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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/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Cavazza%2C+F">F. Cavazza</a>, <a href="/search/physics?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Gramegna%2C+F">F. Gramegna</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</a>, <a href="/search/physics?searchtype=author&query=Hatzifotiadou%2C+D">D. Hatzifotiadou</a>, <a href="/search/physics?searchtype=author&query=La+Rocca%2C+P">P. La Rocca</a>, <a href="/search/physics?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/2403.13034">arXiv:2403.13034</a> <span> [<a href="https://arxiv.org/pdf/2403.13034">pdf</a>, <a href="https://arxiv.org/format/2403.13034">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/19/06/T06005">10.1088/1748-0221/19/06/T06005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of silicon photomultipliers for the readout of a lead/scintillating-fiber calorimeter </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alemanno%2C+F">F. Alemanno</a>, <a href="/search/physics?searchtype=author&query=Bernardini%2C+P">P. Bernardini</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Matteis%2C+G">G. De Matteis</a>, <a href="/search/physics?searchtype=author&query=Martina%2C+L">L. Martina</a>, <a href="/search/physics?searchtype=author&query=Miccoli%2C+A">A. Miccoli</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">M. Panareo</a>, <a href="/search/physics?searchtype=author&query=Panetta%2C+M+P">M. P. Panetta</a>, <a href="/search/physics?searchtype=author&query=Pinto%2C+C">C. Pinto</a>, <a href="/search/physics?searchtype=author&query=Surdo%2C+A">A. Surdo</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="2403.13034v2-abstract-short" style="display: inline;"> The KLOE electromagnetic calorimeter is expected to be reused in the Near Detector complex of the DUNE experiment at Fermilab. The possible substitution of traditional Photomultiplier Tubes (PMTs) with Silicon Photomultipliers (SiPMs) in the refurbished calorimeter is the object of this investigation. A block of the KLOE lead-scintillating fiber calorimeter has been equipped with light guides and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.13034v2-abstract-full').style.display = 'inline'; document.getElementById('2403.13034v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.13034v2-abstract-full" style="display: none;"> The KLOE electromagnetic calorimeter is expected to be reused in the Near Detector complex of the DUNE experiment at Fermilab. The possible substitution of traditional Photomultiplier Tubes (PMTs) with Silicon Photomultipliers (SiPMs) in the refurbished calorimeter is the object of this investigation. A block of the KLOE lead-scintillating fiber calorimeter has been equipped with light guides and external trigger scintillators. The signals induced by cosmic rays and environmental radioactivity have been collected by SiPM arrays on one side of the calorimeter, and by conventional PMTs on the opposite side. Efficiency, stability, and timing resolution of SiPMs have been studied and compared with KLOE-PMTs performance. Conclusions about the convenience of substituting PMTs with SiPMs are drawn. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.13034v2-abstract-full').style.display = 'none'; document.getElementById('2403.13034v2-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> 18 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">Published in JINST</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.12865">arXiv:2310.12865</a> <span> [<a href="https://arxiv.org/pdf/2310.12865">pdf</a>, <a href="https://arxiv.org/format/2310.12865">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Performances of a new generation tracking detector: the MEG II cylindrical drfit chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Baldini%2C+A+M">A. M. Baldini</a>, <a href="/search/physics?searchtype=author&query=Benmansour%2C+H">H. Benmansour</a>, <a href="/search/physics?searchtype=author&query=Boca%2C+G">G. Boca</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cei%2C+F">F. Cei</a>, <a href="/search/physics?searchtype=author&query=Chiappini%2C+M">M. Chiappini</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">G. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Cuna%2C+F">F. Cuna</a>, <a href="/search/physics?searchtype=author&query=Francesconi%2C+M">M. Francesconi</a>, <a href="/search/physics?searchtype=author&query=Galli%2C+L">L. Galli</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">F. Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Grandoni%2C+E+G">E. G. Grandoni</a>, <a href="/search/physics?searchtype=author&query=Grassi%2C+M">M. Grassi</a>, <a href="/search/physics?searchtype=author&query=Hildebrandt%2C+M">M. Hildebrandt</a>, <a href="/search/physics?searchtype=author&query=Ignatov%2C+F">F. Ignatov</a>, <a href="/search/physics?searchtype=author&query=Meucci%2C+M">M. Meucci</a>, <a href="/search/physics?searchtype=author&query=Molzon%2C+W">W. Molzon</a>, <a href="/search/physics?searchtype=author&query=Nicolo%27%2C+D">D. Nicolo'</a>, <a href="/search/physics?searchtype=author&query=Oya%2C+A">A. Oya</a>, <a href="/search/physics?searchtype=author&query=Palo%2C+D">D. Palo</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">M. Panareo</a>, <a href="/search/physics?searchtype=author&query=Papa%2C+A">A. Papa</a>, <a href="/search/physics?searchtype=author&query=Raffaelli%2C+F">F. Raffaelli</a>, <a href="/search/physics?searchtype=author&query=Renga%2C+F">F. Renga</a> , et al. (6 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="2310.12865v2-abstract-short" style="display: inline;"> The cylindrical drift chamber is the most innovative part of the MEG~II detector, the upgraded version of the MEG experiment. The MEG~II chamber differs from the MEG one because it is a single volume cylindrical structure, instead of a segmented one, chosen to improve its resolutions and efficiency in detecting low energy positrons from muon decays at rest. In this paper, we show the characteristi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.12865v2-abstract-full').style.display = 'inline'; document.getElementById('2310.12865v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.12865v2-abstract-full" style="display: none;"> The cylindrical drift chamber is the most innovative part of the MEG~II detector, the upgraded version of the MEG experiment. The MEG~II chamber differs from the MEG one because it is a single volume cylindrical structure, instead of a segmented one, chosen to improve its resolutions and efficiency in detecting low energy positrons from muon decays at rest. In this paper, we show the characteristics and performances of this fundamental part of the MEG~II apparatus and we discuss the impact of its higher resolution and efficiency on the sensitivity of the MEG~II experiment. Because of its innovative structure and high quality resolution and efficiency the MEG~II cylindrical drift chamber will be a cornerstone in the development of an ideal tracking detector for future positron-electron collider machines. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.12865v2-abstract-full').style.display = 'none'; document.getElementById('2310.12865v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">27 pages, 42 figures, published on EPJC 84(2024)5,473</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.11902">arXiv:2310.11902</a> <span> [<a href="https://arxiv.org/pdf/2310.11902">pdf</a>, <a href="https://arxiv.org/format/2310.11902">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Operation and performance of MEG II detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=MEG+II+Collaboration"> MEG II Collaboration</a>, <a href="/search/physics?searchtype=author&query=Afanaciev%2C+K">K. Afanaciev</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+A+M">A. M. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ban%2C+S">S. Ban</a>, <a href="/search/physics?searchtype=author&query=Baranov%2C+V">V. Baranov</a>, <a href="/search/physics?searchtype=author&query=Benmansour%2C+H">H. Benmansour</a>, <a href="/search/physics?searchtype=author&query=Biasotti%2C+M">M. Biasotti</a>, <a href="/search/physics?searchtype=author&query=Boca%2C+G">G. Boca</a>, <a href="/search/physics?searchtype=author&query=Cattaneo%2C+P+W">P. W. Cattaneo</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cei%2C+F">F. Cei</a>, <a href="/search/physics?searchtype=author&query=Chiappini%2C+M">M. Chiappini</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">G. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Cuna%2C+F">F. Cuna</a>, <a href="/search/physics?searchtype=author&query=Maso%2C+G+D">G. Dal Maso</a>, <a href="/search/physics?searchtype=author&query=De+Bari%2C+A">A. De Bari</a>, <a href="/search/physics?searchtype=author&query=De+Gerone%2C+M">M. De Gerone</a>, <a href="/search/physics?searchtype=author&query=Barusso%2C+L+F">L. Ferrari Barusso</a>, <a href="/search/physics?searchtype=author&query=Francesconi%2C+M">M. Francesconi</a>, <a href="/search/physics?searchtype=author&query=Galli%2C+L">L. Galli</a>, <a href="/search/physics?searchtype=author&query=Gallucci%2C+G">G. Gallucci</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+F">F. Gatti</a>, <a href="/search/physics?searchtype=author&query=Gerritzen%2C+L">L. Gerritzen</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">F. Grancagnolo</a> , et al. (60 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="2310.11902v3-abstract-short" style="display: inline;"> The MEG II experiment, located at the Paul Scherrer Institut (PSI) in Switzerland, is the successor to the MEG experiment, which completed data taking in 2013. MEG II started fully operational data taking in 2021, with the goal of improving the sensitivity of the mu+ -> e+ gamma decay down to 6e-14 almost an order of magnitude better than the current limit. In this paper, we describe the operation… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.11902v3-abstract-full').style.display = 'inline'; document.getElementById('2310.11902v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.11902v3-abstract-full" style="display: none;"> The MEG II experiment, located at the Paul Scherrer Institut (PSI) in Switzerland, is the successor to the MEG experiment, which completed data taking in 2013. MEG II started fully operational data taking in 2021, with the goal of improving the sensitivity of the mu+ -> e+ gamma decay down to 6e-14 almost an order of magnitude better than the current limit. In this paper, we describe the operation and performance of the experiment and give a new estimate of its sensitivity versus data acquisition time. