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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/2211.04740">arXiv:2211.04740</a> <span> [<a href="https://arxiv.org/pdf/2211.04740">pdf</a>, <a href="https://arxiv.org/format/2211.04740">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 the CMS High Granularity Calorimeter prototype to charged pion beams of 20$-$300 GeV/c </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Acar%2C+B">B. Acar</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adloff%2C+C">C. Adloff</a>, <a href="/search/physics?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/physics?searchtype=author&query=Akchurin%2C+N">N. Akchurin</a>, <a href="/search/physics?searchtype=author&query=Akg%C3%BCn%2C+B">B. Akg眉n</a>, <a href="/search/physics?searchtype=author&query=Alhusseini%2C+M">M. Alhusseini</a>, <a href="/search/physics?searchtype=author&query=Alison%2C+J">J. Alison</a>, <a href="/search/physics?searchtype=author&query=de+Almeida%2C+J+P+F+d+s+S">J. P. Figueiredo de sa Sousa de Almeida</a>, <a href="/search/physics?searchtype=author&query=de+Almeida%2C+P+G+D">P. G. Dias de Almeida</a>, <a href="/search/physics?searchtype=author&query=Alpana%2C+A">A. Alpana</a>, <a href="/search/physics?searchtype=author&query=Alyari%2C+M">M. Alyari</a>, <a href="/search/physics?searchtype=author&query=Andreev%2C+I">I. Andreev</a>, <a href="/search/physics?searchtype=author&query=Aras%2C+U">U. Aras</a>, <a href="/search/physics?searchtype=author&query=Aspell%2C+P">P. Aspell</a>, <a href="/search/physics?searchtype=author&query=Atakisi%2C+I+O">I. O. Atakisi</a>, <a href="/search/physics?searchtype=author&query=Bach%2C+O">O. Bach</a>, <a href="/search/physics?searchtype=author&query=Baden%2C+A">A. Baden</a>, <a href="/search/physics?searchtype=author&query=Bakas%2C+G">G. Bakas</a>, <a href="/search/physics?searchtype=author&query=Bakshi%2C+A">A. Bakshi</a>, <a href="/search/physics?searchtype=author&query=Banerjee%2C+S">S. Banerjee</a>, <a href="/search/physics?searchtype=author&query=DeBarbaro%2C+P">P. DeBarbaro</a>, <a href="/search/physics?searchtype=author&query=Bargassa%2C+P">P. Bargassa</a>, <a href="/search/physics?searchtype=author&query=Barney%2C+D">D. Barney</a>, <a href="/search/physics?searchtype=author&query=Beaudette%2C+F">F. Beaudette</a> , et al. (435 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.04740v2-abstract-short" style="display: inline;"> The upgrade of the CMS experiment for the high luminosity operation of the LHC comprises the replacement of the current endcap calorimeter by a high granularity sampling calorimeter (HGCAL). The electromagnetic section of the HGCAL is based on silicon sensors interspersed between lead and copper (or copper tungsten) absorbers. The hadronic section uses layers of stainless steel as an absorbing med… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.04740v2-abstract-full').style.display = 'inline'; document.getElementById('2211.04740v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.04740v2-abstract-full" style="display: none;"> The upgrade of the CMS experiment for the high luminosity operation of the LHC comprises the replacement of the current endcap calorimeter by a high granularity sampling calorimeter (HGCAL). The electromagnetic section of the HGCAL is based on silicon sensors interspersed between lead and copper (or copper tungsten) absorbers. The hadronic section uses layers of stainless steel as an absorbing medium and silicon sensors as an active medium in the regions of high radiation exposure, and scintillator tiles directly readout by silicon photomultipliers in the remaining regions. As part of the development of the detector and its readout electronic components, a section of a silicon-based HGCAL prototype detector along with a section of the CALICE AHCAL prototype was exposed to muons, electrons and charged pions in beam test experiments at the H2 beamline at the CERN SPS in October 2018. The AHCAL uses the same technology as foreseen for the HGCAL but with much finer longitudinal segmentation. The performance of the calorimeters in terms of energy response and resolution, longitudinal and transverse shower profiles is studied using negatively charged pions, and is compared to GEANT4 predictions. This is the first report summarizing results of hadronic