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CMS Conference Reports

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2021-06-08
20:16
Study of Interpad-gap of FBK (UFSD3) and HPK 3.1 Type sensors with Transient Current Technique / Bharthuar, Shudhashil (Helsinki Inst. of Phys.) /CMS Collaboration
The Phase-2 upgrade of the Large Hadron Collider (LHC) to High-Luminosity LHC (HL-LHC) allows an increase in the operational luminosity value by a factor of 5--7 that will result in delivering 3000~fb$^{-1}$ or more integrated luminosity. Due to high luminosity, the number of interactions per bunch crossings (pileup) will increase up to a value of 140--200. [...]
CMS-CR-2020-051.- Geneva : CERN, 2020 - 21 p. Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019

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2021-04-28
20:59
Tracker alignment of the CMS detector / Connor, Patrick (Hamburg U.) /CMS Collaboration
The positions of the nearly twenty-thousand silicon sensors of the CMS central tracking system must be determined with a precision better than their intrinsic resolution in order to provide an optimal reconstruction of charged particle trajectories. The procedure, referred to as the alignment, includes also the adjustment of the orientations and the determination of the deviation from flatness of the sensor surfaces. Data-driven methods used to carefully align the detector and validate the alignment will be presented with CMS Run 2 data, collected from 2016 to 2018. [...]
CMS-CR-2020-232.- Geneva : CERN, 2020 - 7 p. Fulltext: PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020

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2021-04-28
20:49
The CMS tracker upgrade for the \\ High Luminosity LHC / Klein, Katja (Aachen, Tech. Hochsch.)
The CMS detector features the world's largest silicon tracker, comprising a strip and a pixel detector. However, the CMS tracker is expected to reach the end of its lifetime after Run 3 of the LHC, and a new device will be installed during Long Shutdown 3. [...]
CMS-CR-2020-222.- Geneva : CERN, 2020 - 7 p. Fulltext: PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020

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2021-04-28
20:43
Status of the Phase-2 Tracker Upgrade of the CMS experiment at the HL-LHC / Calligaris, Luigi (SAO_PAULO) /CMS Collaboration
The Phase-2 Upgrade of the CMS experiment is designed to prepare its detectors for operations at the High Luminosity Large Hadron Collider (HL-LHC). The upgraded collider, scheduled to start operations in 2027, will lead to challenging conditions in terms of data throughput, pile-up and radiation. [...]
CMS-CR-2020-167.- Geneva : CERN, 2020 - 8 p. Fulltext: PDF;
In : 5th International Conference on Particle Physics and Astrophysics (ICPPA), Moscow, Russian Federation, 5 - 9 Oct 2020

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2021-02-26
15:10
The TOFHIR2 readout ASIC of the CMS Barrel MIP Timing Detector / Joao Varela for the TOFHIR team
The CMS Detector will be upgraded for the HL-LHC to include a MIP Timing Detector (MTD). The MTD will consist of barrel and endcap timing layers, BTL and ETL respectively, providing precision timing of charged particles. [...]
CMS-CR-2021-001.- Geneva : CERN, 2021 - 8 p. Fulltext: PDF;
In : 2020 IEEE Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC), Boston, United States, 31 Oct - 7 Nov 2020

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2020-12-17
22:32
OT-$\mu$DTC, a test bench for testing CMS Outer Tracker Phase-2 module prototypes / Caratelli, Alessandro (CERN) ; Ceresa, Davide (CERN) ; De Clercq, Jarne Theo (Vrije U., Brussels) ; Galbit, Geoffrey Christian (Lyon, IPN) ; Haranko, Mykyta (CERN) ; Jain, Sandhya (Lyon, IPN) ; Caponetto, Luigi (Lyon, IPN) ; Makarenko, Inna (Brussels U.) ; Mersi, Stefano (CERN) ; Nodari, Benedetta (Lyon, IPN) et al.
The Compact Muon Solenoid (CMS) experiment plans to replace its strip tracker system with a completely new Outer Tracker system to cope with the higher luminosity, compared to Run 2 operation, provided by the HL-LHC. This CMS Phase-2 Outer Tracker will be build up from two types of modules both consisting out of two parallel silicon sensors separated by a few millimetres. [...]
CMS-CR-2019-254.- Geneva : CERN, 2019 - 11 p. - Published in : PoS EPS-HEP2019 (2020) 170 Fulltext: PDF; Fulltext from publisher: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.170

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2020-09-10
19:08
Recording and reconstructing 10 billion unbiased b hadron decays in CMS / Bainbridge, Robert (Imperial Coll., London) /CMS Collaboration
The CMS experiment has recorded a high-purity sample of 10 billion unbiased b hadron decays. The CMS trigger and data acquisition systems were configured to deliver a custom data stream at an average throughput of 2 GB/s, which was parked prior to reconstruction. [...]
CMS-CR-2020-081.- Geneva : CERN, 2020 - 9 p. - Published in : EPJ Web Conf. 245 (2020) 01025 Fulltext: PDF; Fulltext from publisher: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.01025

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2020-08-31
14:07
The Phase-2 Upgrade of the CMS Outer Tracker / Roy Chowdhury, Suvankar (INFN, Pisa ; Pisa, Scuola Normale Superiore) /CMS Collaboration
The Large Hadron Collider\,(LHC), at CERN will undergo major upgrades to be able to deliver peak instantaneous luminosities of about $5-7.5\times 10^{34}~\mathrm{cm}^{-2}\mathrm{s}^{-1}$ by 2027. This High Luminosity upgrade of the LHC (HL-LHC) is expected to deliver a total of about $3000-4000~\mathrm{fb}^{-1}$ during ten years of operation. [...]
CMS-CR-2020-052.- Geneva : CERN, 2020 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 979 (2020) 164432 Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164432

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2020-08-31
14:07
Development of planar pixel sensors for the CMS Inner Tracker at the High-Luminosity LHC / Steinbrueck, Georg (Hamburg U.) /CMS Tracker Group Collaboration
The LHC is planning an upgrade program which will bring the luminosity up to about $7.5\times10^{34}\,$cm$^{-2}$s$^{-1}$ in 2027, with the goal of delivering an integrated luminosity of 3000 or even 4000~fb$^{-1}$ by the end of 2037. This High Luminosity phase, HL-LHC, will present new challenges of higher data rates and unprecedented radiation levels for the pixel detector. [...]
CMS-CR-2020-073.- Geneva : CERN, 2020 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 978 (2020) 164438 Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164438

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2020-08-31
14:07
Serial powering in four-chip prototype RD53A modules for Phase 2 upgrade of the CMS pixel detector / Perovic, Vasilije (Zurich, ETH) /CMS Tracker Group Collaboration
Serial powering is the baseline choice for the upgrade of the CMS pixel detector for the High Luminosity LHC. The first results with the four-chip prototype pixel detector modules based on the demonstrator \SI{65}{nm} CMOS technology RD53A chip are presented. [...]
CMS-CR-2020-047.- Geneva : CERN, 2020 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 978 (2020) 164436 Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164436

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