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CERN Document Server 637 records found  1 - 10nextend  jump to record: Search took 0.68 seconds. 
1.
CMS RPC performance and operation in LHC Run 3 / CMS Collaboration
The CMS experiment has collected more than 180 fb$^{-1}$ of proton-proton collision data at a 13.6 TeV center-of-mass energy in Run 3 data taking (2022, 2023 and 2024). The CMS RPC system faces the challenge of the LHC delivered instantaneous luminosity of up to 2 x 10$^{34}$ cm$^{-2}$s$^{-1}$, providing redundant information for robust muon triggering, reconstruction and identification. [...]
CMS-CR-2024-336.- Geneva : CERN, 2024 - 8 p. Fulltext: PDF;
In : 17th International Conference on Resistive Plate Chambers and Related Detectors, Santiago de Compostela, 09 - 13 Sep 2024
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2.
A Novel Method for Transverse Beam-Coupling Impedance Measurements in Particle Accelerator Devices Using the Bead-Pull Method / Antuono, Chiara (U. Rome La Sapienza (main) ; CERN) ; Sito, Leonardo (CERN ; Naples U.) ; Calzone, Eleonora (U. Rome La Sapienza (main) ; CERN) ; el Dali, D (CERN) ; Migliorati, Mauro (CERN ; U. Rome La Sapienza (main)) ; Mostacci, Andrea (CERN ; U. Rome La Sapienza (main)) ; Fienga, Francesco (CERN ; Naples U.) ; Marrazzo, Vincenzo Romano (CERN ; Naples U.) ; Breglio, Giovanni (CERN ; Naples U.) ; Rumolo, G (CERN) et al.
In high-energy particle accelerators, circulating particle beams with high intensity interact electromagnetically with their surroundings (i.e., metallic vacuum chambers of various geometries). These electromagnetic interactions, which are typically described through the concept of beam-coupling impedance, can represent a serious issue in terms of stability of the particle beam and heating on the accelerator structures. [...]
2024 - 9 p. - Published in : IEEE Trans. Instrum. Meas. 73 (2024) 8005209 Fulltext: PDF;
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3.
Search for resonant pair production of Higgs bosons in the $ \mathrm{b}\overline{\mathrm{b}}\mathrm{b}\overline{\mathrm{b}} $ final state using large-area jets in proton-proton collisions at $ \sqrt{s}= $ 13 TeV / CMS Collaboration
A search is presented for the resonant production of a pair of standard model-like Higgs bosons using data from proton-proton collisions at a centre-of-mass energy of 13 TeV, collected by the CMS experiment at the CERN LHC in 2016-2018, corresponding to an integrated luminosity of 138 fb$ ^{-1} $. [...]
arXiv:2407.13872 ; CMS-B2G-20-004 ; CERN-EP-2024-030 ; CMS-B2G-20-004-003. - 2024 - 42.
Fermilab Library Server - Fulltext - Fulltext - Fulltext
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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
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5.
Characterization of Lab-on-Fiber-based dosimeters in ultra-high dose radiation fields / Vaiano, Patrizio (Sannio U.) ; Quero, Giuseppe (Sannio U.) ; Fienga, Francesco (Naples U. ; CERN) ; Di Meo, Valentina (INFN, Naples) ; Casolaro, Pierluigi (Bern U., LHEP) ; Campajola, Luigi (INFN, Naples) ; Breglio, Giovanni (Naples U. ; CERN) ; Crescitelli, Alessio (INFN, Naples) ; Esposito, Emanuela (INFN, Naples) ; Cutolo, Antonello (Naples U.) et al.
Next generation High Energy Physics (HEP) accelerators will require new devices and technologies capable of operating in extreme environments characterized by ultra-high radiation doses up to the MGy levels. To this aim, we report on an innovative Lab-On-Fiber (LOF) probe for the real-time dose monitoring. [...]
2023 - 9 p. - Published in : Opt. Laser Technol. 161 (2023) 109177 Fulltext: PDF;
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6.
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
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7.
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
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8.
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
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9.
Direct Measurement of Beam-Induced Heating on Accelerator Pipes With Fiber Optic Sensors: Numerical Analysis Validation / Fienga, Francesco (CERN ; U. Naples (main)) ; Romano Marrazzo, Vincenzo (CERN ; U. Naples (main)) ; Sito, Leonardo (CERN ; U. Naples (main)) ; Giordano, Francesco (CERN) ; Beni, Noemi (CERN ; U. Debrecen, Inst. Phys.) ; Szillasi, Zoltan (U. Debrecen, Inst. Phys. ; CERN) ; Irace, Andrea (U. Naples (main)) ; Zeuner, Wolfram (CERN) ; Salvant, Benoit (CERN) ; Buontempo, Salvatore (INFN, Naples ; CERN) et al.
In the field of accelerator physics, it is crucial to account for heating caused by the passage of high-intensity beams into accelerator components. This phenomenon is known as radio frequency (RF) beam-induced heating (BIH) and requires, other than an accurate design stage, to constantly monitor temperature-related parameters during the accelerator operations. [...]
2023 - 9 p. - Published in : IEEE Trans. Instrum. Meas. 72 (2023) 9508709
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10.
Method for the interrogation of FBG thermo-hygrometer through full analog circuit / Marrazzo, Vincenzo Romano (CERN ; Naples U.) ; Fienga, Francesco (CERN ; Naples U.) ; Zenga, Alfredo (CERN ; Naples U.) ; Riccio, Michele (Naples U.) ; Buontempo, Salvatore (CERN ; INFN, Italy) ; Irace, Andrea (Naples U.) ; Breglio, Giovanni (CERN ; Naples U.)
The proposed work has the aim to investigate a full analog electrical circuitry to convert the wavelength-encoded signal coming from a pair of Fiber Bragg Grating (FBG) sensors into a single monotonic electrical signal. The latter can be used either to be read from a PLC system (or directly by a switch) if a 4-20 mA signal is needed (e.g. [...]
2023 - 4 p. - Published in : Proc. SPIE 12643 (2023) 437-440
In : European Workshop on Optical Fibre Sensors (EWOFS 2023), Mons, Belgium, 23 - 26 May 2023, pp.437-440
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