstract-full').style.display = 'none'; document.getElementById('1601.06985v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 9 figures, supplement: an ascii table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.06565">arXiv:1601.06565</a> <span> [<a href="https://arxiv.org/pdf/1601.06565">pdf</a>, <a href="https://arxiv.org/ps/1601.06565">ps</a>, <a href="https://arxiv.org/format/1601.06565">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2016.04.015">10.1016/j.physletb.2016.04.015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $蠁\to 蟺^0 e^+e^-$ transition form factor with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1601.06565v2-abstract-short" style="display: inline;"> A measurement of the vector to pseudoscalar conversion decay $蠁\to 蟺^0 e^+e^-$ with the KLOE experiment is presented. A sample of $\sim 9500$ signal events was selected from a data set of 1.7 fb$^{-1}$ of $e^+e^-$ collisions at $\sqrt{s} \sim m_蠁$ collected at the DA$桅$NE $e^+e^-$ collider. These events were used to obtain the first measurement of the transition form factor $| F_{蠁蟺^0}(q^2) |$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06565v2-abstract-full').style.display = 'inline'; document.getElementById('1601.06565v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.06565v2-abstract-full" style="display: none;"> A measurement of the vector to pseudoscalar conversion decay $蠁\to 蟺^0 e^+e^-$ with the KLOE experiment is presented. A sample of $\sim 9500$ signal events was selected from a data set of 1.7 fb$^{-1}$ of $e^+e^-$ collisions at $\sqrt{s} \sim m_蠁$ collected at the DA$桅$NE $e^+e^-$ collider. These events were used to obtain the first measurement of the transition form factor $| F_{蠁蟺^0}(q^2) |$ and a new measurement of the branching ratio of the decay: $\rm{BR}\,(蠁\to 蟺^0 e^+e^-) = (\,1.35 \pm 0.05^{\,\,+0.05}_{\,\,-0.10}\,) \times 10 ^{-5}$. The result improves significantly on previous measurements and is in agreement with theoretical predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06565v2-abstract-full').style.display = 'none'; document.getElementById('1601.06565v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 4 figures; matches published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B 757 (2016) 362 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.00740">arXiv:1509.00740</a> <span> [<a href="https://arxiv.org/pdf/1509.00740">pdf</a>, <a href="https://arxiv.org/format/1509.00740">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.10.003">10.1016/j.physletb.2015.10.003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Limit on the production of a low-mass vector boson in $\mathrm{e}^{+}\mathrm{e}^{-} \to \mathrm{U}纬$, $\mathrm{U} \to \mathrm{e}^{+}\mathrm{e}^{-}$ with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+B">B. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Agostini%2C+G">G. D'Agostini</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a> , et al. (39 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1509.00740v2-abstract-short" style="display: inline;"> The existence of a new force beyond the Standard Model is compelling because it could explain several striking astrophysical observations which fail standard interpretations. We searched for the light vector mediator of this dark force, the $\mathrm{U}$ boson, with the KLOE detector at the DA$桅$NE $\mathrm{e}^{+}\mathrm{e}^{-}$ collider. Using an integrated luminosity of 1.54 fb$^{-1}$, we studied… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.00740v2-abstract-full').style.display = 'inline'; document.getElementById('1509.00740v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.00740v2-abstract-full" style="display: none;"> The existence of a new force beyond the Standard Model is compelling because it could explain several striking astrophysical observations which fail standard interpretations. We searched for the light vector mediator of this dark force, the $\mathrm{U}$ boson, with the KLOE detector at the DA$桅$NE $\mathrm{e}^{+}\mathrm{e}^{-}$ collider. Using an integrated luminosity of 1.54 fb$^{-1}$, we studied the process $\mathrm{e}^{+}\mathrm{e}^{-} \to \mathrm{U}纬$, with $\mathrm{U} \to \mathrm{e}^{+}\mathrm{e}^{-}$, using radiative-return to search for a resonant peak in the dielectron invariant-mass distribution. We did not find evidence for a signal, and set a 90\%~CL upper limit on the mixing strength between the Standard Model photon and the dark photon, $\varepsilon^2$, at $10^{-6}$--$10^{-4}$ in the 5--520~MeV/c$^2$ mass range. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.00740v2-abstract-full').style.display = 'none'; document.getElementById('1509.00740v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 October, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1501.06795">arXiv:1501.06795</a> <span> [<a href="https://arxiv.org/pdf/1501.06795">pdf</a>, <a href="https://arxiv.org/ps/1501.06795">ps</a>, <a href="https://arxiv.org/format/1501.06795">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.06.015">10.1016/j.physletb.2015.06.015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for dark Higgsstrahlung in e+ e- -> mu+ mu- and missing energy events with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%27%2C+E">E. Dane'</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Felici%2C+G">G. Felici</a>, <a