Benchmarking LHC background particle simulation with the CMS triple-GEM detector. (16th December 2021)

• Record Type: Journal Article
• Authors: Abbas, M.; Abbrescia, M.; Abdalla, H.; Abdelalim, A.; AbuZeid, S.; Agapitos, A.; Ahmad, A.; Ahmed, A.; Ahmed, W.; Aimè, C.; Aruta, C.; Asghar, I.; Aspell, P.; Avila, C.; Azhgirey, I.; Babbar, J.; Ban, Y.; Band, R.; Bansal, S.; Benussi, L.; Bhatnagar, V.; Bianco, M.; Bianco, S.; Black, K.; Borgonovi, L.; Bouhali, O.; Bozzato, D.; Braghieri, A.; Braibant, S.; Butalla, S.; Calzaferri, S.; Caponero, M.; Cassese, F.; Castaneda, A.; Cavallo, N.; Chauhan, S.S.; Colaleo, A.; Conde Garcia, A.; Dalchenko, M.; De Iorio, A.; De Lentdecker, G.; Dell Olio, D.; De Robertis, G.; Dharmaratna, W.; Dildick, S.; Dorney, B.; Erbacher, R.; Fabozzi, F.; Fallavollita, F.; Ferraro, A.; Fiorina, D.; Fontanesi, E.; Franco, M.; Galloni, C.; Gancarcik, D.; Giacomelli, P.; Gigli, S.; Gilmore, J.; Gola, M.; Gruchala, M.; Gutierrez, A.; Hadjiiska, R.; Hakkarainen, T.; Hauser, J.; Hoepfner, K.; Hohlmann, M.; Hoorani, H.; Huang, T.; Iaydjiev, P.; Irshad, A.; Iorio, A.; Ivone, F.; Jang, W.; Jaramillo, J.; Jha, V.; Juodagalvis, A.; Juska, E.; Kailasapathy, B.; Kamon, T.; Kang, Y.; Karchin, P.; Kaur, A.; Kaur, H.; Keller, H.; Kim, H.; Kim, J.; Kim, S.; Ko, B.; Kumar, A.; Kumar, S.; Kumawat, H.; Kurochkin, I.; Lacalamita, N.; Lee, J.S.H.; Levin, A.; Li, Q.; Licciulli, F.; Lista, L.; Liyanage, K.; Loddo, F.; Luhach, M.; Maggi, M.; Maghrbi, Y.; Majumdar, N.; Malagalage, K.; Malhotra, S.; Mallows, S.; Martiradonna, S.; Mccoll, N.; McLean, C.; Merlin, J.; Misheva, M.; Mishra, D.; Mocellin, G.; Moureaux, L.; Muhammad, A.; Muhammad, S.; Mukhopadhyay, S.; Naimuddin, M.; Netrakanti, P.; Nuzzo, S.; Oliveira, R.; Pant, L.; Paolucci, P.; Park, I.C.; Passamonti, L.; Passeggio, G.; Peck, A.; Pellecchia, A.; Perera, N.; Petre, L.; Petrow, H.; Piccolo, D.; Pierluigi, D.; Raffone, G.; Rahmani, M.; Ramirez, F.; Ranieri, A.; Rashevski, G.; Regnery, B.; Ressegotti, M.; Riabchikova, A.; Riccardi, C.; Rodozov, M.; Romano, E.; Roskas, C.; Rossi, B.; Rout, P.; Roy, D.; Ruiz, J.D.; Russo, A.; Safonov, A.; Sahota, A.K.; Saltzberg, D.; Saviano, G.; Shah, A.; Sharma, A.; Sharma, R.; Sheokand, T.; Shopova, M.; Simone, F.M.; Singh, J.; Sonnadara, U.; Starling, E.; Stone, B.; Sturdy, J.; Sultanov, G.; Szillasi, Z.; Teague, D.; Teyssier, D.; Tuuva, T.; Tytgat, M.; Vai, I.; Vanegas, N.; Venditti, R.; Verwilligen, P.; Vetens, W.; Virdi, A.K.; Vitulo, P.; Wajid, A.; Wang, D.; Wang, K.; Watson, I.J.; Wickramage, N.; Wickramarathna, D.D.C.; Yang, S.; Yang, Y.; Yang, U.; Yongho, J.; Yoon, I.; You, Z.; Yu, I.; Zaleski, S.;
• Is Part Of: Journal of instrumentation. Volume 16:Number 12(2021)
• Publication Date: 2021-12-16
• Subjects: Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc) -- Interaction of radiation with matter -- Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc) -- Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc); Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/16/12/P12026
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: In 2018, a system of large-size triple-GEM demonstrator chambers was installed in the CMS experiment at CERN's Large Hadron Collider (LHC). The demonstrator's design mimicks that of the final detector, installed for Run-3. A successful Monte Carlo (MC) simulation of the collision-induced background hit rate in this system in proton-proton collisions at 13 TeV is presented. The MC predictions are compared to CMS measurements recorded at an instantaneous luminosity of 1.5 ×10 34 cm -2 s -1 . The simulation framework uses a combination of the FLUKA and GEANT4 packages. FLUKA simulates the radiation environment around the GE1/1 chambers. The particle flux by FLUKA covers energy spectra ranging from 10 -11 to 10 4 MeV for neutrons, 10 -3 to 10 4 MeV for γ's, 10 -2 to 10 4 MeV for e ±, and 10 -1 to 10 4 MeV for charged hadrons. GEANT4 provides an estimate of the detector response (sensitivity) based on an accurate description of the detector geometry, the material composition, and the interaction of particles with the detector layers. The detector hit rate, as obtained from the simulation using FLUKA and GEANT4, is estimated as a function of the perpendicular distance from the beam line and agrees with data within the assigned uncertainties in the range 13.7-14.5%. This simulation framework can be used to obtain a reliable estimate of the background rates expected at the High Luminosity LHC.