showers measured by the HGCAL prototype using beam test data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.04740v2-abstract-full').style.display = 'none'; document.getElementById('2211.04740v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 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">Accepted for publication by 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/2111.06855">arXiv:2111.06855</a> <span> [<a href="https://arxiv.org/pdf/2111.06855">pdf</a>, <a href="https://arxiv.org/format/2111.06855">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/10.1088/1748-0221/17/05/P05022">10.1088/1748-0221/17/05/P05022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Response of a CMS HGCAL silicon-pad electromagnetic calorimeter prototype to 20-300 GeV positrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Acar%2C+B">B. Acar</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adloff%2C+C">C. Adloff</a>, <a href="/search/physics?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/physics?searchtype=author&query=Akchurin%2C+N">N. Akchurin</a>, <a href="/search/physics?searchtype=author&query=Akg%C3%BCn%2C+B">B. Akg眉n</a>, <a href="/search/physics?searchtype=author&query=Khan%2C+F+A">F. Alam Khan</a>, <a href="/search/physics?searchtype=author&query=Alhusseini%2C+M">M. Alhusseini</a>, <a href="/search/physics?searchtype=author&query=Alison%2C+J">J. Alison</a>, <a href="/search/physics?searchtype=author&query=Alpana%2C+A">A. Alpana</a>, <a href="/search/physics?searchtype=author&query=Altopp%2C+G">G. Altopp</a>, <a href="/search/physics?searchtype=author&query=Alyari%2C+M">M. Alyari</a>, <a href="/search/physics?searchtype=author&query=An%2C+S">S. An</a>, <a href="/search/physics?searchtype=author&query=Anagul%2C+S">S. Anagul</a>, <a href="/search/physics?searchtype=author&query=Andreev%2C+I">I. Andreev</a>, <a href="/search/physics?searchtype=author&query=Aspell%2C+P">P. Aspell</a>, <a href="/search/physics?searchtype=author&query=Atakisi%2C+I+O">I. O. Atakisi</a>, <a href="/search/physics?searchtype=author&query=Bach%2C+O">O. Bach</a>, <a href="/search/physics?searchtype=author&query=Baden%2C+A">A. Baden</a>, <a href="/search/physics?searchtype=author&query=Bakas%2C+G">G. Bakas</a>, <a href="/search/physics?searchtype=author&query=Bakshi%2C+A">A. Bakshi</a>, <a href="/search/physics?searchtype=author&query=Bannerjee%2C+S">S. Bannerjee</a>, <a href="/search/physics?searchtype=author&query=Bargassa%2C+P">P. Bargassa</a>, <a href="/search/physics?searchtype=author&query=Barney%2C+D">D. Barney</a>, <a href="/search/physics?searchtype=author&query=Beaudette%2C+F">F. Beaudette</a> , et al. (364 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.06855v3-abstract-short" style="display: inline;"> The Compact Muon Solenoid Collaboration is designing a new high-granularity endcap calorimeter, HGCAL, to be installed later this decade. As part of this development work, a prototype system was built, with an electromagnetic section consisting of 14 double-sided structures, providing 28 sampling layers. Each sampling layer has an hexagonal module, where a multipad large-area silicon sensor is glu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.06855v3-abstract-full').style.display = 'inline'; document.getElementById('2111.06855v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.06855v3-abstract-full" style="display: none;"> The Compact Muon Solenoid Collaboration is designing a new high-granularity endcap calorimeter, HGCAL, to be installed later this decade. As part of this development work, a prototype system was built, with an electromagnetic section consisting of 14 double-sided structures, providing 28 sampling layers. Each sampling layer has an hexagonal module, where a multipad large-area silicon sensor is glued between an electronics circuit board and a metal baseplate. The sensor pads of approximately 1 cm$^2$ are wire-bonded to the circuit board and are readout by custom integrated circuits. The prototype was extensively tested with beams at CERN's Super Proton Synchrotron in 2018. Based on the data collected with beams of positrons, with energies ranging from 20 to 300 GeV, measurements of the energy resolution and linearity, the position and angular resolutions, and the shower shapes are presented and compared to a detailed