href="/search/hep-ex?searchtype=author&query=Fiore%2C+S">S. Fiore</a> , et al. (34 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1501.06795v1-abstract-short" style="display: inline;"> We searched for evidence of a Higgsstrahlung process in a secluded sector, leading to a final state with a dark photon U and a dark Higgs boson h', with the KLOE detector at DAFNE. We investigated the case of h' lighter than U, with U decaying into a muon pair and h' producing a missing energy signature. We found no evidence of the process and set upper limits to its parameters in the range 2m_mu<… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.06795v1-abstract-full').style.display = 'inline'; document.getElementById('1501.06795v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1501.06795v1-abstract-full" style="display: none;"> We searched for evidence of a Higgsstrahlung process in a secluded sector, leading to a final state with a dark photon U and a dark Higgs boson h', with the KLOE detector at DAFNE. We investigated the case of h' lighter than U, with U decaying into a muon pair and h' producing a missing energy signature. We found no evidence of the process and set upper limits to its parameters in the range 2m_mu<m_U<1000 MeV, m_h'<m_U. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.06795v1-abstract-full').style.display = 'none'; document.getElementById('1501.06795v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 January, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 7 figures, submitted to Physics Letters B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1501.04333">arXiv:1501.04333</a> <span> [<a href="https://arxiv.org/pdf/1501.04333">pdf</a>, <a href="https://arxiv.org/ps/1501.04333">ps</a>, <a href="https://arxiv.org/format/1501.04333">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey 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/PhysRevC.91.042201">10.1103/PhysRevC.91.042201 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Evidence for narrow resonant structures at $W \approx 1.68$ and $W \approx 1.72$ GeV in real Compton scattering off the proton </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Kuznetsov%2C+V">V. Kuznetsov</a>, <a href="/search/hep-ex?searchtype=author&query=Mammoliti%2C+F">F. Mammoliti</a>, <a href="/search/hep-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a>, <a href="/search/hep-ex?searchtype=author&query=Gervino%2C+G">G. Gervino</a>, <a href="/search/hep-ex?searchtype=author&query=Ghio%2C+F">F. Ghio</a>, <a href="/search/hep-ex?searchtype=author&query=Giardina%2C+G">G. Giardina</a>, <a href="/search/hep-ex?searchtype=author&query=Kim%2C+W">W. Kim</a>, <a href="/search/hep-ex?searchtype=author&query=Mandaglio%2C+G">G. Mandaglio</a>, <a href="/search/hep-ex?searchtype=author&query=Sperduto%2C+M+L">M. L. Sperduto</a>, <a href="/search/hep-ex?searchtype=author&query=Sutera%2C+C">C. Sutera</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1501.04333v2-abstract-short" style="display: inline;"> First measurement of the beam asymmetry $危$ for Compton scattering off the proton in the energy range $E_纬=0.85 - 1.25$ GeV is presented. The data reveals two narrow structures at $E_纬= 1.036$ and $E_纬=1.119$ GeV. They may signal narrow resonances with masses near $1.68$ and $1.72$ GeV, or they may be generated by the sub-threshold $K螞$ and $蠅p$ production. Their decisive identification requires a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.04333v2-abstract-full').style.display = 'inline'; document.getElementById('1501.04333v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1501.04333v2-abstract-full" style="display: none;"> First measurement of the beam asymmetry $危$ for Compton scattering off the proton in the energy range $E_纬=0.85 - 1.25$ GeV is presented. The data reveals two narrow structures at $E_纬= 1.036$ and $E_纬=1.119$ GeV. They may signal narrow resonances with masses near $1.68$ and $1.72$ GeV, or they may be generated by the sub-threshold $K螞$ and $蠅p$ production. Their decisive identification requires additional theoretical and experimental efforts. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.04333v2-abstract-full').style.display = 'none'; document.getElementById('1501.04333v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 April, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 January, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review C 91, 042201(R) (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1409.4582">arXiv:1409.4582</a> <span> [<a href="https://arxiv.org/pdf/1409.4582">pdf</a>, <a href="https://arxiv.org/ps/1409.4582">ps</a>, <a href="https://arxiv.org/format/1409.4582">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2015.01.011">10.1016/j.physletb.2015.01.011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of Dalitz decay phi -> eta e+e- with KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%27%2C+E">E. Dane'</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a>, <a href="/search/hep-ex?searchtype=author&query=Fanizzi%2C+G">G. Fanizzi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a> , et al. (40 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1409.4582v1-abstract-short" style="display: inline;"> We have studied the vector to pseudoscalar conversion decay phi -> eta e+e-, with eta -> pi0pi0pi0, with the KLOE detector at DAPHNE. The data