CERN Accelerating science

CERN Document Server Sök i 255 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.55 sekunder. 
1.
R&D; of the cluster finding algorithm for CMS iRPC detector / CMS Muon Collaboration
The Compact Muon Solenoid (CMS) experiment will undergo phase-II upgrade to enhance the capacity of detectors in the High-Luminosity Large Hadron Collider era. An important extension involves the installation of the Improved Resistive Plate Chambers (iRPC) in the most forward part of the endcap muon system. [...]
2024 - 12 p. - Published in : JINST 19 (2024) T12001
2.
Performance of the CMS high-level trigger during LHC Run 2 / CMS Collaboration
The CERN LHC provided proton and heavy ion collisions during its Run 2 operation period from 2015 to 2018. Proton-proton collisions reached a peak instantaneous luminosity of 2.1 $ \times $ 10$^{34}$ cm$^{-2}$s$^{-1} $, twice the initial design value, at $ \sqrt{s}= $ 13 TeV. [...]
arXiv:2410.17038; CMS-TRG-19-001; CERN-EP-2024-259; CMS-TRG-19-001-003.- Geneva : CERN, 2024-11-22 - 62 p. - Published in : JINST 19 (2024) P11021 Fulltext: CMS-TRG-19-001-arXiv - PDF; 2410.17038 - PDF; FERMILAB-PUB-24-0717-CMS - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
3.
Measurement of the background in the CMS muon detector in ${p}{p}$-collisions at $\sqrt{s} = 13$ $\,\text {Te}\hspace{-.08em}\text {V}$ / CMS Muon Collaboration
The CMS detector, including its muon system, has been operating at the CERN LHC in increasingly challenging conditions for about 15 years. The muon detector was designed to provide excellent triggering and track reconstruction for muons produced in proton–proton collisons at an instantaneous luminosity ($\mathcal {L}$) of $1 \times 10^{34}$ cm$^{-2}$s$^{-1}$. [...]
2024 - 43 p. - Published in : Eur. Phys. J. C 84 (2024) 955 Fulltext: PDF;
4.
CMS iRPC FEB development and validation / CMS Muon Collaboration
In view of the High Luminosity upgrade of the CERN LHC, the forward CMS Muon spectrometer will be extended with two new stations of improved Resistive Plate Chambers (iRPC) covering the pseudorapidity range from 1.8 to 2.4. Compared to the present RPC system, the gap thickness is reduced to lower the avalanche charge, and an innovative 2D strip readout geometry is proposed. [...]
2024 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1064 (2024) 169400 Fulltext: PDF;
In : 16th Workshop on Resistive Plate Chambers and Related Detectors (RPC 2022), CERN, Geneva, Switzerland, 26-30 Sep 2022, pp.169400
5.
Improved resistive plate chambers for HL-LHC upgrade of CMS / CMS Muon Collaboration
In view of the High Luminosity LHC, the CMS Muon system will be upgraded to sustain its efficient muon triggering and reconstruction performance. Resistive Plate Chambers (RPC) are dedicated detectors for muon triggering due to their excellent timing resolution. [...]
2024 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1060 (2024) 169075
In : 16th Workshop on Resistive Plate Chambers and Related Detectors (RPC 2022), CERN, Geneva, Switzerland, 26-30 Sep 2022, pp.169075
6.
Aging studies for the CMS improved Resistive Plate Chambers / CMS Muon Collaboration
For the High Luminosity (HL-LHC) upgrade an upgrade of the CMS detector is foreseen. One of the main projects is the development of the improved Resistive Plate Chamber (iRPC) detectors that will be installed in the forward region of CMS. [...]
2023 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1055 (2023) 168451
In : 16th Workshop on Resistive Plate Chambers and Related Detectors (RPC 2022), CERN, Geneva, Switzerland, 26-30 Sep 2022, pp.168451
7.
Evidence for the Higgs boson decay to a $Z$ boson and a photon at the LHC / ATLAS Collaboration
The first evidence for the Higgs boson decay to a $Z$ boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton-proton collision data sets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. [...]
arXiv:2309.03501; CERN-EP-2023-157; CMS-HIG-23-002.- Geneva : CERN, 2024-01-11 - 32 p. - Published in : Phys. Rev. Lett. 132 (2024) 021803 Fulltext: 2309.03501 - PDF; fb04f556ba10912b08405b9ca563b99a - PDF; Fulltext from Publisher: PDF; External links: Physics Synopsis; Fermilab Library Server
8.
Measurement of the inclusive semileptonic $B$ meson branching fraction in 62.8 fb$^{-1}$ of Belle II data / Belle-II Collaboration
We report a measurement of the branching fraction of inclusive semileptonic $B$ meson decays $B\to X_c\ell\nu\ell$ in $\Upsilon(4S)\to B\bar B$~data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy $e^+e^-$ collider and corresponding to 62.8 fb$^{-1}$ of integrated luminosity. [...]
arXiv:2111.09405 ; BELLE2-CONF-PH-2021-012.
- 17.
Fulltext
9.
Latest results of Longevity studies on the present CMS RPC system for HL-LHC phase / CMS Muon Collaboration
The present Compact Muon Solenoid Resistive Plate Chambers system has been worked efficiently during Run I and Run II of data taking period (Shah et al., 2020) [1]. In the coming years of operation with the High Luminosity LHC (HL-LHC), the expected rate and integrated charge are expected to be about 600 Hz/cm2 and 840 mC/cm2, respectively (including a safety factor of three). [...]
2023 - Published in : Nucl. Instrum. Methods Phys. Res., A 1055 (2023) 168452
In : 16th Workshop on Resistive Plate Chambers and Related Detectors (RPC 2022), CERN, Geneva, Switzerland, 26-30 Sep 2022, pp.168452
10.
Machine Learning based tool for CMS RPC currents quality monitoring / Shumka, E. (Sofiya U.) ; Samalan, A. (Gent U.) ; Tytgat, M. (Gent U.) ; Sawy, M. El (Brussels U.) ; Alves, G.A. (Rio de Janeiro, CBPF) ; Marujo, F. (Rio de Janeiro, CBPF) ; Coelho, E.A. (Rio de Janeiro, CBPF) ; Da Costa, E.M. (Rio de Janeiro State U.) ; Nogima, H. (Rio de Janeiro State U.) ; Santoro, A. (Rio de Janeiro State U.) et al. /CMS Muon Group
The muon system of the CERN Compact Muon Solenoid (CMS) experiment includes more than a thousand Resistive Plate Chambers (RPC). They are gaseous detectors operated in the hostile environment of the CMS underground cavern on the Large Hadron Collider where pp luminosities of up to $2\times 10^{34}$$\text{cm}^{-2}\text{s}^{-1}$ are routinely achieved. [...]
arXiv:2302.02764.- 2023-06-15 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1054 (2023) 168449 Fulltext: 2302.02764 - PDF; Publication - PDF;
In : 16th Workshop on Resistive Plate Chambers and Related Detectors (RPC 2022), CERN, Geneva, Switzerland, 26-30 Sep 2022, pp.168449

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