Geant4 simulation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.06855v3-abstract-full').style.display = 'none'; document.getElementById('2111.06855v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.06336">arXiv:2012.06336</a> <span> [<a href="https://arxiv.org/pdf/2012.06336">pdf</a>, <a href="https://arxiv.org/format/2012.06336">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"> Construction and commissioning of CMS CE prototype silicon modules </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Acar%2C+B">B. Acar</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adloff%2C+C">C. Adloff</a>, <a href="/search/physics?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/physics?searchtype=author&query=Akchurin%2C+N">N. Akchurin</a>, <a href="/search/physics?searchtype=author&query=Akg%C3%BCn%2C+B">B. Akg眉n</a>, <a href="/search/physics?searchtype=author&query=Alhusseini%2C+M">M. Alhusseini</a>, <a href="/search/physics?searchtype=author&query=Alison%2C+J">J. Alison</a>, <a href="/search/physics?searchtype=author&query=Altopp%2C+G">G. Altopp</a>, <a href="/search/physics?searchtype=author&query=Alyari%2C+M">M. Alyari</a>, <a href="/search/physics?searchtype=author&query=An%2C+S">S. An</a>, <a href="/search/physics?searchtype=author&query=Anagul%2C+S">S. Anagul</a>, <a href="/search/physics?searchtype=author&query=Andreev%2C+I">I. Andreev</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M">M. Andrews</a>, <a href="/search/physics?searchtype=author&query=Aspell%2C+P">P. Aspell</a>, <a href="/search/physics?searchtype=author&query=Atakisi%2C+I+A">I. A. Atakisi</a>, <a href="/search/physics?searchtype=author&query=Bach%2C+O">O. Bach</a>, <a href="/search/physics?searchtype=author&query=Baden%2C+A">A. Baden</a>, <a href="/search/physics?searchtype=author&query=Bakas%2C+G">G. Bakas</a>, <a href="/search/physics?searchtype=author&query=Bakshi%2C+A">A. Bakshi</a>, <a href="/search/physics?searchtype=author&query=Bargassa%2C+P">P. Bargassa</a>, <a href="/search/physics?searchtype=author&query=Barney%2C+D">D. Barney</a>, <a href="/search/physics?searchtype=author&query=Becheva%2C+E">E. Becheva</a>, <a href="/search/physics?searchtype=author&query=Behera%2C+P">P. Behera</a>, <a href="/search/physics?searchtype=author&query=Belloni%2C+A">A. Belloni</a> , et al. (307 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="2012.06336v1-abstract-short" style="display: inline;"> As part of its HL-LHC upgrade program, the CMS Collaboration is developing a High Granularity Calorimeter (CE) to replace the existing endcap calorimeters. The CE is a sampling calorimeter with unprecedented transverse and longitudinal readout for both electromagnetic (CE-E) and hadronic (CE-H) compartments. The calorimeter will be built with $\sim$30,000 hexagonal silicon modules. Prototype modul… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.06336v1-abstract-full').style.display = 'inline'; document.getElementById('2012.06336v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.06336v1-abstract-full" style="display: none;"> As part of its HL-LHC upgrade program, the CMS Collaboration is developing a High Granularity Calorimeter (CE) to replace the existing endcap calorimeters. The CE is a sampling calorimeter with unprecedented transverse and longitudinal readout for both electromagnetic (CE-E) and hadronic (CE-H) compartments. The calorimeter will be built with $\sim$30,000 hexagonal silicon modules. Prototype modules have been constructed with 6-inch hexagonal silicon sensors with cell areas of 1.1~$cm^2$, and the SKIROC2-CMS readout ASIC. Beam tests of different sampling configurations were conducted with the prototype modules at DESY and CERN in 2017 and 2018. This paper describes the construction and commissioning of the CE calorimeter prototype, the silicon modules used in the construction, their basic performance, and the methods used for their calibration. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.06336v1-abstract-full').style.display = 'none'; document.getElementById('2012.06336v1-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 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">35 pages, submitted to 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/2012.03876">arXiv:2012.03876</a> <span> [<a href="https://arxiv.org/pdf/2012.03876">pdf</a>, <a href="https://arxiv.org/format/2012.03876">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/10.1088/1748-0221/16/04/T04001">10.1088/1748-0221/16/04/T04001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The DAQ system of the 12,000 Channel CMS High Granularity Calorimeter Prototype </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Acar%2C+B">B. Acar</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adloff%2C+C">C. Adloff</a>, <a href="/search/physics?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/physics?searchtype=author&query=Akchurin%2C+N">N. Akchurin</a>, <a href="/search/physics?searchtype=author&query=Akg%C3%BCn%2C+B">B. Akg眉n</a>, <a href="/search/physics?searchtype=author&query=Alhusseini%2C+M">M. Alhusseini</a>, <a href="/search/physics?searchtype=author&query=Alison%2C+J">J. Alison</a>, <a href="/search/physics?searchtype=author&query=Altopp%2C+G">G. Altopp</a>, <a href="/search/physics?searchtype=author&query=Alyari%2C+M">M. Alyari</a>, <a href="/search/physics?searchtype=author&query=An%2C+S">S. An</a>, <a href="/search/physics?searchtype=author&query=Anagul%2C+S">S. Anagul</a>, <a href="/search/physics?searchtype=author&query=Andreev%2C+I">I. Andreev</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M">M. Andrews</a>, <a href="/search/physics?searchtype=author&query=Aspell%2C+P">P. Aspell</a>, <a href="/search/physics?searchtype=author&query=Atakisi%2C+I+A">I. A. Atakisi</a>, <a href="/search/physics?searchtype=author&query=Bach%2C+O">O. Bach</a>, <a href="/search/physics?searchtype=author&query=Baden%2C+A">A. Baden</a>, <a href="/search/physics?searchtype=author&query=Bakas%2C+G">G. Bakas</a>, <a href="/search/physics?searchtype=author&query=Bakshi%2C+A">A. Bakshi</a>, <a href="/search/physics?searchtype=author&query=Bargassa%2C+P">P. Bargassa</a>, <a href="/search/physics?searchtype=author&query=Barney%2C+D">D. Barney</a>, <a href="/search/physics?searchtype=author&query=Becheva%2C+E">E. Becheva</a>, <a href="/search/physics?searchtype=author&query=Behera%2C+P">P. Behera</a>, <a href="/search/physics?searchtype=author&query=Belloni%2C+A">A. Belloni</a> , et al. (307 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="2012.03876v2-abstract-short" style="display: inline;"> The CMS experiment at the CERN LHC will be upgraded to accommodate the 5-fold increase in the instantaneous luminosity expected at the High-Luminosity LHC (HL-LHC). Concomitant with this increase will be an increase in the number of interactions in each bunch crossing and a significant increase in the total ionising dose and fluence. One part of this upgrade is the replacement of the current endca… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.03876v2-abstract-full').style.display = 'inline'; document.getElementById('2012.03876v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.03876v2-abstract-full" style="display: none;"> The CMS experiment at the CERN LHC will be upgraded to accommodate the 5-fold increase in the instantaneous luminosity expected at the High-Luminosity LHC (HL-LHC). Concomitant with this increase will be an increase in the number of interactions in each bunch crossing and a significant increase in the total ionising dose and fluence. One part of this upgrade is the replacement of the current endcap calorimeters with a high granularity sampling calorimeter equipped with silicon sensors, designed to manage the high collision rates. As part of the development of this calorimeter, a series of beam tests have been conducted with different sampling configurations using prototype segmented silicon detectors. In the most recent of these tests, conducted in late 2018 at the CERN SPS, the performance of a prototype calorimeter equipped with ${\approx}12,000\rm{~channels}$ of silicon sensors was studied with beams of high-energy electrons, pions and muons. This paper describes the custom-built scalable data acquisition system that was built with readily available FPGA mezzanines and low-cost Raspberry PI computers. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.03876v2-abstract-full').style.display = 'none'; document.getElementById('2012.03876v2-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </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" 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