set of 1.7 fb-1 of e+e- collisions at sqrt(s)~Mphi contains a clear conversion decay signal of ~31,000 events from which we measured a value of BR(phi -> eta e+e-)=(1.075+-0.007+-0.038)x10-4. The same sample is used to determine the transition form factor b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.4582v1-abstract-full').style.display = 'inline'; document.getElementById('1409.4582v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1409.4582v1-abstract-full" style="display: none;"> We have studied the vector to pseudoscalar conversion decay phi -> eta e+e-, with eta -> pi0pi0pi0, with the KLOE detector at DAPHNE. The data set of 1.7 fb-1 of e+e- collisions at sqrt(s)~Mphi contains a clear conversion decay signal of ~31,000 events from which we measured a value of BR(phi -> eta e+e-)=(1.075+-0.007+-0.038)x10-4. The same sample is used to determine the transition form factor by a fit to the e+e- invariant mass spectrum, obtaining b(phi eta) =(1.17 +- 0.10 + 0.07) GeV-2, that improves by a factor of five the precision of the previous measurement and is in good agreement with VMD expectations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.4582v1-abstract-full').style.display = 'none'; document.getElementById('1409.4582v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 6 figures, submitted to PLB</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1404.7772">arXiv:1404.7772</a> <span> [<a href="https://arxiv.org/pdf/1404.7772">pdf</a>, <a href="https://arxiv.org/ps/1404.7772">ps</a>, <a href="https://arxiv.org/format/1404.7772">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.08.005">10.1016/j.physletb.2014.08.005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for light vector boson production in $e^+e^- \rightarrow 渭^+ 渭^- 纬$ interactions with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%C3%A5hl%2C+L+C">L. Caldeira Balkest氓hl</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a>, <a href="/search/hep-ex?searchtype=author&query=Fanizzi%2C+G">G. Fanizzi</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a> , et al. (44 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1404.7772v2-abstract-short" style="display: inline;"> We have searched for a light vector boson $U$, the possible carrier of a "dark force", with the KLOE detector at the DA$桅$NE \epm\ collider, motivated by astrophysical evidence for the presence of dark matter in the universe. Using \epm\ collisions collected with an integrated luminosity of $239.3$~pb$^{-1}$, we look for a dimuon mass peak in the reaction \epm\to$渭^+ 渭^-$\gam, corresponding to the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.7772v2-abstract-full').style.display = 'inline'; document.getElementById('1404.7772v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1404.7772v2-abstract-full" style="display: none;"> We have searched for a light vector boson $U$, the possible carrier of a "dark force", with the KLOE detector at the DA$桅$NE \epm\ collider, motivated by astrophysical evidence for the presence of dark matter in the universe. Using \epm\ collisions collected with an integrated luminosity of $239.3$~pb$^{-1}$, we look for a dimuon mass peak in the reaction \epm\to$渭^+ 渭^-$\gam, corresponding to the decay $U\to渭^+渭^-$. We find no evidence for a $U$ vector boson signal. We set a 90\% CL upper limit for the mixing parameter squared between the photon and the $U$ boson of 1.6$\times$10$^{-5}$ to 8.6$\times$10$^{-7}$ for the mass region $520<m_{\rm U}<980$ MeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1404.7772v2-abstract-full').style.display = 'none'; document.getElementById('1404.7772v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 August, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 7 figures, version accepted for publication in Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 736, 459 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1312.6818">arXiv:1312.6818</a> <span> [<a href="https://arxiv.org/pdf/1312.6818">pdf</a>, <a href="https://arxiv.org/ps/1312.6818">ps</a>, <a href="https://arxiv.org/format/1312.6818">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.01.026">10.1016/j.physletb.2014.01.026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Test of CPT and Lorentz symmetry in entangled neutral kaons with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dan%C3%A8%2C+E">E. Dan猫</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Cicco%2C+A">A. Di Cicco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a> , et al. (49 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1312.6818v2-abstract-short" style="display: inline;"> Neutral kaon pairs produced in phi decays in anti-symmetric entangled state can be exploited to search for violation of CPT symmetry and Lorentz invariance. We present an analysis of the CP-violating process phi->K_S K_L->pi+pi-pi+pi- based on 1.7 fb-1 of data collected by the KLOE experiment at the Frascati phi-factory DAFNE. The data are used to perform a measurement of the CPT-violating paramet… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.6818v2-abstract-full').style.display = 'inline'; document.getElementById('1312.6818v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1312.6818v2-abstract-full" style="display: none;"> Neutral kaon pairs produced in phi decays in anti-symmetric entangled state can be exploited to search for violation of CPT symmetry and Lorentz invariance. We present an analysis of the CP-violating process phi->K_S K_L->pi+pi-pi+pi- based on 1.7 fb-1 of data collected by the KLOE experiment at the Frascati phi-factory DAFNE. The data are used to perform a measurement of the CPT-violating parameters Delta_amu for neutral kaons in the contest of the Standard Model Extension framework. The parameters measured in the reference frame of the fixed stars are: Delta_ao = (-6.0 +- 7.7_{stat} +- 3.1_{syst}) x 10^{-18} GeV Delta_ax = ( 0.9 +- 1.5_{stat} +- 0.6_{syst}) x 10^{-18} GeV Delta_ay = (-2.0 +- 1.5_{stat} +- 0.5_{syst}) x 10^{-18} GeV Delta_az = ( 3.1 +- 1.7_{stat} +- 0.5_{syst}) x 10^{-18} GeV These are presently the most precise measurements in the quark sector of the Standard Model Extension. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.6818v2-abstract-full').style.display = 'none'; document.getElementById('1312.6818v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 6 figures, added few typo corrections</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B 730 (2014) 89-94 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1307.7967">arXiv:1307.7967</a> <span> [<a href="https://arxiv.org/pdf/1307.7967">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> IRIDE White Book, An Interdisciplinary Research Infrastructure based on Dual Electron linacs&lasers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Alesini%2C+D">D. Alesini</a>, <a href="/search/hep-ex?searchtype=author&query=Alessandroni%2C+M">M. Alessandroni</a>, <a href="/search/hep-ex?searchtype=author&query=Anania%2C+M+P">M. P. Anania</a>, <a href="/search/hep-ex?searchtype=author&query=Andreas%2C+S">S. Andreas</a>, <a href="/search/hep-ex?searchtype=author&query=Angelone%2C+M">M. Angelone</a>, <a href="/search/hep-ex?searchtype=author&query=Arcovito%2C+A">A. Arcovito</a>, <a href="/search/hep-ex?searchtype=author&query=Arnesano%2C+F">F. Arnesano</a>, <a href="/search/hep-ex?searchtype=author&query=Artioli%2C+M">M. Artioli</a>, <a href="/search/hep-ex?searchtype=author&query=Avaldi%2C+L">L. Avaldi</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Bacci%2C+A">A. Bacci</a>, <a href="/search/hep-ex?searchtype=author&query=Balerna%2C+A">A. Balerna</a>, <a href="/search/hep-ex?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/hep-ex?searchtype=author&query=Bedogni%2C+R">R. Bedogni</a>, <a href="/search/hep-ex?searchtype=author&query=Bellaveglia%2C+M">M. Bellaveglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenga%2C+F">F. Bencivenga</a>, <a href="/search/hep-ex?searchtype=author&query=Benfatto%2C+M">M. Benfatto</a>, <a href="/search/hep-ex?searchtype=author&query=Biedron%2C+S">S. Biedron</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bolognesi%2C+M">M. Bolognesi</a>, <a href="/search/hep-ex?searchtype=author&query=Bolognesi%2C+P">P. Bolognesi</a>, <a href="/search/hep-ex?searchtype=author&query=Boni%2C+R">R. Boni</a>, <a href="/search/hep-ex?searchtype=author&query=Bonifacio%2C+R">R. Bonifacio</a>, <a href="/search/hep-ex?searchtype=author&query=Boscolo%2C+M">M. Boscolo</a>, <a href="/search/hep-ex?searchtype=author&query=Boscherini%2C+F">F. Boscherini</a> , et al. (189 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="1307.7967v1-abstract-short" style="display: inline;"> This report describes the scientific aims and potentials as well as the preliminary technical design of IRIDE, an innovative tool for multi-disciplinary investigations in a wide field of scientific, technological and industrial applications. IRIDE will be a high intensity 'particle factory', based on a combination of a high duty cycle radio-frequency superconducting electron linac and of high ener… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.7967v1-abstract-full').style.display = 'inline'; document.getElementById('1307.7967v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1307.7967v1-abstract-full" style="display: none;"> This report describes the scientific aims and potentials as well as the preliminary technical design of IRIDE, an innovative tool for multi-disciplinary investigations in a wide field of scientific, technological and industrial applications. IRIDE will be a high intensity 'particle factory', based on a combination of a high duty cycle radio-frequency superconducting electron linac and of high energy lasers. Conceived to provide unique research possibilities for particle physics, for condensed matter physics, chemistry and material science, for structural biology and industrial applications, IRIDE will open completely new research possibilities and advance our knowledge in many branches of science and technology. IRIDE will contribute to open new avenues of discoveries and to address most important riddles: What does matter consist of? What is the structure of proteins that have a fundamental role in life processes? What can we learn from protein structure to improve the treatment of diseases and to design more efficient drugs? But also how does an electronic chip behave under the effect of radiations? How can the heat flow in a large heat exchanger be optimized? The scientific potential of IRIDE is far reaching and justifies the construction of such a large facility in Italy in synergy with the national research institutes and companies and in the framework of the European and international