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.11902v3-abstract-full').style.display = 'none'; document.getElementById('2310.11902v3-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 18 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">42 pages, 55 figures. Submitted to EPJC</span> </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/physics?searchtype=author&query=Ripoli%2C+C">C. Ripoli</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Cavazza%2C+D">D. Cavazza</a>, <a href="/search/physics?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Gramstad%2C+E">E. Gramstad</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</a>, <a href="/search/physics?searchtype=author&query=H%C3%A5land%2C+E+S">E. S. H氓land</a>, <a href="/search/physics?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/2304.10806">arXiv:2304.10806</a> <span> [<a href="https://arxiv.org/pdf/2304.10806">pdf</a>, <a href="https://arxiv.org/format/2304.10806">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"> Cluster counting algorithms for particle identification at future colliders </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=D%27Anzi%2C+B">Brunella D'Anzi</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">Gianluigi Chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">Alessandro Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Filippis%2C+N">Nicola De Filippis</a>, <a href="/search/physics?searchtype=author&query=Elmetenawee%2C+W">Walaa Elmetenawee</a>, <a href="/search/physics?searchtype=author&query=De+Santis%2C+F">Francesco De Santis</a>, <a href="/search/physics?searchtype=author&query=Gorini%2C+E">Edoardo Gorini</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">Francesco Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Maggi%2C+M">Marcello Maggi</a>, <a href="/search/physics?searchtype=author&query=Miccoli%2C+A">Alessandro Miccoli</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">Marco Panareo</a>, <a href="/search/physics?searchtype=author&query=Primavera%2C+M">Margherita Primavera</a>, <a href="/search/physics?searchtype=author&query=Ventura%2C+A">Andrea Ventura</a>, <a href="/search/physics?searchtype=author&query=Xin%2C+S">Shuiting Xin</a>, <a href="/search/physics?searchtype=author&query=Guo%2C+F">Fangyi Guo</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+S">Shuaiyi Liu</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="2304.10806v1-abstract-short" style="display: inline;"> Recognition of electron peaks and primary ionization clusters in real data-driven waveform signals is the main goal of research for the usage of the cluster counting technique in particle identification at future colliders. The state-of-the-art open-source algorithms fail in finding the cluster distribution Poisson behavior even in low-noise conditions. In this work, we present cutting-edge algori… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.10806v1-abstract-full').style.display = 'inline'; document.getElementById('2304.10806v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.10806v1-abstract-full" style="display: none;"> Recognition of electron peaks and primary ionization clusters in real data-driven waveform signals is the main goal of research for the usage of the cluster counting technique in particle identification at future colliders. The state-of-the-art open-source algorithms fail in finding the cluster distribution Poisson behavior even in low-noise conditions. In this work, we present cutting-edge algorithms and their performance to search for electron peaks and identify ionization clusters in experimental data using the latest available computing tools and physics knowledge. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.10806v1-abstract-full').style.display = 'none'; document.getElementById('2304.10806v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">6 pages, 12 figures, Proceedings of: ACAT2022</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.12568">arXiv:2211.12568</a> <span> [<a href="https://arxiv.org/pdf/2211.12568">pdf</a>, <a href="https://arxiv.org/format/2211.12568">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> The Tracking performance for the IDEA drift chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Elmetenawee%2C+W">Walaa Elmetenawee</a>, <a href="/search/physics?searchtype=author&query=chiarello%2C+g">gianluigi chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">Alessandro Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Cuna%2C+F">Federica Cuna</a>, <a href="/search/physics?searchtype=author&query=De+Filippis%2C+N">Nicola De Filippis</a>, <a href="/search/physics?searchtype=author&query=Gorini%2C+E">Edoardo Gorini</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">Francesco Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Maggi%2C+M">Marcello Maggi</a>, <a href="/search/physics?searchtype=author&query=Miccoli%2C+A">Alessandro Miccoli</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">Marco Panareo</a>, <a href="/search/physics?searchtype=author&query=Primavera%2C+M">Margherita Primavera</a>, <a href="/search/physics?searchtype=author&query=Tassielli%2C+G+F">Giovanni Francesco Tassielli</a>, <a href="/search/physics?searchtype=author&query=Ventura%2C+A">Andrea Ventura</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="2211.12568v1-abstract-short" style="display: inline;"> The IDEA detector concept for a future e$^{+}$e$^{-}$ collider adopts an ultra-low mass drift chamber as a central tracking system. The He-based ultra-low mass drift chamber is designed to provide efficient tracking, a high-precision momentum measurement, and excellent particle identification by exploiting the cluster counting technique. This paper describes the expected tracking performance, obta… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.12568v1-abstract-full').style.display = 'inline'; document.getElementById('2211.12568v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.12568v1-abstract-full" style="display: none;"> The IDEA detector concept for a future e$^{+}$e$^{-}$ collider adopts an ultra-low mass drift chamber as a central tracking system. The He-based ultra-low mass drift chamber is designed to provide efficient tracking, a high-precision momentum measurement, and excellent particle identification by exploiting the cluster counting technique. This paper describes the expected tracking performance, obtained with full and fast simulation, for track reconstruction on detailed simulated physics events. Moreover, the details of the construction parameters of the drift chamber, including the inspection of new material for the wires, new techniques for soldering the wires, the development of an improved schema for the drift cell, and the choice of a gas mixture, will be described. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.12568v1-abstract-full').style.display = 'none'; document.getElementById('2211.12568v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.04220">arXiv:2211.04220</a> <span> [<a href="https://arxiv.org/pdf/2211.04220">pdf</a>, <a href="https://arxiv.org/format/2211.04220">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/10.1016/j.nima.2022.167969">10.1016/j.nima.2022.167969 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Particle identification with the cluster counting technique for the IDEA drift chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Caputo%2C+C">Claudio Caputo</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">Gianluigi Chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">Alessandro Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Cuna%2C+F">Federica Cuna</a>, <a href="/search/physics?searchtype=author&query=D%27Anzi%2C+B">Brunella D'Anzi</a>, <a href="/search/physics?searchtype=author&query=De+Filippis%2C+N">Nicola De Filippis</a>, <a href="/search/physics?searchtype=author&query=Elmetenawee%2C+W">Walaa Elmetenawee</a>, <a href="/search/physics?searchtype=author&query=Gorini%2C+E">Edoardo Gorini</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">Francesco Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Greco%2C+M">Matteo Greco</a>, <a href="/search/physics?searchtype=author&query=Gribanov%2C+S">Sergei Gribanov</a>, <a href="/search/physics?searchtype=author&query=Johnson%2C+K">Kurtis Johnson</a>, <a href="/search/physics?searchtype=author&query=Miccoli%2C+A">Alessandro Miccoli</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">Marco Panareo</a>, <a href="/search/physics?searchtype=author&query=Popov%2C+A">Alexander Popov</a>, <a href="/search/physics?searchtype=author&query=Primavera%2C+M">Margherita Primavera</a>, <a href="/search/physics?searchtype=author&query=Taliercio%2C+A">Angela Taliercio</a>, <a href="/search/physics?searchtype=author&query=Tassielli%2C+G+F">Giovanni Francesco Tassielli</a>, <a href="/search/physics?searchtype=author&query=Ventura%2C+A">Andrea Ventura</a>, <a href="/search/physics?searchtype=author&query=Xin%2C+S">Shuiting