Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC

D. Abbaneo; M. Abbas; M. Abbrescia; M. Abi Akl; O. Aboamer; D. Acosta; A. Ahmad; W. Ahmed; A. Aleksandrov; P. Altieri; C. Asawatangtrakuldee; P. Aspell; Y. Assran; I. Awan; S. Bally; Y. Ban; S. Banerjee; V. Barashko; P. Barria; G. Bencze; N. Beni; L. Benussi; V. Bhopatkar; S. Bianco; J. Bos; O. Bouhali; A. Braghieri; S. Braibant; S. Buontempo; C. Calabria; M. Caponero; C. Caputo; F. Cassese; A. Castaneda; S. Cauwenbergh; F. R. Cavallo; A. Celik; M. Choi; S. Choi; J. Christiansen; A. Cimmino; S. Colafranceschi; A. Colaleo; A. Conde Garcia; S. Czellar; M. M. Dabrowski; G. De Lentdecker; R. De Oliveira; G. De Robertis; S. Dildick; B. Dorney; G. Endroczi; F. Errico; A. Fenyvesi; S. Ferry; I. Furic; P. Giacomelli; J. Gilmore; V. Golovtsov; L. Guiducci; F. Guilloux; A. Gutierrez; R. M. Hadjiiska; J. Hauser; K. Hoepfner; M. Hohlmann; H. Hoorani; P. Iaydjiev; Y. G. Jeng; T. Kamon; P. Karchin; A. Korytov; S. Krutelyov; A. Kumar; H. Kim; J. Lee; T. Lenzi; L. Litov; F. Loddo; A. Madorsky; T. Maerschalk; M. Maggi; A. Magnani; P. K. Mal; K. Mandal; A. Marchioro; A. Marinov; N. Majumdar; J. A. Merlin; G. Mitselmakher; A. K. Mohanty; A. Mohapatra; J. Molnar; S. Muhammad; S. Mukhopadhyay; M. Naimuddin; S. Nuzzo; E. Oliveri; L. M. Pant; P. Paolucci; I. Park; G. Passeggio; B. Pavlov; B. Philipps; D. Piccolo; H. Postema; A. Puig Baranac; A. Radi; R. Radogna; G. Raffone; A. Ranieri; G. Rashevski; C. Riccardi; M. Rodozov; A. Rodrigues; L. Ropelewski; S. Roychowdhury; G. Ryu; M. S. Ryu; A. Safonov; S. Salva; G. Saviano; A. Sharma; A. Sharma; R. Sharma; A. H. Shah; M. Shopova; J. Sturdy; G. Sultanov; S. K. Swain; Z. Szillasi; J. Talvitie; A. Tatarinov; T. Tuuva; M. Tytgat; I. Vai; M. Van Stenis; R. Venditti; E. Verhagen; P. Verwilligen; P. Vitulo; S. Volkov; A. Vorobyev; D. Wang; M. Wang; U. Yang; Y. Yang; R. Yonamine; N. Zaganidis; F. Zenoni; A. Zhang

doi:10.1109/NSSMIC.2015.7581797

Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC

D. Abbaneo, M. Abbas, M. Abbrescia, M. Abi Akl, O. Aboamer, D. Acosta, A. Ahmad, W. Ahmed, A. Aleksandrov, P. Altieri, C. Asawatangtrakuldee, P. Aspell, Y. Assran, I. Awan, S. Bally, Y. Ban, S. Banerjee, V. Barashko, P. Barria, G. BenczeN. Beni, L. Benussi, V. Bhopatkar, S. Bianco, J. Bos, O. Bouhali, A. Braghieri, S. Braibant, S. Buontempo, C. Calabria, M. Caponero, C. Caputo, F. Cassese, A. Castaneda, S. Cauwenbergh, F. R. Cavallo, A. Celik, M. Choi, S. Choi, J. Christiansen, A. Cimmino, S. Colafranceschi, A. Colaleo, A. Conde Garcia, S. Czellar, M. M. Dabrowski, G. De Lentdecker, R. De Oliveira, G. De Robertis, S. Dildick, B. Dorney, G. Endroczi, F. Errico, A. Fenyvesi, S. Ferry, I. Furic, P. Giacomelli, J. Gilmore, V. Golovtsov, L. Guiducci, F. Guilloux, A. Gutierrez, R. M. Hadjiiska, J. Hauser, K. Hoepfner, M. Hohlmann, H. Hoorani, P. Iaydjiev, Y. G. Jeng, T. Kamon, P. Karchin, A. Korytov, S. Krutelyov, A. Kumar, H. Kim, J. Lee, T. Lenzi, L. Litov, F. Loddo, A. Madorsky, T. Maerschalk, M. Maggi, A. Magnani, P. K. Mal, K. Mandal, A. Marchioro, A. Marinov, N. Majumdar, J. A. Merlin, G. Mitselmakher, A. K. Mohanty, A. Mohapatra, J. Molnar, S. Muhammad, S. Mukhopadhyay, M. Naimuddin, S. Nuzzo, E. Oliveri, L. M. Pant, P. Paolucci, I. Park, G. Passeggio, B. Pavlov, B. Philipps, D. Piccolo, H. Postema, A. Puig Baranac, A. Radi, R. Radogna, G. Raffone, A. Ranieri, G. Rashevski, C. Riccardi, M. Rodozov, A. Rodrigues, L. Ropelewski, S. Roychowdhury, G. Ryu, M. S. Ryu, A. Safonov, S. Salva, G. Saviano, A. Sharma, A. Sharma, R. Sharma, A. H. Shah, M. Shopova, J. Sturdy, G. Sultanov, S. K. Swain, Z. Szillasi, J. Talvitie, A. Tatarinov, T. Tuuva, M. Tytgat, I. Vai, M. Van Stenis, R. Venditti, E. Verhagen, P. Verwilligen, P. Vitulo, S. Volkov, A. Vorobyev, D. Wang, M. Wang, U. Yang, Y. Yang, R. Yonamine, N. Zaganidis, F. Zenoni, A. Zhang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