research. It will impact also on R&D work for ILC, FEL, and will be complementarity to other large scale accelerator projects. IRIDE is also intended to be realized in subsequent stages of development depending on the assigned priorities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.7967v1-abstract-full').style.display = 'none'; document.getElementById('1307.7967v1-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 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">270 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1306.5740">arXiv:1306.5740</a> <span> [<a href="https://arxiv.org/pdf/1306.5740">pdf</a>, <a href="https://arxiv.org/format/1306.5740">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Recent results on hadron physics at KLOE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%2C+L+C">L. Caldeira Balkest</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a> , et al. (49 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1306.5740v1-abstract-short" style="display: inline;"> One of the basic motivations of the KLOE and KLOE-2 collaborations is the test of fundamental symmetries and the search for phenomena beyond the Standard Model via the hadronic and leptonic decays of ground-state mesons and via their production in the fusion of virtual gamma quanta exchanged between colliding electrons and positrons. This contribution includes brief description of results of recen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.5740v1-abstract-full').style.display = 'inline'; document.getElementById('1306.5740v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1306.5740v1-abstract-full" style="display: none;"> One of the basic motivations of the KLOE and KLOE-2 collaborations is the test of fundamental symmetries and the search for phenomena beyond the Standard Model via the hadronic and leptonic decays of ground-state mesons and via their production in the fusion of virtual gamma quanta exchanged between colliding electrons and positrons. This contribution includes brief description of results of recent analysis of the KLOE data aimed at (i) the search for the dark matter boson, (ii) determination of the hadronic and light-by-light contributions to the g-2 muon anomaly and (iii) tests of QCD anomalies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1306.5740v1-abstract-full').style.display = 'none'; document.getElementById('1306.5740v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 June, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, Proceedings of the 48th Rencontres de Moriond "QCD and High Energy Interactions", La Thuile, Italy, March 9-16, 2013</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1301.7623">arXiv:1301.7623</a> <span> [<a href="https://arxiv.org/pdf/1301.7623">pdf</a>, <a href="https://arxiv.org/ps/1301.7623">ps</a>, <a href="https://arxiv.org/format/1301.7623">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2013.05.008">10.1016/j.physletb.2013.05.008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A new limit on the CP violating decay KS -> 3pi0 with the KLOE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a> , et al. (48 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1301.7623v2-abstract-short" style="display: inline;"> We have carried out a new direct search for the CP violating decay KS -> 3pi0 with 1.7 fb^-1 of e+e- collisions collected by the KLOE detector at the phi-factory DAFNE. We have searched for this decay in a sample of about 5.9 x 10^8 KS KL events tagging the KS by means of the KL interaction in the calorimeter and requiring six prompt photons. With respect to our previous search, the analysis has b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.7623v2-abstract-full').style.display = 'inline'; document.getElementById('1301.7623v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1301.7623v2-abstract-full" style="display: none;"> We have carried out a new direct search for the CP violating decay KS -> 3pi0 with 1.7 fb^-1 of e+e- collisions collected by the KLOE detector at the phi-factory DAFNE. We have searched for this decay in a sample of about 5.9 x 10^8 KS KL events tagging the KS by means of the KL interaction in the calorimeter and requiring six prompt photons. With respect to our previous search, the analysis has been improved by increasing of a factor four the tagged sample and by a more effective background rejection of fake KS tags and spurious clusters. We find no candidates in data and simulated background samples, while we expect 0.12 standard model events. Normalizing to the number of KS -> 2pi0 events in the same sample, we set the upper limit on BR(KS -> 3pi0 < 2.6 x 10^-8 at 90% C.L., five times lower than the previous limit. We also set the upper limit on the eta_000 parameter, |eta_000 | < 0.0088 at 90% C.L., improving by a factor two the latest direct measurement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.7623v2-abstract-full').style.display = 'none'; document.getElementById('1301.7623v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted for publication in Physics Letters B (15 pages, 13 figures)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 723 (2013), pp. 54-60 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1212.4524">arXiv:1212.4524</a> <span> [<a href="https://arxiv.org/pdf/1212.4524">pdf</a>, <a href="https://arxiv.org/ps/1212.4524">ps</a>, <a