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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/1512.08529">arXiv:1512.08529</a> <span> [<a href="https://arxiv.org/pdf/1512.08529">pdf</a>, <a href="https://arxiv.org/ps/1512.08529">ps</a>, <a href="https://arxiv.org/format/1512.08529">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"> A novel application of Fiber Bragg Grating (FBG) sensors in MPGD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbaneo%2C+D">D. Abbaneo</a>, <a href="/search/physics?searchtype=author&query=Abbas%2C+M">M. Abbas</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Abdelalim%2C+A+A">A. A. Abdelalim</a>, <a href="/search/physics?searchtype=author&query=Akl%2C+M+A">M. Abi Akl</a>, <a href="/search/physics?searchtype=author&query=Aboamer%2C+O">O. Aboamer</a>, <a href="/search/physics?searchtype=author&query=Acosta%2C+D">D. Acosta</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+A">A. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+W">W. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+W">W. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aleksandrov%2C+A">A. Aleksandrov</a>, <a href="/search/physics?searchtype=author&query=Aly%2C+R">R. Aly</a>, <a href="/search/physics?searchtype=author&query=Altieri%2C+P">P. Altieri</a>, <a href="/search/physics?searchtype=author&query=Asawatangtrakuldee%2C+C">C. Asawatangtrakuldee</a>, <a href="/search/physics?searchtype=author&query=Aspell%2C+P">P. Aspell</a>, <a href="/search/physics?searchtype=author&query=Assran%2C+Y">Y. Assran</a>, <a href="/search/physics?searchtype=author&query=Awan%2C+I">I. Awan</a>, <a href="/search/physics?searchtype=author&query=Bally%2C+S">S. Bally</a>, <a href="/search/physics?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/physics?searchtype=author&query=Banerjee%2C+S">S. Banerjee</a>, <a href="/search/physics?searchtype=author&query=Barashko%2C+V">V. Barashko</a>, <a href="/search/physics?searchtype=author&query=Barria%2C+P">P. Barria</a>, <a href="/search/physics?searchtype=author&query=Bencze%2C+G">G. Bencze</a>, <a href="/search/physics?searchtype=author&query=Beni%2C+N">N. Beni</a>, <a href="/search/physics?searchtype=author&query=Benussi%2C+L">L. Benussi</a> , et al. (133 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="1512.08529v1-abstract-short" style="display: inline;"> We present a novel application of Fiber Bragg Grating (FBG) sensors in the construction and characterisation of Micro Pattern Gaseous Detector (MPGD), with particular attention to the realisation of the largest triple (Gas electron Multiplier) GEM chambers so far operated, the GE1/1 chambers of the CMS experiment at LHC. The GE1/1 CMS project consists of 144 GEM chambers of about 0.5 m2 active are… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.08529v1-abstract-full').style.display = 'inline'; document.getElementById('1512.08529v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.08529v1-abstract-full" style="display: none;"> We present a novel application of Fiber Bragg Grating (FBG) sensors in the construction and characterisation of Micro Pattern Gaseous Detector (MPGD), with particular attention to the realisation of the largest triple (Gas electron Multiplier) GEM chambers so far operated, the GE1/1 chambers of the CMS experiment at LHC. The GE1/1 CMS project consists of 144 GEM chambers of about 0.5 m2 active area each, employing three GEM foils per chamber, to be installed in the forward region of the CMS endcap during the long shutdown of LHC in 2108-2019. The large active area of each GE1/1 chamber consists of GEM foils that are mechanically stretched in order to secure their flatness and the consequent uniform performance of the GE1/1 chamber across its whole active surface. So far FBGs have been used in high energy physics mainly as high precision positioning and re-positioning sensors and as low cost, easy to mount, low space consuming temperature sensors. FBGs are also commonly used for very precise strain measurements in material studies. In this work we present a novel use of FBGs as flatness and mechanical tensioning sensors applied to the wide GEM foils of the GE1/1 chambers. A network of FBG sensors have been used to determine the optimal mechanical tension applied and to characterise the mechanical tension that should be applied to the foils. We discuss the results of the test done on a full-sized GE1/1 final prototype, the studies done to fully characterise the GEM material, how this information was used to define a standard assembly