Xin</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="2211.04220v2-abstract-short" style="display: inline;"> IDEA (Innovative Detector for an Electron-positron Accelerator) is a general-purpose detector concept, designed to study electron-positron collisions in a wide energy range from a very large circular leptonic collider. Its drift chamber is designed to provide an efficient tracking, a high precision momentum measurement and an excellent particle identification by exploiting the application of the c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.04220v2-abstract-full').style.display = 'inline'; document.getElementById('2211.04220v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.04220v2-abstract-full" style="display: none;"> IDEA (Innovative Detector for an Electron-positron Accelerator) is a general-purpose detector concept, designed to study electron-positron collisions in a wide energy range from a very large circular leptonic collider. Its drift chamber is designed to provide an efficient tracking, a high precision momentum measurement and an excellent particle identification by exploiting the application of the cluster counting technique. To investigate the potential of the cluster counting techniques on physics events, a simulation of the ionization clusters generation is needed, therefore we developed an algorithm which can use the energy deposit information provided by Geant4 toolkit to reproduce, in a fast and convenient way, the clusters number distribution and the cluster size distribution. The results obtained confirm that the cluster counting technique allows to reach a resolution 2 times better than the traditional dE/dx method. A beam test has been performed during November 2021 at CERN on the H8 to validate the simulations results, to define the limiting effects for a fully efficient cluster counting and to count the number of electron clusters released by an ionizing track at a fixed $尾纬$ as a function of the track angle. The simulation and the beam test results will be described briefly in this issue. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.04220v2-abstract-full').style.display = 'none'; document.getElementById('2211.04220v2-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 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 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">2 pages, 4 figures, Proceedings of: PM2021</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.10990">arXiv:2207.10990</a> <span> [<a href="https://arxiv.org/pdf/2207.10990">pdf</a>, <a href="https://arxiv.org/format/2207.10990">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> The measuring systems of the wire tension for the MEG II Drift Chamber by means of the resonant frequency technique </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Baldini%2C+A+M">A. M. Baldini</a>, <a href="/search/physics?searchtype=author&query=Benmansour%2C+H">H. Benmansour</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cei%2C+F">F. Cei</a>, <a href="/search/physics?searchtype=author&query=Chiappini%2C+M">M. Chiappini</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">G. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Chiri%2C+C">C. Chiri</a>, <a href="/search/physics?searchtype=author&query=Cocciolo%2C+G">G. Cocciolo</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Cuna%2C+F">F. Cuna</a>, <a href="/search/physics?searchtype=author&query=Francesconi%2C+M">M. Francesconi</a>, <a href="/search/physics?searchtype=author&query=Galli%2C+L">L. Galli</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">F. Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Grassi%2C+M">M. Grassi</a>, <a href="/search/physics?searchtype=author&query=Meucci%2C+M">M. Meucci</a>, <a href="/search/physics?searchtype=author&query=Miccoli%2C+A">A. Miccoli</a>, <a href="/search/physics?searchtype=author&query=Nicolo%27%2C+D">D. Nicolo'</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">M. Panareo</a>, <a href="/search/physics?searchtype=author&query=Papa%2C+A">A. Papa</a>, <a href="/search/physics?searchtype=author&query=Pinto%2C+C">C. Pinto</a>, <a href="/search/physics?searchtype=author&query=Raffaelli%2C+F">F. Raffaelli</a>, <a href="/search/physics?searchtype=author&query=Renga%2C+F">F. Renga</a>, <a href="/search/physics?searchtype=author&query=Signorelli%2C+G">G. Signorelli</a>, <a href="/search/physics?searchtype=author&query=Tassielli%2C+G+F">G. F. Tassielli</a>, <a href="/search/physics?searchtype=author&query=Venturini%2C+A">A. Venturini</a> , et al. (2 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="2207.10990v2-abstract-short" style="display: inline;"> The ultra-low mass cylindrical drift chamber designed for the MEG II experiment is a challenging apparatus made of 1728 phi = 20 micron gold plated tungsten sense wires, 7680 phi = 40 micron and 2496 phi = 50 micron silver plated aluminum field wires. Because of electrostatic stability requirements all the wires have to be stretched at mechanical tensions of about 25, 19 and 29 g respectively whic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.10990v2-abstract-full').style.display = 'inline'; document.getElementById('2207.10990v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.10990v2-abstract-full" style="display: none;"> The ultra-low mass cylindrical drift chamber designed for the MEG II experiment is a challenging apparatus made of 1728 phi = 20 micron gold plated tungsten sense wires, 7680 phi = 40 micron and 2496 phi = 50 micron silver plated aluminum field wires. Because of electrostatic stability requirements all the wires have to be stretched at mechanical tensions of about 25, 19 and 29 g respectively which must be controlled at a level better than 0.5 g. This chamber is presently in acquisition, but during its construction about 100 field wires broke, because of chemical corrosion induced by the atmospheric humidity. On the basis of the experience gained with this chamber we decided to build a new one, equipped with a different type of wires less sensitive to corrosion. The choice of the new wire required a deep inspection of its characteristics and one of the main tools for doing this is a system for measuring the wire tension by means of the resonant frequency technique, which is described in this paper. The system forces the wires to oscillate by applying a sinusoidal signal at a known frequency, and then measures the variation of the capacitance between a wire and a common ground plane as a function of the external signal frequency. We present the details of the measuring system and the results obtained by scanning the mechanical tensions of two samples of MEG II cylindrical drift chamber wires and discuss the possible improvements of the experimental apparatus and of the measuring technique. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.10990v2-abstract-full').style.display = 'none'; document.getElementById('2207.10990v2-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 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">Nineteen pages, thirteen figures, published on Nuclear Instruments and Methods A</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Instrum.Meth.A 1045 (2023) 167534 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.13948">arXiv:2108.13948</a> <span> [<a href="https://arxiv.org/pdf/2108.13948">pdf</a>, <a href="https://arxiv.org/format/2108.13948">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div 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/10.1088/1748-0221/16/12/T12003">10.1088/1748-0221/16/12/T12003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Detailed analysis of chemical corrosion of ultra-thin wires used in drift chamber detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Baldini%2C+A+M">A. M. Baldini</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cei%2C+F">F. Cei</a>, <a href="/search/physics?searchtype=author&query=Chiappini%2C+M">M. Chiappini</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">G. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Chiri%2C+C">C. Chiri</a>, <a href="/search/physics?searchtype=author&query=Cocciolo%2C+G">G. Cocciolo</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Cuna%2C+F">F. Cuna</a>, <a href="/search/physics?searchtype=author&query=Francesconi%2C+M">M. Francesconi</a>, <a href="/search/physics?searchtype=author&query=Galli%2C+L">L. Galli</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">F. Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Grassi%2C+M">M. Grassi</a>, <a href="/search/physics?searchtype=author&query=Ishak%2C+R">R. Ishak</a>, <a href="/search/physics?searchtype=author&query=Meucci%2C+M">M. Meucci</a>, <a href="/search/physics?searchtype=author&query=Nicol%C3%B3%2C+D">D. Nicol贸</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">M. Panareo</a>, <a href="/search/physics?searchtype=author&query=Papa%2C+A">A. Papa</a>, <a href="/search/physics?searchtype=author&query=Pepino%2C+A">A. Pepino</a>, <a href="/search/physics?searchtype=author&query=Raffaelli%2C+F">F. Raffaelli</a>, <a href="/search/physics?searchtype=author&query=Renga%2C+F">F. Renga</a>, <a href="/search/physics?searchtype=author&query=Ripiccini%2C+E">E. Ripiccini</a>, <a href="/search/physics?searchtype=author&query=Signorelli%2C+G">G. Signorelli</a>, <a href="/search/physics?searchtype=author&query=Tassielli%2C+G+F">G. F. Tassielli</a>, <a href="/search/physics?searchtype=author&query=Valentini%2C+R">R. Valentini</a> , et al. (2 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="2108.13948v2-abstract-short" style="display: inline;"> Ultra-thin metallic anodic and cathodic wires are frequently employed in low-mass gaseous detectors for precision experiments, where the amount of material crossed by charged particles must be minimised. We present here the results of an analysis of the mechanical stress and chemical corrosion effects observed in $40$ and $50~{\rm{渭m}}$ diameter silver plated aluminum wires mounted within the volu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.13948v2-abstract-full').style.display = 'inline'; document.getElementById('2108.13948v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.13948v2-abstract-full" style="display: none;"> Ultra-thin metallic anodic and cathodic wires are frequently employed in low-mass gaseous detectors for precision experiments, where the amount of material crossed by charged particles must be minimised. We present here the results of an analysis of the mechanical stress and chemical corrosion effects observed in $40$ and $50~{\rm{渭m}}$ diameter silver plated aluminum wires mounted within the volume of the MEG\,II drift chamber, which caused the breaking of about one hundred wires (over a total of $\approx 12000$). This analysis is based on the accurate inspection of the broken wires by means of optical and electronic microscopes and on a detailed recording of all breaking accidents. We present a simple empirical model which relates the number of broken wires to their exposure time to atmospheric humidity and to their mechanical tension, which is necessary for mechanical stability in the presence of electrostatic fields of several kV/cm. Finally we discuss how wire breakings can be avoided or at least strongly reduced by operating in controlled atmosphere during the mounting stages of the wires within the drift chamber and by choosing a $25\,\%$ thicker wire diameter, which has very small effects on the detector resolution and efficiency and can be obtained by using a safer fabrication technique. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.13948v2-abstract-full').style.display = 'none'; document.getElementById('2108.13948v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">14 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/2107.10767">arXiv:2107.10767</a> <span> [<a href="https://arxiv.org/pdf/2107.10767">pdf</a>, <a href="https://arxiv.org/format/2107.10767">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/10.3390/sym13091591">10.3390/sym13091591 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Search for $渭^+\to e^+ 纬$ with 10$^{-14}$ Sensitivity: the Upgrade of the MEG Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=The+MEG+II+Collaboration"> The MEG II Collaboration</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+A+M">Alessandro M. Baldini</a>, <a href="/search/physics?searchtype=author&query=Baranov%2C+V">Vladimir Baranov</a>, <a href="/search/physics?searchtype=author&query=Biasotti%2C+M">Michele Biasotti</a>, <a href="/search/physics?searchtype=author&query=Boca%2C+G">Gianluigi Boca</a>, <a href="/search/physics?searchtype=author&query=Cattaneo%2C+P+W">Paolo W. Cattaneo</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">Gianluca Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cei%2C+F">Fabrizio Cei</a>, <a href="/search/physics?searchtype=author&query=Chiappini%2C+M">Marco Chiappini</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">Gianluigi Chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">Alessandro Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Cuna%2C+F">Federica Cuna</a>, <a href="/search/physics?searchtype=author&query=Maso%2C+G+d">Giovanni dal Maso</a>, <a href="/search/physics?searchtype=author&query=de+Bari%2C+A">Antonio de Bari</a>, <a href="/search/physics?searchtype=author&query=De+Gerone%2C+M">Matteo De Gerone</a>, <a href="/search/physics?searchtype=author&query=Francesconi%2C+M">Marco Francesconi</a>, <a href="/search/physics?searchtype=author&query=Galli%2C+L">Luca Galli</a>, <a href="/search/physics?searchtype=author&query=Gallucci%2C+G">Giovanni Gallucci</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+F">Flavio Gatti</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">Francesco Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Grassi%2C+M">Marco Grassi</a>, <a href="/search/physics?searchtype=author&query=Grigoriev%2C+D+N">Dmitry N. Grigoriev</a>, <a href="/search/physics?searchtype=author&query=Hildebrandt%2C+M">Malte Hildebrandt</a>, <a href="/search/physics?searchtype=author&query=Ieki%2C+K">Kei Ieki</a>, <a href="/search/physics?searchtype=author&query=Ignatov%2C+F">Fedor Ignatov</a> , et al. (45 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.10767v2-abstract-short" style="display: inline;"> The MEG experiment took data at the Paul Scherrer Institute in the years 2009--2013 to test the violation of the lepton flavour conservation law, which originates from an accidental symmetry that the Standard Model of elementary particle physics has, and published the most stringent limit on the charged lepton flavour violating decay $渭^+ \rightarrow {\rm e}^+ 纬$: BR($渭^+ \rightarrow {\rm e}^+ 纬$)… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.10767v2-abstract-full').style.display = 'inline'; document.getElementById('2107.10767v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.10767v2-abstract-full" style="display: none;"> The MEG experiment took data at the Paul Scherrer Institute in the years 2009--2013 to test the violation of the lepton flavour conservation law, which originates from an accidental symmetry that the Standard Model of elementary particle physics has, and published the most stringent limit on the charged lepton flavour violating decay $渭^+ \rightarrow {\rm e}^+ 纬$: BR($渭^+ \rightarrow {\rm e}^+ 纬$) $<4.2 \times 10^{-13}$ at 90% confidence level. The MEG detector has been upgraded in order to reach a sensitivity of $6\times10^{-14}$. The basic principle of MEG II is to achieve the highest possible sensitivity using the full muon beam intensity at the Paul Scherrer Institute ($7\times10^{7}$ muons/s) with an upgraded detector. The main improvements are better rate capability of all sub-detectors and improved resolutions while keeping the same detector concept. In this paper, we present the current status of the preparation, integration and commissioning of the MEG II detector in the recent engineering runs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.10767v2-abstract-full').style.display = 'none'; document.getElementById('2107.10767v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">12 pages, 4 figures. The version of acceptance for Symmetry</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Symmetry 2021, 13(9), 1591 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2104.06012">arXiv:2104.06012</a> <span> [<a href="https://arxiv.org/pdf/2104.06012">pdf</a>, <a href="https://arxiv.org/format/2104.06012">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-021-09237-y">10.1140/epjc/s10052-021-09237-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The cosmic muon and detector simulation framework of the Extreme Energy Events (EEE) experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossin%2C+E">E. Bossin</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+F">F. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Fulci%2C+A">A. Fulci</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</a>, <a href="/search/physics?searchtype=author&query=Hatzifotiadou%2C+D">D. Hatzifotiadou</a>, <a href="/search/physics?searchtype=author&query=La+Rocca%2C+P">P. La Rocca</a> , et al. (38 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="2104.06012v1-abstract-short" style="display: inline;"> This paper describes the simulation framework of the Extreme Energy Events (EEE) experiment. EEE is a network of cosmic muon trackers, each made of three Multi-gap Resistive Plate Chambers (MRPC), able to precisely measure the absolute muon crossing time and the muon integrated angular flux at the ground level. The response of a single MRPC and the combination of three chambers have been implement… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.06012v1-abstract-full').style.display = 'inline'; document.getElementById('2104.06012v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.06012v1-abstract-full" style="display: none;"> This paper describes the simulation framework of the Extreme Energy Events (EEE) experiment. EEE is a network of cosmic muon trackers, each made of three Multi-gap Resistive Plate Chambers (MRPC), able to precisely measure the absolute muon crossing time and the muon integrated angular flux at the ground level. The response of a single MRPC and the combination of three chambers have been implemented in a GEANT4-based framework (GEMC) to study the telescope response. The detector geometry, as well as details about the surrounding materials and the location of the telescopes have been included in the simulations in order to realistically reproduce the experimental set-up of each telescope. A model based on the latest parametrization of the cosmic muon flux has been used to generate single muon events. After validating the framework by comparing simulations to selected EEE telescope data, it has been used to determine detector parameters not accessible by analysing experimental data only, such as detection efficiency, angular and spatial resolution. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.06012v1-abstract-full').style.display = 'none'; document.getElementById('2104.06012v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">16 pages, 25 figures, 3 tables, submitted to EPJC</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> The European Physical Journal C 81, 464 (2021) </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/physics?searchtype=author&query=Panetta%2C+M+P">M. P. Panetta</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+F">F. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Falchieri%2C+D">D. Falchieri</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</a>, <a href="/search/physics?