href="https://arxiv.org/format/1212.4524">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2013.02.029">10.1016/j.physletb.2013.02.029 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision measurement of $蟽(e^+e^-\rightarrow蟺^+蟺^-纬)/蟽(e^+e^-\rightarrow 渭^+渭^-纬)$ and determination of the $蟺^+蟺^-$ contribution to the muon anomaly with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=KLOE"> KLOE</a>, <a href="/search/hep-ex?searchtype=author&query=Collaborations%2C+K">KLOE-2 Collaborations</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestahl%2C+L+C">L. Caldeira Balkestahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Curciarello%2C+F">F. Curciarello</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%27%2C+E">E. Dane'</a>, <a href="/search/hep-ex?searchtype=author&query=De+Leo%2C+V">V. De Leo</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a> , et al. (52 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1212.4524v2-abstract-short" style="display: inline;"> We have measured the ratio $蟽(e^+e^-\rightarrow蟺^+蟺^-纬)/蟽(e^+e^-\rightarrow 渭^+渭^-纬)$, with the KLOE detector at DA$桅$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $蟽(e^+e^-\rightarrow蟺^+蟺^-)$. From the cross section we determine the pion form factor $|F_蟺|^2$ and the two-pion contribution to the muon anomaly $a_渭$ for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1212.4524v2-abstract-full').style.display = 'inline'; document.getElementById('1212.4524v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1212.4524v2-abstract-full" style="display: none;"> We have measured the ratio $蟽(e^+e^-\rightarrow蟺^+蟺^-纬)/蟽(e^+e^-\rightarrow 渭^+渭^-纬)$, with the KLOE detector at DA$桅$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $蟽(e^+e^-\rightarrow蟺^+蟺^-)$. From the cross section we determine the pion form factor $|F_蟺|^2$ and the two-pion contribution to the muon anomaly $a_渭$ for $0.592<M_{蟺蟺}<0.975$ GeV, $螖^{蟺蟺} a_渭$= $({\rm 385.1\pm1.1_{stat}\pm2.7_{sys+theo}})\times10^{-10}$. This result confirms the current discrepancy between the Standard Model calculation and the experimental measurement of the muon anomaly. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1212.4524v2-abstract-full').style.display = 'none'; document.getElementById('1212.4524v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 February, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 December, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 8 figures, minor text corrections, one table added, version to appear on Physics Letters B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1211.1845">arXiv:1211.1845</a> <span> [<a href="https://arxiv.org/pdf/1211.1845">pdf</a>, <a href="https://arxiv.org/ps/1211.1845">ps</a>, <a href="https://arxiv.org/format/1211.1845">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2013)119">10.1007/JHEP01(2013)119 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of 畏 meson production in 纬纬 interactions and 螕(畏-->纬纬) with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestaahl%2C+L+C">L. Caldeira Balkestaahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a> , et al. (47 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1211.1845v2-abstract-short" style="display: inline;"> We present a measurement of 畏 meson production in photon-photon interactions produced by electron-positron beams colliding with \sqrt{s}=1 GeV. The measurement is done with the KLOE detector at the 蠁-factory DA桅NE with an integrated luminosity of 0.24 fb^{-1}. The e^+e^- --> e^+e^-畏 cross section is measured without detecting the outgoing electron and positron, selecting the decays 畏-->蟺^+蟺^-蟺^0 a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.1845v2-abstract-full').style.display = 'inline'; document.getElementById('1211.1845v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1211.1845v2-abstract-full" style="display: none;"> We present a measurement of 畏 meson production in photon-photon interactions produced by electron-positron beams colliding with \sqrt{s}=1 GeV. The measurement is done with the KLOE detector at the 蠁-factory DA桅NE with an integrated luminosity of 0.24 fb^{-1}. The e^+e^- --> e^+e^-畏 cross section is measured without detecting the outgoing electron and positron, selecting the decays 畏-->蟺^+蟺^-蟺^0 and 畏-->蟺^0蟺^0蟺^0. The most relevant background is due to e^+e^- --> 畏纬 when the monochromatic photon escapes detection. The cross section for this process is measured as 蟽(e^+e^- -->畏纬) = (856 \pm 8_{stat} \pm 16_{syst}) pb. The combined result for the e^+e^- -->e^+e^-畏 cross section is 蟽(e^+e^- -->e^+e^-畏) = (32.72 \pm 1.27_{stat} \pm 0.70_{syst}) pb. From this we derive the partial width 螕(畏-->纬纬) = (520 \pm 20_{stat} \pm 13_{syst}) eV. This is in agreement with the world average and is the most precise measurement to date. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.1845v2-abstract-full').style.display = 'none'; document.getElementById('1211.1845v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 December, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Version accepted by JHEP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1210.3927">arXiv:1210.3927</a> <span> [<a href="https://arxiv.org/pdf/1210.3927">pdf</a>, <a href="https://arxiv.org/ps/1210.3927">ps</a>, <a href="https://arxiv.org/format/1210.3927">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2013.01.067">10.1016/j.physletb.2013.01.067 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Limit on the production of a light vector gauge boson in phi meson decays with the KLOE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+K">KLOE-2 Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkestaahl%2C+L+C">L. Caldeira Balkestaahl</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a>, <a href="/search/hep-ex?searchtype=author&query=Erriquez%2C+O">O. Erriquez</a> , et al. (47 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1210.3927v2-abstract-short" style="display: inline;"> We present a new limit on the production of a light dark-force mediator with the KLOE detector at DAPHNE. This boson, called U, has been searched for in the decay phi --> eta U, U --> e+ e-, analyzing the decay eta --> pi0 pi0 pi0 in a data sample of 1.7 fb-1. No structures are observed in the e+e- invariant mass distribution over the background. This search is combined with a previous result obta… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.3927v2-abstract-full').style.display = 'inline'; document.getElementById('1210.3927v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1210.3927v2-abstract-full" style="display: none;"> We present a new limit on the production of a light dark-force mediator with the KLOE detector at DAPHNE. This boson, called U, has been searched for in the decay phi --> eta U, U --> e+ e-, analyzing the decay eta --> pi0 pi0 pi0 in a data sample of 1.7 fb-1. No structures are observed in the e+e- invariant mass distribution over the background. This search is combined with a previous result obtained from the decay eta --> pi+ pi- pi0, increasing the sensitivity. We set an upper limit at 90% C.L. on the ratio between the U boson coupling constant and the fine structure constant of alpha'/alpha < 1.7x10^-5 for 30<M_U<400 MeV and alpha'/alpha < 8x10^-6 for the sub-region 50<M_U<210 MeV. This result assumes the Vector Meson Dominance expectations for the phietagamma^* transition form factor. The dependence of this limit on the transition form factor has also been studied. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.3927v2-abstract-full').style.display = 'none'; document.getElementById('1210.3927v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 October, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 7 figures, updated PLB version</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1209.4611">arXiv:1209.4611</a> <span> [<a href="https://arxiv.org/pdf/1209.4611">pdf</a>, <a href="https://arxiv.org/ps/1209.4611">ps</a>, <a href="https://arxiv.org/format/1209.4611">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2012.11.032">10.1016/j.physletb.2012.11.032 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of 螕(畏-> 蟺^+蟺^-纬)/螕(畏-> 蟺^+蟺^-蟺^0) with the KLOE Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Babusci%2C+D">D. Babusci</a>, <a href="/search/hep-ex?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/hep-ex?searchtype=author&query=Balwierz-Pytko%2C+I">I. Balwierz-Pytko</a>, <a href="/search/hep-ex?searchtype=author&query=Bencivenni%2C+G">G. Bencivenni</a>, <a href="/search/hep-ex?searchtype=author&query=Bini%2C+C">C. Bini</a>, <a href="/search/hep-ex?searchtype=author&query=Bloise%2C+C">C. Bloise</a>, <a href="/search/hep-ex?searchtype=author&query=Bocci%2C+V">V. Bocci</a>, <a href="/search/hep-ex?searchtype=author&query=Bossi%2C+F">F. Bossi</a>, <a href="/search/hep-ex?searchtype=author&query=Branchini%2C+P">P. Branchini</a>, <a href="/search/hep-ex?searchtype=author&query=Budano%2C+A">A. Budano</a>, <a href="/search/hep-ex?searchtype=author&query=Balkest%2C+L+C">L. Caldeira Balkest</a>, <a href="/search/hep-ex?searchtype=author&query=Capon%2C+G">G. Capon</a>, <a href="/search/hep-ex?searchtype=author&query=Ceradini%2C+F">F. Ceradini</a>, <a href="/search/hep-ex?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a>, <a href="/search/hep-ex?searchtype=author&query=Czerwinski%2C+E">E. Czerwinski</a>, <a href="/search/hep-ex?searchtype=author&query=Dane%2C+E">E. Dane</a>, <a href="/search/hep-ex?searchtype=author&query=De+Lucia%2C+E">E. De Lucia</a>, <a href="/search/hep-ex?searchtype=author&query=De+Robertis%2C+G">G. De Robertis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Santis%2C+A">A. De Santis</a>, <a href="/search/hep-ex?searchtype=author&query=De+Simone%2C+P">P. De Simone</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Domenico%2C+A">A. Di Domenico</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Donato%2C+C">C. Di Donato</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Micco%2C+B">B. Di Micco</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Domenici%2C+D">D. Domenici</a> , et al. (49 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1209.4611v2-abstract-short" style="display: inline;"> The ratio R_畏=螕(畏-> 蟺^+蟺^-纬)/螕(畏-> 蟺^+蟺^-蟺^0) has been measured by analyzing 22 million 蠁\to 畏纬decays collected by the KLOE experiment at DA\PhiNE, corresponding to an integrated luminosity of 558 pb^{-1}. The 畏\to 蟺^+蟺^-纬proceeds both via the 蟻resonant contribution, and possibly a non-resonant direct term, connected to the box anomaly. Our result, R_畏= 0.1856\pm 0.0005_{stat} \pm 0.0028_{syst}, p… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.4611v2-abstract-full').style.display = 