The Compact Muon Solenoid (CMS) detector is one of the two general-purpose detectors at the CERN LHC. LHC will provide exceptional high instantaneous and integrated luminosity after second long shutdown. The forward region η ≥ 1:5 of CMS detector will face extremely high particle rates in tens of kHz/cm² and hence it will affect the momentum resolution, efficiency and longevity of the muon detectors. Here, η is pseudorapidity defined as η = -ln(tan(θ/2)), where θ is the polar angle measured from z-axis. To overcome these issues the CMSGEM collaboration has proposed to install new large size rate capable Triple Gas Electron Multiplier (GEM) detectors in the forward region of CMS muon system. The first set of Triple GEM detectors will be installed in the GE1/1 region (1:6 < η < 2.2) of the muon endcap during the long shutdown 2 (LS2) of the LHC. Towards this goal, full size CMS Triple GEM detectors have been fabricated and tested at the CERN SPS, H2 and H4 test beam facility. The GEM detectors were operated with two gas mixtures: Ar/CO₂ (70/30) and Ar/CO₂/CF₄ (45/15/40). In 2014, good quality data was collected during test beam campaigns. In this paper, the performance of the detectors is summarized based on their tracking efficiency and time resolution.

Original language	English
Title of host publication	2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781467398626
DOIs	https://doi.org/10.1109/NSSMIC.2015.7581797
Publication status	Published - 2016 Oct 3
Event	2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015 - San Diego, United States Duration: 2015 Oct 31 → 2015 Nov 7

Publication series

Name	2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015

Other

Other	2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015
Country/Territory	United States
City	San Diego
Period	15/10/31 → 15/11/7

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

ASJC Scopus subject areas

Nuclear and High Energy Physics
Radiology Nuclear Medicine and imaging
Instrumentation

Access to Document

10.1109/NSSMIC.2015.7581797

Cite this

Abbaneo, D., Abbas, M., Abbrescia, M., Akl, M. A., Aboamer, O., Acosta, D., Ahmad, A., Ahmed, W., Aleksandrov, A., Altieri, P., Asawatangtrakuldee, C., Aspell, P., Assran, Y., Awan, I., Bally, S., Ban, Y., Banerjee, S., Barashko, V., Barria, P., ... Zhang, A. (2016). Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC. In 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015 Article 7581797 (2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2015.7581797

Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC. / Abbaneo, D.; Abbas, M.; Abbrescia, M. et al.
2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015. Institute of Electrical and Electronics Engineers Inc., 2016. 7581797 (2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abbaneo, D, Abbas, M, Abbrescia, M, Akl, MA, Aboamer, O, Acosta, D, Ahmad, A, Ahmed, W, Aleksandrov, A, Altieri, P, Asawatangtrakuldee, C, Aspell, P, Assran, Y, Awan, I, Bally, S, Ban, Y, Banerjee, S, Barashko, V, Barria, P, Bencze, G, Beni, N, Benussi, L, Bhopatkar, V, Bianco, S, Bos, J, Bouhali, O, Braghieri, A, Braibant, S, Buontempo, S, Calabria, C, Caponero, M, Caputo, C, Cassese, F, Castaneda, A, Cauwenbergh, S, Cavallo, FR, Celik, A, Choi, M, Choi, S, Christiansen, J, Cimmino, A, Colafranceschi, S, Colaleo, A, Garcia, AC, Czellar, S, Dabrowski, MM, De Lentdecker, G, De Oliveira, R, De Robertis, G, Dildick, S, Dorney, B, Endroczi, G, Errico, F, Fenyvesi, A, Ferry, S, Furic, I, Giacomelli, P, Gilmore, J, Golovtsov, V, Guiducci, L, Guilloux, F, Gutierrez, A, Hadjiiska, RM, Hauser, J, Hoepfner, K, Hohlmann, M, Hoorani, H, Iaydjiev, P, Jeng, YG, Kamon, T, Karchin, P, Korytov, A, Krutelyov, S, Kumar, A, Kim, H, Lee, J, Lenzi, T, Litov, L, Loddo, F, Madorsky, A, Maerschalk, T, Maggi, M, Magnani, A, Mal, PK, Mandal, K, Marchioro, A, Marinov, A, Majumdar, N, Merlin, JA, Mitselmakher, G, Mohanty, AK, Mohapatra, A, Molnar, J, Muhammad, S, Mukhopadhyay, S, Naimuddin, M, Nuzzo, S, Oliveri, E, Pant, LM, Paolucci, P, Park, I, Passeggio, G, Pavlov, B, Philipps, B, Piccolo, D, Postema, H, Baranac, AP, Radi, A, Radogna, R, Raffone, G, Ranieri, A, Rashevski, G, Riccardi, C, Rodozov, M, Rodrigues, A, Ropelewski, L, Roychowdhury, S, Ryu, G, Ryu, MS, Safonov, A, Salva, S, Saviano, G, Sharma, A, Sharma, A, Sharma, R, Shah, AH, Shopova, M, Sturdy, J, Sultanov, G, Swain, SK, Szillasi, Z, Talvitie, J, Tatarinov, A, Tuuva, T, Tytgat, M, Vai, I, Van Stenis, M, Venditti, R, Verhagen, E, Verwilligen, P, Vitulo, P, Volkov, S, Vorobyev, A, Wang, D, Wang, M, Yang, U, Yang, Y, Yonamine, R, Zaganidis, N, Zenoni, F & Zhang, A 2016, Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC. in 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015., 7581797, 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015, Institute of Electrical and Electronics Engineers Inc., 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015, San Diego, United States, 15/10/31. https://doi.org/10.1109/NSSMIC.2015.7581797

Abbaneo D, Abbas M, Abbrescia M, Akl MA, Aboamer O, Acosta D et al. Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC. In 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015. Institute of Electrical and Electronics Engineers Inc. 2016. 7581797. (2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015). doi: 10.1109/NSSMIC.2015.7581797

Abbaneo, D. ; Abbas, M. ; Abbrescia, M. et al. / Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC. 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015. Institute of Electrical and Electronics Engineers Inc., 2016. (2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015).

@inproceedings{a2315067b6d34e95ac1c1cdf5e81a345,

title = "Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC",

abstract = "The Compact Muon Solenoid (CMS) detector is one of the two general-purpose detectors at the CERN LHC. LHC will provide exceptional high instantaneous and integrated luminosity after second long shutdown. The forward region η ≥ 1:5 of CMS detector will face extremely high particle rates in tens of kHz/cm2 and hence it will affect the momentum resolution, efficiency and longevity of the muon detectors. Here, η is pseudorapidity defined as η = -ln(tan(θ/2)), where θ is the polar angle measured from z-axis. To overcome these issues the CMSGEM collaboration has proposed to install new large size rate capable Triple Gas Electron Multiplier (GEM) detectors in the forward region of CMS muon system. The first set of Triple GEM detectors will be installed in the GE1/1 region (1:6 < η < 2.2) of the muon endcap during the long shutdown 2 (LS2) of the LHC. Towards this goal, full size CMS Triple GEM detectors have been fabricated and tested at the CERN SPS, H2 and H4 test beam facility. The GEM detectors were operated with two gas mixtures: Ar/CO2 (70/30) and Ar/CO2/CF4 (45/15/40). In 2014, good quality data was collected during test beam campaigns. In this paper, the performance of the detectors is summarized based on their tracking efficiency and time resolution.",

