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CERN Document Server 77 records found  1 - 10nextend  jump to record: Search took 0.57 seconds. 
1.
Measurement of the fractional radiation length of a pixel module for the CMS Phase-2 upgrade via the multiple scattering of positrons / Tracker Group of the CMS Collaboration
High-luminosity particle collider experiments such as the ones planned at the High-Luminosity Large Hadron Collider require ever-greater vertexing precision of the tracking detectors, necessitating also reductions in the material budget of the detectors. Traditionally, the fractional radiation length ($x/X_0$) of detectors is either estimated using known properties of the constituent materials, or measured in dedicated runs of the final detector. [...]
arXiv:2407.13721; CERN-CMS-NOTE-2024-005.- Geneva : CERN, 2024-10-16 - 42 p. - Published in : JINST 19 (2024) P10023 Fulltext: cc31400e03af7929e4432fc48d857519 - PDF; NOTE2024_005 - PDF; 2407.13721 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
2.
Using graph neural networks to reconstruct charged pion showers in the CMS High Granularity Calorimeter / CMS HGCAL Collaboration
A novel method to reconstruct the energy of hadronic showers in the CMS High Granularity Calorimeter (HGCAL) is presented. The HGCAL is a sampling calorimeter with very fine transverse and longitudinal granularity. [...]
arXiv:2406.11937.- 2024-11-28 - 27 p. - Published in : JINST 19 (2024) P11025 Fulltext: 2406.11937 - PDF; b5503c82fab7782294f84cb336b7e20a - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
3.
Beam Test Performance Studies of CMS Phase-2 Outer Tracker Module Prototypes / Tracker Group of the CMS Collaboration
A new tracking detector will be installed as part of the Phase-2 upgrade of the CMS detector for the high-luminosity LHC era. This tracking detector includes the Inner Tracker, equipped with silicon pixel sensor modules, and the Outer Tracker, consisting of modules with two parallel stacked silicon sensors. [...]
arXiv:2404.08794.- 2024-10-30 - 40 p. - Published in : JINST 19 (2024) P10032 Fulltext: PDF; Fulltext from Publisher: PDF;
4.
Timing Performance of the CMS High Granularity Calorimeter Prototype / CMS HGCAL Collaboration
This paper describes the experience with the calibration, reconstruction and evaluation of the timing capabilities of the CMS HGCAL prototype in the beam tests in 2018. The calibration procedure includes multiple steps and corrections ranging from tens of nanoseconds to a few hundred picoseconds. [...]
arXiv:2312.14622.- 2024-04-11 - 22 p. - Published in : JINST 19 (2024) P04015 Fulltext: PDF; Fulltext from Publisher: PDF;
5.
Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary Terrestrial Very-Long-Baseline Atom Interferometry Workshop (TVLBAI 2023)   13 - 14 Mar 2023  - CERN, Geneva, Switzerland  / Abend, Sven (Leibniz U., Hannover); Allard, Baptiste (LCAR, Toulouse); Alonso, Iván (Balearic Islands U.); Antoniadis, John (Crete U.); Araújo, Henrique (Imperial Coll., London); Arduini, Gianluigi (CERN); Arnold, Aidan S. (SUPA, UK ; Strathclyde U.); Aßmann, Tobias (Ulm U.); Augst, Nadja (DLR, Neustrelitz); Badurina, Leonardo (King's Coll. London ; Caltech) et al.
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter and gravitational waves. [...]
2023 - 99 p. arXiv:2310.08183 - Published in : 10.1116/5.0185291
10.1116/5.0185291
6.
Evaluation of planar silicon pixel sensors with the RD53A readout chip for the Phase-2 Upgrade of the CMS Inner Tracker / CMS Collaboration
The Large Hadron Collider (LHC) at CERN will undergo an upgrade in order to increase its luminosity to $7.5 \times 10^{34}$ cm$^{-2}$s$^{-1}$. The increased luminosity during this High-Luminosity running phase\\ (HL-LHC), starting around 2029, means a higher rate of proton-proton interactions, hence a larger ionizing dose and particle fluence for the detectors. The current tracking system of the CMS experiment will be fully replaced in order to cope with the new operating conditions. [...]
arXiv:2307.01580; CERN-CMS-NOTE-2023-005.- Geneva : CERN, 2023-11-17 - 29 p. - Published in : JINST 18 (2023) P11015 Fulltext: dc1e9cca1e7c6f6dae97cbda67121cb1 - PDF; 2307.01580 - PDF; NOTE2023_005 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
7.
Evaluation of HPK $n^+$-$p$ planar pixel sensors for the CMS Phase-2 upgrade / Tracker Group of the CMS Collaboration
To cope with the challenging environment of the planned high luminosity upgrade of the Large Hadron Collider (HL-LHC), scheduled to start operation in 2029, CMS will replace its entire tracking system. The requirements for the tracker are largely determined by the long operation time of 10~years with an instantaneous peak luminosity of up to $7.5\times 10^{34}$~cm$^{-2}$s$^{-1}$ in the ultimate performance scenario. Depending on the radial distance from the interaction point, the silicon sensors will receive a particle fluence corresponding to a non-ionizing energy loss of up to $\Phi_{\text{eq}} = 3.5\times 10^{16}$~cm$^{-2}$. [...]
arXiv:2212.04793; CMS-NOTE-2023-002.- Geneva : CERN, 2023-05-09 - 18 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1053 (2023) 168326 Fulltext: NOTE2023_002 - PDF; 2212.04793 - PDF; 826201a370cac8eb0cb4bd0a37aa14d9 - PDF; External link: Fermilab Library Server
8.
Neutron irradiation and electrical characterisation of the first 8” silicon pad sensor prototypes for the CMS calorimeter endcap upgrade / CMS HGCAL Collaboration
As part of its HL-LHC upgrade program, the CMS collaboration is replacing its existing endcap calorimeters with a high-granularity calorimeter (CE). The new calorimeter is a sampling calorimeter with unprecedented transverse and longitudinal readout for both electromagnetic and hadronic compartments. [...]
arXiv:2209.10159.- 2023-08-24 - 19 p.
- Published in : JINST Fulltext: 33df321261c1de65891ca8b290f4b7a2 - PDF; 2209.10159 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
9.
Test beam performance of a CBC3-based mini-module for the Phase-2 CMS Outer Tracker before and after neutron irradiation / Tracker Group of the CMS Collaboration
The Large Hadron Collider (LHC) at CERN will undergo major upgrades to increase the instantaneous luminosity up to 5-7.5$\times10^{34}$ cm$^{-2}$s$^{-1}$. This High Luminosity upgrade of the LHC (HL-LHC) will deliver a total of 3000-4000 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of 13-14 TeV. [...]
arXiv:2205.00961.- 2023-04-04 - 31 p. - Published in : JINST 18 (2023) P04001 Fulltext: jt - PDF; FERMILAB-PUB-22-355-CMS-PPD-SCD - PDF; 2205.00961 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
10.
Performance of the CMS High Granularity Calorimeter prototype to charged pion beams of 20–300 GeV/c / CALICE Collaboration
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. [...]
arXiv:2211.04740.- 2023-08-14 - 31 p. - Published in : JINST 18 (2023) P08014 Fulltext: 2211.04740 - PDF; FERMILAB-PUB-23-299-ETD-PPD - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server

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