'inline'; document.getElementById('1209.4611v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1209.4611v2-abstract-full" style="display: none;"> The ratio R_畏=螕(畏-> 蟺^+蟺^-纬)/螕(畏-> 蟺^+蟺^-蟺^0) has been measured by analyzing 22 million 蠁\to 畏纬decays collected by the KLOE experiment at DA\PhiNE, corresponding to an integrated luminosity of 558 pb^{-1}. The 畏\to 蟺^+蟺^-纬proceeds both via the 蟻resonant contribution, and possibly a non-resonant direct term, connected to the box anomaly. Our result, R_畏= 0.1856\pm 0.0005_{stat} \pm 0.0028_{syst}, points out a sizable contribution of the direct term to the total width. The di-pion invariant mass for the 畏-> 蟺^+蟺^-纬decay could be described in a model-independent approach in terms of a single free parameter, 伪. The determined value of the parameter 伪is 伪= (1.32 \pm 0.08_{stat} +0.10/-0.09_{syst}\pm 0.02_{theo}) GeV^{-2} <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1209.4611v2-abstract-full').style.display = 'none'; document.getElementById('1209.4611v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 September, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Paper in press, accepted by PLB</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1005.5230">arXiv:1005.5230</a> <span> [<a href="https://arxiv.org/pdf/1005.5230">pdf</a>, <a href="https://arxiv.org/ps/1005.5230">ps</a>, <a href="https://arxiv.org/format/1005.5230">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="Atomic Physics">physics.atom-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.104.241601">10.1103/PhysRevLett.104.241601 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Limits on light-speed anisotropies from Compton scattering of high-energy electrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bocquet%2C+J+-">J. -P. Bocquet</a>, <a href="/search/hep-ex?searchtype=author&query=Moricciani%2C+D">D. Moricciani</a>, <a href="/search/hep-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a>, <a href="/search/hep-ex?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/hep-ex?searchtype=author&query=Casano%2C+L">L. Casano</a>, <a href="/search/hep-ex?searchtype=author&query=D%27Angelo%2C+A">A. D'Angelo</a>, <a href="/search/hep-ex?searchtype=author&query=Di+Salvo%2C+R">R. Di Salvo</a>, <a href="/search/hep-ex?searchtype=author&query=Fantini%2C+A">A. Fantini</a>, <a href="/search/hep-ex?searchtype=author&query=Franco%2C+D">D. Franco</a>, <a href="/search/hep-ex?searchtype=author&query=Gervino%2C+G">G. Gervino</a>, <a href="/search/hep-ex?searchtype=author&query=Ghio%2C+F">F. Ghio</a>, <a href="/search/hep-ex?searchtype=author&query=Giardina%2C+G">G. Giardina</a>, <a href="/search/hep-ex?searchtype=author&query=Girolami%2C+B">B. Girolami</a>, <a href="/search/hep-ex?searchtype=author&query=Giusa%2C+A">A. Giusa</a>, <a href="/search/hep-ex?searchtype=author&query=Gurzadyan%2C+V+G">V. G. Gurzadyan</a>, <a href="/search/hep-ex?searchtype=author&query=Kashin%2C+A">A. Kashin</a>, <a href="/search/hep-ex?searchtype=author&query=Knyazyan%2C+S">S. Knyazyan</a>, <a href="/search/hep-ex?searchtype=author&query=Lapik%2C+A">A. Lapik</a>, <a href="/search/hep-ex?searchtype=author&query=Lehnert%2C+R">R. Lehnert</a>, <a href="/search/hep-ex?searchtype=author&query=Sandri%2C+P+L">P. Levi Sandri</a>, <a href="/search/hep-ex?searchtype=author&query=Lleres%2C+A">A. Lleres</a>, <a href="/search/hep-ex?searchtype=author&query=Mammoliti%2C+F">F. Mammoliti</a>, <a href="/search/hep-ex?searchtype=author&query=Mandaglio%2C+G">G. Mandaglio</a>, <a href="/search/hep-ex?searchtype=author&query=Manganaro%2C+M">M. Manganaro</a>, <a href="/search/hep-ex?searchtype=author&query=Margarian%2C+A">A. Margarian</a> , et al. (13 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="1005.5230v2-abstract-short" style="display: inline;"> The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the energy of Compton-edge photons at the ESRF's GRAAL facility constrains such anisotropies representing the first non-threshold collision-kinematics study of Lorentz violation. When interpreted within the minimal Standard-Model Extension, this res… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1005.5230v2-abstract-full').style.display = 'inline'; document.getElementById('1005.5230v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1005.5230v2-abstract-full" style="display: none;"> The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the energy of Compton-edge photons at the ESRF's GRAAL facility constrains such anisotropies representing the first non-threshold collision-kinematics study of Lorentz violation. When interpreted within the minimal Standard-Model Extension, this result yields the two-sided limit of 1.6 x 10^{-14} at 95% confidence level on a combination of the parity-violating photon and electron coefficients kappa_{o+} and c. This new constraint provides an improvement over previous bounds by one order of magnitude. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1005.5230v2-abstract-full').style.display = 'none'; document.getElementById('1005.5230v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 June, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 May, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 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.Lett.104:241601,2010 </p> </li> </ol> <div class="is-hidden-tablet"> 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