procedure and possible future developments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.08529v1-abstract-full').style.display = 'none'; document.getElementById('1512.08529v1-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 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, 4 figures, presented by Luigi Benussi at MPGD 2015 (Trieste, Italy). arXiv admin note: text overlap with arXiv:1512.08481</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> INFN-15-10/LNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.08481">arXiv:1512.08481</a> <span> [<a href="https://arxiv.org/pdf/1512.08481">pdf</a>, <a href="https://arxiv.org/ps/1512.08481">ps</a>, <a href="https://arxiv.org/format/1512.08481">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/10.1016/j.nima.2016.01.059">10.1016/j.nima.2016.01.059 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fiber Bragg Grating (FBG) sensors as flatness and mechanical stretching sensors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbaneo%2C+D">D. Abbaneo</a>, <a href="/search/physics?searchtype=author&query=Abbas%2C+M">M. Abbas</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Abdelalim%2C+A+A">A. A. Abdelalim</a>, <a href="/search/physics?searchtype=author&query=Akl%2C+M+A">M. Abi Akl</a>, <a href="/search/physics?searchtype=author&query=Aboamer%2C+O">O. Aboamer</a>, <a href="/search/physics?searchtype=author&query=Acosta%2C+D">D. Acosta</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+A">A. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+W">W. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+W">W. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aleksandrov%2C+A">A. Aleksandrov</a>, <a href="/search/physics?searchtype=author&query=Aly%2C+R">R. Aly</a>, <a href="/search/physics?searchtype=author&query=Altieri%2C+P">P. Altieri</a>, <a href="/search/physics?searchtype=author&query=Asawatangtrakuldee%2C+C">C. Asawatangtrakuldee</a>, <a href="/search/physics?searchtype=author&query=Aspell%2C+P">P. Aspell</a>, <a href="/search/physics?searchtype=author&query=Assran%2C+Y">Y. Assran</a>, <a href="/search/physics?searchtype=author&query=Awan%2C+I">I. Awan</a>, <a href="/search/physics?searchtype=author&query=Bally%2C+S">S. Bally</a>, <a href="/search/physics?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/physics?searchtype=author&query=Banerjee%2C+S">S. Banerjee</a>, <a href="/search/physics?searchtype=author&query=Barashko%2C+V">V. Barashko</a>, <a href="/search/physics?searchtype=author&query=Barria%2C+P">P. Barria</a>, <a href="/search/physics?searchtype=author&query=Bencze%2C+G">G. Bencze</a>, <a href="/search/physics?searchtype=author&query=Beni%2C+N">N. Beni</a>, <a href="/search/physics?searchtype=author&query=Benussi%2C+L">L. Benussi</a> , et al. (133 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="1512.08481v1-abstract-short" style="display: inline;"> A novel approach which uses Fibre Bragg Grating (FBG) sensors has been utilised to assess and monitor the flatness of Gaseous Electron Multipliers (GEM) foils. The setup layout and preliminary results are presented. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.08481v1-abstract-full" style="display: none;"> A novel approach which uses Fibre Bragg Grating (FBG) sensors has been utilised to assess and monitor the flatness of Gaseous Electron Multipliers (GEM) foils. The setup layout and preliminary results are presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.08481v1-abstract-full').style.display = 'none'; document.getElementById('1512.08481v1-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 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Two pages, one figure. Presented by Luigi Benussi (corresponding author) to Elba 2015 conference</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Frascati Preprint INFN-15-09/LNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1412.0228">arXiv:1412.0228</a> <span> [<a href="https://arxiv.org/pdf/1412.0228">pdf</a>, <a href="https://arxiv.org/format/1412.0228">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"> Performance of a Large-Area GEM Detector Prototype for the Upgrade of the CMS Muon Endcap System </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbaneo%2C+D">D. Abbaneo</a>, <a href="/search/physics?searchtype=author&query=Abbas%2C+M">M. Abbas</a>, <a href="/search/physics?searchtype=author&query=Abbrescia%2C+M">M. Abbrescia</a>, <a href="/search/physics?searchtype=author&query=Abdelalim%2C+A+A">A. A. Abdelalim</a>, <a href="/search/physics?searchtype=author&query=Akl%2C+M+A">M. Abi Akl</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+W">W. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+W">W. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Altieri%2C+P">P. Altieri</a>, <a href="/search/physics?searchtype=author&query=Aly%2C+R">R. Aly</a>, <a href="/search/physics?searchtype=author&query=Asawatangtrakuldee%2C+C">C. Asawatangtrakuldee</a>, <a href="/search/physics?searchtype=author&query=Ashfaq%2C+A">A. Ashfaq</a>, <a href="/search/physics?searchtype=author&query=Aspell%2C+P">P. Aspell</a>, <a href="/search/physics?searchtype=author&query=Assran%2C+Y">Y. Assran</a>, <a href="/search/physics?searchtype=author&query=Awan%2C+I">I. Awan</a>, <a href="/search/physics?searchtype=author&query=Bally%2C+S">S. Bally</a>, <a href="/search/physics?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/physics?searchtype=author&query=Banerjee%2C+S">S. Banerjee</a>, <a href="/search/physics?searchtype=author&query=Barria%2C+P">P. Barria</a>, <a href="/search/physics?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/physics?searchtype=author&query=Bhopatkar%2C+V">V. Bhopatkar</a>, <a href="/search/physics?searchtype=author&query=Bianco%2C+S">S. Bianco</a>, <a href="/search/physics?searchtype=author&query=Bos%2C+J">J. Bos</a>, <a href="/search/physics?searchtype=author&query=Bouhali%2C+O">O. Bouhali</a>, <a href="/search/physics?searchtype=author&query=Braibant%2C+S">S. Braibant</a>, <a href="/search/physics?searchtype=author&query=Buontempo%2C+S">S. Buontempo</a> , et al. (113 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="1412.0228v2-abstract-short" style="display: inline;"> Gas Electron Multiplier (GEM) technology is being considered for the forward muon upgrade of the CMS experiment in Phase 2 of the CERN LHC. Its first implementation is planned for the GE1/1 system in the $1.5 < \mid畏\mid < 2.2$ region of the muon endcap mainly to control muon level-1 trigger rates after the second long LHC shutdown. A GE1/1 triple-GEM detector is read out by 3,072 radial strips wi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1412.0228v2-abstract-full').style.display = 'inline'; document.getElementById('1412.0228v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1412.0228v2-abstract-full" style="display: none;"> Gas Electron Multiplier (GEM) technology is being considered for the forward muon upgrade of the CMS experiment in Phase 2 of the CERN LHC. Its first implementation is planned for the GE1/1 system in the $1.5 < \mid畏\mid < 2.2$ region of the muon endcap mainly to control muon level-1 trigger rates after the second long LHC shutdown. A GE1/1 triple-GEM detector is read out by 3,072 radial strips with 455 $渭$rad pitch arranged in eight $畏$-sectors. We assembled a full-size GE1/1 prototype of 1m length at Florida Tech and tested it in 20-120 GeV hadron beams at Fermilab using Ar/CO$_{2}$ 70:30 and the RD51 scalable readout system. Four small GEM detectors with 2-D readout and an average measured azimuthal resolution of 36 $渭$rad provided precise reference tracks. Construction of this largest GEM detector built to-date is described. Strip cluster parameters, detection efficiency, and spatial resolution are studied with position and high voltage scans. The plateau detection efficiency is [97.1 $\pm$ 0.2 (stat)]\%. The azimuthal resolution is found to be [123.5 $\pm$ 1.6 (stat)] $渭$rad when operating in the center of the efficiency plateau and using full pulse height information. The resolution can be slightly improved by $\sim$ 10 $渭$rad when correcting for the bias due to discrete readout strips. The CMS upgrade design calls for readout electronics with binary hit output. When strip clusters are formed correspondingly without charge-weighting and with fixed hit thresholds, a position resolution of [136.8 $\pm$ 2.5 stat] $渭$rad is measured, consistent with the expected resolution of strip-pitch/$\sqrt{12}$ = 131.3 $渭$rad. Other $畏$-sectors of the detector show similar response and performance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1412.0228v2-abstract-full').style.display = 'none'; document.getElementById('1412.0228v2-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 December, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 November, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 32 figures, submitted to Proc. 2014 IEEE Nucl. Sci. Symposium, Seattle, WA, reference added</span> </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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