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/2006.05154">arXiv:2006.05154</a> <span> [<a href="https://arxiv.org/pdf/2006.05154">pdf</a>, <a href="https://arxiv.org/format/2006.05154">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> A 10-3 drift velocity monitoring chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Cuna%2C+F">F. Cuna</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">G. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Filippis%2C+N">N. De Filippis</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">F. Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Manta%2C+M">M. Manta</a>, <a href="/search/physics?searchtype=author&query=Margjeka%2C+I">I. Margjeka</a>, <a href="/search/physics?searchtype=author&query=Miccoli%2C+A">A. Miccoli</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">M. Panareo</a>, <a href="/search/physics?searchtype=author&query=Tassielli%2C+G+F">G. F. Tassielli</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="2006.05154v1-abstract-short" style="display: inline;"> The MEG-II experiment searches for the lepton flavor violating decay: mu in electron and gamma. The reconstruction of the positron trajectory uses a cylindrical drift chamber operated with a mixture of He and iC4H10 gas. It is important to provide a stable performance of the detector in terms of its electron transport parameters, avalanche multiplication, composition and purity of the gas mixture.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.05154v1-abstract-full').style.display = 'inline'; document.getElementById('2006.05154v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.05154v1-abstract-full" style="display: none;"> The MEG-II experiment searches for the lepton flavor violating decay: mu in electron and gamma. The reconstruction of the positron trajectory uses a cylindrical drift chamber operated with a mixture of He and iC4H10 gas. It is important to provide a stable performance of the detector in terms of its electron transport parameters, avalanche multiplication, composition and purity of the gas mixture. In order to have a continuous monitoring of the quality of gas, we plan to install a small drift chamber, with a simple geometry that allows to measure very precisely the electron drift velocity in a prompt way. This monitoring chamber will be supplied with gas coming from the inlet and the outlet of the detector to determine if gas contaminations originate inside the main chamber or in the gas supply system. The chamber is a small box with cathode walls, that define a highly uniform electric field inside two adjacent drift cells. Along the axis separating the two drift cells, four staggered sense wires alternated with five guard wires collect the drifting electrons. The trigger is provided by two 90Sr weak calibration radioactive sources placed on top of a two thin scintillator tiles telescope. The whole system is designed to give a prompt response (within a minute) about drift velocity variations at the 0.001 level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.05154v1-abstract-full').style.display = 'none'; document.getElementById('2006.05154v1-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.02378">arXiv:2006.02378</a> <span> [<a href="https://arxiv.org/pdf/2006.02378">pdf</a>, <a href="https://arxiv.org/format/2006.02378">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/15/09/C09051">10.1088/1748-0221/15/09/C09051 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Drift Chamber of the MEG II experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Tassielli%2C+G+F">G. F. Tassielli</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+A+M">A. M. Baldini</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cei%2C+F">F. Cei</a>, <a href="/search/physics?searchtype=author&query=Chiappini%2C+M">M. Chiappini</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">G. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Francesconi%2C+M">M. Francesconi</a>, <a href="/search/physics?searchtype=author&query=Galli%2C+L">L. Galli</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">F. Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Grassi%2C+M">M. Grassi</a>, <a href="/search/physics?searchtype=author&query=Hildebrandt%2C+M">M. Hildebrandt</a>, <a href="/search/physics?searchtype=author&query=Meucci%2C+M">M. Meucci</a>, <a href="/search/physics?searchtype=author&query=Miccoli%2C+A">A. Miccoli</a>, <a href="/search/physics?searchtype=author&query=Nicol%C3%B2%2C+D">D. Nicol貌</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">M. Panareo</a>, <a href="/search/physics?searchtype=author&query=Papa%2C+A">A. Papa</a>, <a href="/search/physics?searchtype=author&query=Raffaelli%2C+F">F. Raffaelli</a>, <a href="/search/physics?searchtype=author&query=Renga%2C+F">F. Renga</a>, <a href="/search/physics?searchtype=author&query=Schwendimann%2C+P">P. Schwendimann</a>, <a href="/search/physics?searchtype=author&query=Signorelli%2C+G">G. Signorelli</a>, <a href="/search/physics?searchtype=author&query=Voena%2C+C">C. Voena</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="2006.02378v2-abstract-short" style="display: inline;"> The MEG experiment at the Paul Scherrer Institut searches for the charged-Lepton-Flavor-Violating mu+ -> e+ gamma decay. MEG has already set the world best upper limit on the branching ratio: BR<4.2x10^-13 @ 90% C.l. An upgrade (MEG II) of the whole detector has been approved to obtain a substantial increase of sensitivity. Currently MEG II is completing the upgrade of the various detectors, an en… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.02378v2-abstract-full').style.display = 'inline'; document.getElementById('2006.02378v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.02378v2-abstract-full" style="display: none;"> The MEG experiment at the Paul Scherrer Institut searches for the charged-Lepton-Flavor-Violating mu+ -> e+ gamma decay. MEG has already set the world best upper limit on the branching ratio: BR<4.2x10^-13 @ 90% C.l. An upgrade (MEG II) of the whole detector has been approved to obtain a substantial increase of sensitivity. Currently MEG II is completing the upgrade of the various detectors, an engineering run and a pre-commissioning run were carried out during 2018 and 2019. The new positron tracker is a unique volume, ultra-light He based cylindrical drift chamber (CDCH), with high granularity: 9 layers of 192 square drift cells, ~6-9 mm wide, consist of ~12000 wires in a full stereo configuration. To ensure the electrostatic stability of the drift cells a new wiring strategy should be developed due to the high wire density (12 wires/cm^2 ), the stringent precision requirements on the wire position and uniformity of the wire mechanical tension (better than 0.5 g) The basic idea is to create multiwire frames, by soldering a set of (16 or 32) wires on 40 um thick custom wire-PCBs. Multiwire frames and PEEK spacers are overlapped alternately along the radius, to set the proper cell width, in each of the twelve sectors defined by the spokes of the rudder wheel shaped end-plates. Despite to the conceptual simplicity of the assembling strategies, the building of the multiwire frames, with the set requirements, imposes a use of an automatic wiring system. The MEG II CDCH is the first cylindrical drift chamber ever designed and built in a modular way and it will allow to track positrons, with a momentum greater than 45 MeV/c, with high efficiency by using a very small amount of material, 1.5x10^-3 X0 . We describe the CDCH design and construction, the wiring phase at INFN-Lecce, the choice of the wires, their mechanical properties, the assembly and sealing at INFN-Pisa and the commissioning. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.02378v2-abstract-full').style.display = 'none'; document.getElementById('2006.02378v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 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, 8 figures, 1 table, proceeding at INSTR'20 conference, accepted for publication in JINST</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.02002">arXiv:2006.02002</a> <span> [<a href="https://arxiv.org/pdf/2006.02002">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> </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/10.1088/1748-0221/15/11/C11014">10.1088/1748-0221/15/11/C11014 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Characteristics and performance of the Multigap Resistive Plate Chambers of the EEE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+F">F. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Falchieri%2C+D">D. Falchieri</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</a>, <a href="/search/physics?searchtype=author&query=Hatzifotiadou%2C+D">D. Hatzifotiadou</a>, <a href="/search/physics?searchtype=author&query=La+Rocca%2C+P">P. La Rocca</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="2006.02002v2-abstract-short" style="display: inline;"> The Extreme Energy Events (EEE) experiment, dedicated to the study of secondary cosmic rays, is arguably the largest detector system in the world implemented by Multigap Resistive Plate Chambers. The EEE network consists of 60 telescopes distributed over all the Italian territory; each telescope is made of three MRPCs and allows to reconstruct the trajectory of cosmic muons with high efficiency an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.02002v2-abstract-full').style.display = 'inline'; document.getElementById('2006.02002v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.02002v2-abstract-full" style="display: none;"> The Extreme Energy Events (EEE) experiment, dedicated to the study of secondary cosmic rays, is arguably the largest detector system in the world implemented by Multigap Resistive Plate Chambers. The EEE network consists of 60 telescopes distributed over all the Italian territory; each telescope is made of three MRPCs and allows to reconstruct the trajectory of cosmic muons with high efficiency and optimal angular resolution. A distinctive feature of the EEE network is that almost all telescopes are housed in High Schools and managed by groups of students and teachers, who previously took care of their construction at CERN. This peculiarity is a big plus for the experiment, which combines the scientific relevance of its objectives with effective outreach activities. The unconventional location of the detectors, mainly in standard classrooms of school buildings, with heterogeneous maintenance conditions and without controlled temperature and dedicated power lines, is a unique test field to verify the robustness, the low aging characteristics and the long-lasting performance of MRPC technology for particle monitoring and timing. Finally, it is reported how the spatial resolution, efficiency, tracking capability and stability of these chambers behave in time. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.02002v2-abstract-full').style.display = 'none'; document.getElementById('2006.02002v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 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">9 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.14644">arXiv:2005.14644</a> <span> [<a href="https://arxiv.org/pdf/2005.14644">pdf</a>, <a href="https://arxiv.org/format/2005.14644">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div 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/10.1088/1748-0221/15/10/C10021">10.1088/1748-0221/15/10/C10021 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A simulation tool for MRPC telescopes of the EEE project </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mandaglio%2C+G">G. Mandaglio</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossin%2C+E">E. Bossin</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+F">F. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Fulci%2C+A">A. Fulci</a>, <a href="/search/physics?searchtype=author&query=Falchieri%2C+D">D. Falchieri</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</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="2005.14644v2-abstract-short" style="display: inline;"> The Extreme Energy Events (EEE) Project is mainly devoted to the study of the secondary cosmic ray radiation by using muon tracker telescopes made of three Multigap Resistive Plate Chambers (MRPC) each. The experiment consists of a telescope network mainly distributed across Italy, hosted in different building structures pertaining to high schools, universities and research centers. Therefore, the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.14644v2-abstract-full').style.display = 'inline'; document.getElementById('2005.14644v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.14644v2-abstract-full" style="display: none;"> The Extreme Energy Events (EEE) Project is mainly devoted to the study of the secondary cosmic ray radiation by using muon tracker telescopes made of three Multigap Resistive Plate Chambers (MRPC) each. The experiment consists of a telescope network mainly distributed across Italy, hosted in different building structures pertaining to high schools, universities and research centers. Therefore, the possibility to take into account the effects of these structures on collected data is important for the large physics programme of the project. A simulation tool, based on GEANT4 and using GEMC framework, has been implemented to take into account the muon interaction with EEE telescopes and to estimate the effects on data of the structures surrounding the experimental apparata.A dedicated event generator producing realistic muon distributions, detailed geometry and microscopic behavior of MRPCs have been included to produce experimental-like data. The comparison between simulated and experimental data, and the estimation of detector resolutions is here presented and discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.14644v2-abstract-full').style.display = 'none'; document.getElementById('2005.14644v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2020 JINST 15 C10021 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.02242">arXiv:2005.02242</a> <span> [<a href="https://arxiv.org/pdf/2005.02242">pdf</a>, <a href="https://arxiv.org/format/2005.02242">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/15/06/C06056">10.1088/1748-0221/15/06/C06056 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Commissioning of the MEG II tracker system </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Chiappini%2C+M">M. Chiappini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+A+M">A. M. Baldini</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cei%2C+F">F. Cei</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">G. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=Francesconi%2C+M">M. Francesconi</a>, <a href="/search/physics?searchtype=author&query=Galli%2C+L">L. Galli</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">F. Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Grassi%2C+M">M. Grassi</a>, <a href="/search/physics?searchtype=author&query=Hildebrandt%2C+M">M. Hildebrandt</a>, <a href="/search/physics?searchtype=author&query=Meucci%2C+M">M. Meucci</a>, <a href="/search/physics?searchtype=author&query=Miccoli%2C+A">A. Miccoli</a>, <a href="/search/physics?searchtype=author&query=Nicol%C3%B2%2C+D">D. Nicol貌</a>, <a href="/search/physics?searchtype=author&query=Panareo%2C+M">M. Panareo</a>, <a href="/search/physics?searchtype=author&query=Papa%2C+A">A. Papa</a>, <a href="/search/physics?searchtype=author&query=Raffaelli%2C+F">F. Raffaelli</a>, <a href="/search/physics?searchtype=author&query=Renga%2C+F">F. Renga</a>, <a href="/search/physics?searchtype=author&query=Schwendimann%2C+P">P. Schwendimann</a>, <a href="/search/physics?searchtype=author&query=Signorelli%2C+G">G. Signorelli</a>, <a href="/search/physics?searchtype=author&query=Tassielli%2C+G+F">G. F. Tassielli</a>, <a href="/search/physics?searchtype=author&query=Voena%2C+C">C. Voena</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="2005.02242v1-abstract-short" style="display: inline;"> The MEG experiment at the Paul Scherrer Institut (PSI) represents the state of the art in the search for the charged Lepton Flavour Violating (cLFV) $渭^+ \rightarrow e^+ 纬$ decay. With the phase 1, MEG set the new world best upper limit on the $\mbox{BR}(渭^+ \rightarrow e^+ 纬) < 4.2 \times 10^{-13}$ (90% C.L.). With the phase 2, MEG II, the experiment aims at reaching a sensitivity enhancement of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.02242v1-abstract-full').style.display = 'inline'; document.getElementById('2005.02242v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.02242v1-abstract-full" style="display: none;"> The MEG experiment at the Paul Scherrer Institut (PSI) represents the state of the art in the search for the charged Lepton Flavour Violating (cLFV) $渭^+ \rightarrow e^+ 纬$ decay. With the phase 1, MEG set the new world best upper limit on the $\mbox{BR}(渭^+ \rightarrow e^+ 纬) < 4.2 \times 10^{-13}$ (90% C.L.). With the phase 2, MEG II, the experiment aims at reaching a sensitivity enhancement of about one order of magnitude compared to the previous MEG result. The new Cylindrical Drift CHamber (CDCH) is a key detector for MEG II. CDCH is a low-mass single volume detector with high granularity: 9 layers of 192 drift cells, few mm wide, defined by $\sim 12000$ wires in a stereo configuration for longitudinal hit localization. The filling gas mixture is Helium:Isobutane (90:10). The total radiation length is $1.5 \times 10^{-3}$ $\mbox{X}_0$, thus minimizing the Multiple Coulomb Scattering (MCS) contribution and allowing for a single-hit resolution $< 120$ $渭$m and an angular and momentum resolutions of 6 mrad and 90 keV/c respectively. This article presents the CDCH commissioning activities at PSI after the wiring phase at INFN Lecce and the assembly phase at INFN Pisa. The endcaps preparation, HV tests and conditioning of the chamber are described, aiming at reaching the final stable working point. The integration into the MEG II experimental apparatus is described, in view of the first data taking with cosmic rays and $渭^+$ beam during the 2018 and 2019 engineering runs. The first gas gain results are also shown. A full engineering run with all the upgraded detectors and the complete DAQ electronics is expected to start in 2020, followed by three years of physics data taking. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.02242v1-abstract-full').style.display = 'none'; document.getElementById('2005.02242v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">10 pages, 12 figures, 1 table, proceeding at INSTR'20 conference, accepted for publication in JINST</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.08651">arXiv:2004.08651</a> <span> [<a href="https://arxiv.org/pdf/2004.08651">pdf</a>, <a href="https://arxiv.org/format/2004.08651">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/1561/1/012015">10.1088/1742-6596/1561/1/012015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> MRPC Telescope Simulation for the Extreme Energy Events Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mandaglio%2C+G">G. Mandaglio</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Cical%C3%B2%2C+C">C. Cical貌</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+F">F. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Fulci%2C+A">A. Fulci</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Galeotti%2C+P">P. Galeotti</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</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="2004.08651v2-abstract-short" style="display: inline;"> A simulation tool based on GEMC framework to describe the MRPC telescope of the Extreme Energy Events (EEE) Project is presented. The EEE experiment is mainly devoted to the study of the secondary cosmic muons by using MRPC telescope distributed in high schools and research centres in Italy and at CERN. This takes into account the muon interactions with EEE telescopes and the structures surroundin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.08651v2-abstract-full').style.display = 'inline'; document.getElementById('2004.08651v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.08651v2-abstract-full" style="display: none;"> A simulation tool based on GEMC framework to describe the MRPC telescope of the Extreme Energy Events (EEE) Project is presented. The EEE experiment is mainly devoted to the study of the secondary cosmic muons by using MRPC telescope distributed in high schools and research centres in Italy and at CERN. This takes into account the muon interactions with EEE telescopes and the structures surrounding the experimental apparata; it consists of a dedicated event generator producing realistic muon distribution and a detailed geometry description of the detector. Microscopic behaviour of MRPCs has been included to produce experimental-like data. A method to estimate the chamber effciency directly from data has been implemented and tested by comparing the experimental and simulated polar angle distribution of muons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.08651v2-abstract-full').style.display = 'none'; document.getElementById('2004.08651v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">7 pages, 7 figure, International Workshop - Detection Systems and Techniques in Nuclear and Particle Physics - Messina (Italy), September 11-13, 2019. To be published in JP:CS</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Physics: Conference Series 1561 (2020) 012015 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.03918">arXiv:1806.03918</a> <span> [<a href="https://arxiv.org/pdf/1806.03918">pdf</a>, <a href="https://arxiv.org/format/1806.03918">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div 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/10.1088/1748-0221/14/08/C08008">10.1088/1748-0221/14/08/C08008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New Eco-gas mixtures for the Extreme Energy Events MRPCs: results and plans </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Pisano%2C+S">S. Pisano</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+L+B">L. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Chiavassa%2C+A">A. Chiavassa</a>, <a href="/search/physics?searchtype=author&query=Cicalo%2C+C">C. Cicalo</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Frolov%2C+V">V. Frolov</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Galeotti%2C+P">P. Galeotti</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</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="1806.03918v2-abstract-short" style="display: inline;"> The Extreme Energy Events observatory is an extended muon telescope array, covering more than 10 degrees both in latitude and longitude. Its 59 muon telescopes are equipped with tracking detectors based on Multigap Resistive Plate Chamber technology with time resolution of the order of a few hundred picoseconds. The recent restrictions on greenhouse gases demand studies for new gas mixtures in com… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03918v2-abstract-full').style.display = 'inline'; document.getElementById('1806.03918v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.03918v2-abstract-full" style="display: none;"> The Extreme Energy Events observatory is an extended muon telescope array, covering more than 10 degrees both in latitude and longitude. Its 59 muon telescopes are equipped with tracking detectors based on Multigap Resistive Plate Chamber technology with time resolution of the order of a few hundred picoseconds. The recent restrictions on greenhouse gases demand studies for new gas mixtures in compliance with the relative requirements. Tetrafluoropropene is one of the candidates for tetrafluoroethane substitution, since it is characterized by a Global Warming Power around 300 times lower than the gas mixtures used up to now. Several mixtures have been tested, measuring efficiency curves, charge distributions, streamer fractions and time resolutions. Results are presented for the whole set of mixtures and operating conditions, %. A set of tests on a real EEE telescope, with cosmic muons, are being performed at the CERN-01 EEE telescope. The tests are focusing on identifying a mixture with good performance at the low rates typical of an EEE telescope. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03918v2-abstract-full').style.display = 'none'; document.getElementById('1806.03918v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 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">8 pages, 6 figures, proceedings for the "XIV Workshop on Resistive Plate Chambers and Related Detectors" (19-23 February 2018), Puerto Vallarta, Jalisco State, Mexico</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.03913">arXiv:1806.03913</a> <span> [<a href="https://arxiv.org/pdf/1806.03913">pdf</a>, <a href="https://arxiv.org/format/1806.03913">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div 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/10.1088/1748-0221/14/08/C08005">10.1088/1748-0221/14/08/C08005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First results from the upgrade of the Extreme Energy Events experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Chiavassa%2C+A">A. Chiavassa</a>, <a href="/search/physics?searchtype=author&query=Cicalo%2C+C">C. Cicalo</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+L">L. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Frolov%2C+V">V. Frolov</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Galeotti%2C+P">P. Galeotti</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</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="1806.03913v1-abstract-short" style="display: inline;"> The Extreme Energy Events (EEE) experiment is the largest system in the world completely implemented with Multigap Resistive Plate Chambers (MRPCs). Presently, it consists of a network of 59 muon telescopes, each made of 3 MRPCs, devoted to the study of secondary cosmic rays. Its stations, sometimes hundreds of kilometers apart, are synchronized at a few nanoseconds level via a clock signal delive… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03913v1-abstract-full').style.display = 'inline'; document.getElementById('1806.03913v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.03913v1-abstract-full" style="display: none;"> The Extreme Energy Events (EEE) experiment is the largest system in the world completely implemented with Multigap Resistive Plate Chambers (MRPCs). Presently, it consists of a network of 59 muon telescopes, each made of 3 MRPCs, devoted to the study of secondary cosmic rays. Its stations, sometimes hundreds of kilometers apart, are synchronized at a few nanoseconds level via a clock signal delivered by the Global Positioning System. The data collected during centrally coordinated runs are sent to INFN CNAF, the largest center for scientific computing in Italy, where they are reconstructed and made available for analysis. Thanks to the on-line monitoring and data transmission, EEE operates as a single coordinated system spread over an area of about $3 \times 10^5$ km$^2$. In 2017, the EEE collaboration started an important upgrade program, aiming to extend the network with 20 additional stations, with the option to have more in the future. This implies the construction, testing and commissioning of 60 chambers, for a total detector surface of around 80 m$^2$. In this paper, aspects related to this challenging endeavor are covered, starting from the technological solutions chosen to build these state-of-the-art detectors, to the quality controls and the performance tests carried on. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03913v1-abstract-full').style.display = 'none'; document.getElementById('1806.03913v1-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 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">Prepared for the proceedings of the XIVth Workshop on Resistive Plate Chambers and related detectors, Feb. 19-23/2018, Puerto Vallarta, Jalisco State, MEXICO</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.03879">arXiv:1806.03879</a> <span> [<a href="https://arxiv.org/pdf/1806.03879">pdf</a>, <a href="https://arxiv.org/format/1806.03879">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div 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/10.1088/1748-0221/14/05/C05022">10.1088/1748-0221/14/05/C05022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Performance of the Multigap Resistive Plate Chambers of the Extreme Energy Events Project </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Chiavassa%2C+A">A. Chiavassa</a>, <a href="/search/physics?searchtype=author&query=Cicalo%2C+C">C. Cicalo</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Frolov%2C+V">V. Frolov</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Galeotti%2C+P">P. Galeotti</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</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="1806.03879v1-abstract-short" style="display: inline;"> The muon telescopes of the Extreme Energy Events (EEE) Project are made of three Multigap Resistive Plate Chambers (MRPC). The EEE array is composed, so far, of 59 telescopes and is organized in clusters and single telescope stations distributed all over the Italian territory. They are installed in High Schools with the aim to join research and teaching activities, by involving researchers, teache… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03879v1-abstract-full').style.display = 'inline'; document.getElementById('1806.03879v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.03879v1-abstract-full" style="display: none;"> The muon telescopes of the Extreme Energy Events (EEE) Project are made of three Multigap Resistive Plate Chambers (MRPC). The EEE array is composed, so far, of 59 telescopes and is organized in clusters and single telescope stations distributed all over the Italian territory. They are installed in High Schools with the aim to join research and teaching activities, by involving researchers, teachers and students in the construction, maintenance, data taking and data analysis. The unconventional working sites, mainly school buildings with non-controlled environmental parameters and heterogeneous maintenance conditions, are a unique test field for checking the robustness, the low-ageing features and the long-lasting performance of the MRPC technology for particle tracking and timing purposes. The measurements performed with the EEE array require excellent performance in terms of time and spatial resolution, efficiency, tracking capability and stability. The data from two recent coordinated data taking periods, named Run 2 and Run 3, have been used to measure these quantities and the results are described, together with a comparison with expectations and with the results from a beam test performed in 2006 at CERN. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.03879v1-abstract-full').style.display = 'none'; document.getElementById('1806.03879v1-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 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">6 pages, 4 figures, conference RPC 2018</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1805.04177">arXiv:1805.04177</a> <span> [<a href="https://arxiv.org/pdf/1805.04177">pdf</a>, <a href="https://arxiv.org/format/1805.04177">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div 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/10.1088/1748-0221/13/08/P08026">10.1088/1748-0221/13/08/P08026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Extreme Energy Events experiment: an overview of the telescopes performance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+C">C. Avanzini</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+L+B">L. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+L">L. Baldini</a>, <a href="/search/physics?searchtype=author&query=Batignani%2C+G">G. Batignani</a>, <a href="/search/physics?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/physics?searchtype=author&query=Boi%2C+S">S. Boi</a>, <a href="/search/physics?searchtype=author&query=Bossini%2C+E">E. Bossini</a>, <a href="/search/physics?searchtype=author&query=Carnesecchi%2C+F">F. Carnesecchi</a>, <a href="/search/physics?searchtype=author&query=Chiavassa%2C+A">A. Chiavassa</a>, <a href="/search/physics?searchtype=author&query=Cicalo%2C+C">C. Cicalo</a>, <a href="/search/physics?searchtype=author&query=Cifarelli%2C+L">L. Cifarelli</a>, <a href="/search/physics?searchtype=author&query=Coccetti%2C+F">F. Coccetti</a>, <a href="/search/physics?searchtype=author&query=Coccia%2C+E">E. Coccia</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=De+Gruttola%2C+D">D. De Gruttola</a>, <a href="/search/physics?searchtype=author&query=De+Pasquale%2C+S">S. De Pasquale</a>, <a href="/search/physics?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/physics?searchtype=author&query=Frolov%2C+V">V. Frolov</a>, <a href="/search/physics?searchtype=author&query=Galante%2C+L">L. Galante</a>, <a href="/search/physics?searchtype=author&query=Galeotti%2C+P">P. Galeotti</a>, <a href="/search/physics?searchtype=author&query=Garbini%2C+M">M. Garbini</a>, <a href="/search/physics?searchtype=author&query=Gemme%2C+G">G. Gemme</a>, <a href="/search/physics?searchtype=author&query=Gnesi%2C+I">I. Gnesi</a>, <a href="/search/physics?searchtype=author&query=Grazzi%2C+S">S. Grazzi</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="1805.04177v1-abstract-short" style="display: inline;"> Multigap Resistive Plate Chambers (MRPC). The EEE network is composed, so far, of 53 telescopes, each made of three MRPC detectors; it is organized in clusters and single telescope stations distributed all over the Italian territory and installed in High Schools, covering an area larger than $3\times10^{5}$ km$^{2}$. The study of Extensive Air Showers (EAS), that is one of the goal of the project,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.04177v1-abstract-full').style.display = 'inline'; document.getElementById('1805.04177v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1805.04177v1-abstract-full" style="display: none;"> Multigap Resistive Plate Chambers (MRPC). The EEE network is composed, so far, of 53 telescopes, each made of three MRPC detectors; it is organized in clusters and single telescope stations distributed all over the Italian territory and installed in High Schools, covering an area larger than $3\times10^{5}$ km$^{2}$. The study of Extensive Air Showers (EAS), that is one of the goal of the project, requires excellent performance in terms of time and spatial resolution, efficiency, tracking capability and long term stability. The data from two recent coordinated data taking periods, named Run 2 and Run 3, have been used to measure these quantities and the results are here reported, together with a comparison with expectations and with the results from a beam test performed in 2006 at CERN. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.04177v1-abstract-full').style.display = 'none'; document.getElementById('1805.04177v1-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 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">21 pages, 17 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/1801.04688">arXiv:1801.04688</a> <span> [<a href="https://arxiv.org/pdf/1801.04688">pdf</a>, <a href="https://arxiv.org/format/1801.04688">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-018-5845-6">10.1140/epjc/s10052-018-5845-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The design of the MEG II experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Baldini%2C+A+M">A. M. Baldini</a>, <a href="/search/physics?searchtype=author&query=Baracchini%2C+E">E. Baracchini</a>, <a href="/search/physics?searchtype=author&query=Bemporad%2C+C">C. Bemporad</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+F">F. Berg</a>, <a href="/search/physics?searchtype=author&query=Biasotti%2C+M">M. Biasotti</a>, <a href="/search/physics?searchtype=author&query=Boca%2C+G">G. Boca</a>, <a href="/search/physics?searchtype=author&query=Cattaneo%2C+P+W">P. W. Cattaneo</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cei%2C+F">F. Cei</a>, <a href="/search/physics?searchtype=author&query=Chiappini%2C+M">M. Chiappini</a>, <a href="/search/physics?searchtype=author&query=Chiarello%2C+G">G. Chiarello</a>, <a href="/search/physics?searchtype=author&query=Chiri%2C+C">C. Chiri</a>, <a href="/search/physics?searchtype=author&query=Cocciolo%2C+G">G. Cocciolo</a>, <a href="/search/physics?searchtype=author&query=Corvaglia%2C+A">A. Corvaglia</a>, <a href="/search/physics?searchtype=author&query=de+Bari%2C+A">A. de Bari</a>, <a href="/search/physics?searchtype=author&query=De+Gerone%2C+M">M. De Gerone</a>, <a href="/search/physics?searchtype=author&query=D%27Onofrio%2C+A">A. D'Onofrio</a>, <a href="/search/physics?searchtype=author&query=Francesconi%2C+M">M. Francesconi</a>, <a href="/search/physics?searchtype=author&query=Fujii%2C+Y">Y. Fujii</a>, <a href="/search/physics?searchtype=author&query=Galli%2C+L">L. Galli</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+F">F. Gatti</a>, <a href="/search/physics?searchtype=author&query=Grancagnolo%2C+F">F. Grancagnolo</a>, <a href="/search/physics?searchtype=author&query=Grassi%2C+M">M. Grassi</a>, <a href="/search/physics?searchtype=author&query=Grigoriev%2C+D+N">D. N. Grigoriev</a>, <a href="/search/physics?searchtype=author&query=Hildebrandt%2C+M">M. Hildebrandt</a> , et al. (55 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="1801.04688v1-abstract-short" style="display: inline;"> The MEG experiment, designed to search for the mu+->e+ gamma decay at a 10^-13 sensitivity level, completed data taking in 2013. In order to increase the sensitivity reach of the experiment by an order of magnitude to the level of 6 x 10-14 for the branching ratio, a total upgrade, involving substantial changes to the experiment, has been undertaken, known as MEG II. We present both the motivation… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1801.04688v1-abstract-full').style.display = 'inline'; document.getElementById('1801.04688v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1801.04688v1-abstract-full" style="display: none;"> The MEG experiment, designed to search for the mu+->e+ gamma decay at a 10^-13 sensitivity level, completed data taking in 2013. In order to increase the sensitivity reach of the experiment by an order of magnitude to the level of 6 x 10-14 for the branching ratio, a total upgrade, involving substantial changes to the experiment, has been undertaken, known as MEG II. We present both the motivation for the upgrade and a detailed overview of the design of the experiment and of the expected detector performance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1801.04688v1-abstract-full').style.display = 'none'; document.getElementById('1801.04688v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">61 pages and 97 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 78 (380) (2018) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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