author = "D. Abbaneo and M. Abbas and M. Abbrescia and Akl, {M. Abi} and O. Aboamer and D. Acosta and A. Ahmad and W. Ahmed and A. Aleksandrov and P. Altieri and C. Asawatangtrakuldee and P. Aspell and Y. Assran and I. Awan and S. Bally and Y. Ban and S. Banerjee and V. Barashko and P. Barria and G. Bencze and N. Beni and L. Benussi and V. Bhopatkar and S. Bianco and J. Bos and O. Bouhali and A. Braghieri and S. Braibant and S. Buontempo and C. Calabria and M. Caponero and C. Caputo and F. Cassese and A. Castaneda and S. Cauwenbergh and Cavallo, {F. R.} and A. Celik and M. Choi and S. Choi and J. Christiansen and A. Cimmino and S. Colafranceschi and A. Colaleo and Garcia, {A. Conde} and S. Czellar and Dabrowski, {M. M.} and {De Lentdecker}, G. and {De Oliveira}, R. and {De Robertis}, G. and S. Dildick and B. Dorney and G. Endroczi and F. Errico and A. Fenyvesi and S. Ferry and I. Furic and P. Giacomelli and J. Gilmore and V. Golovtsov and L. Guiducci and F. Guilloux and A. Gutierrez and Hadjiiska, {R. M.} and J. Hauser and K. Hoepfner and M. Hohlmann and H. Hoorani and P. Iaydjiev and Jeng, {Y. G.} and T. Kamon and P. Karchin and A. Korytov and S. Krutelyov and A. Kumar and H. Kim and J. Lee and T. Lenzi and L. Litov and F. Loddo and A. Madorsky and T. Maerschalk and M. Maggi and A. Magnani and Mal, {P. K.} and K. Mandal and A. Marchioro and A. Marinov and N. Majumdar and Merlin, {J. A.} and G. Mitselmakher and Mohanty, {A. K.} and A. Mohapatra and J. Molnar and S. Muhammad and S. Mukhopadhyay and M. Naimuddin and S. Nuzzo and E. Oliveri and Pant, {L. M.} and P. Paolucci and I. Park and G. Passeggio and B. Pavlov and B. Philipps and D. Piccolo and H. Postema and Baranac, {A. Puig} and A. Radi and R. Radogna and G. Raffone and A. Ranieri and G. Rashevski and C. Riccardi and M. Rodozov and A. Rodrigues and L. Ropelewski and S. Roychowdhury and G. Ryu and Ryu, {M. S.} and A. Safonov and S. Salva and G. Saviano and A. Sharma and A. Sharma and R. Sharma and Shah, {A. H.} and M. Shopova and J. Sturdy and G. Sultanov and Swain, {S. K.} and Z. Szillasi and J. Talvitie and A. Tatarinov and T. Tuuva and M. Tytgat and I. Vai and {Van Stenis}, M. and R. Venditti and E. Verhagen and P. Verwilligen and P. Vitulo and S. Volkov and A. Vorobyev and D. Wang and M. Wang and U. Yang and Y. Yang and R. Yonamine and N. Zaganidis and F. Zenoni and A. Zhang",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015 ; Conference date: 31-10-2015 Through 07-11-2015",

year = "2016",

month = oct,

day = "3",

doi = "10.1109/NSSMIC.2015.7581797",

language = "English",

series = "2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015",

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TY - GEN

T1 - Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC

AU - Abbaneo, D.

AU - Abbas, M.

AU - Abbrescia, M.

AU - Akl, M. Abi

AU - Aboamer, O.

AU - Acosta, D.

AU - Ahmad, A.

AU - Ahmed, W.

AU - Aleksandrov, A.

AU - Altieri, P.

AU - Asawatangtrakuldee, C.

AU - Aspell, P.

AU - Assran, Y.

AU - Awan, I.

AU - Bally, S.

AU - Ban, Y.

AU - Banerjee, S.

AU - Barashko, V.

AU - Barria, P.

AU - Bencze, G.

AU - Beni, N.

AU - Benussi, L.

AU - Bhopatkar, V.

AU - Bianco, S.

AU - Bos, J.

AU - Bouhali, O.

AU - Braghieri, A.

AU - Braibant, S.

AU - Buontempo, S.

AU - Calabria, C.

AU - Caponero, M.

AU - Caputo, C.

AU - Cassese, F.

AU - Castaneda, A.

AU - Cauwenbergh, S.

AU - Cavallo, F. R.

AU - Celik, A.

AU - Choi, M.

AU - Choi, S.

AU - Christiansen, J.

AU - Cimmino, A.

AU - Colafranceschi, S.

AU - Colaleo, A.

AU - Garcia, A. Conde

AU - Czellar, S.

AU - Dabrowski, M. M.

AU - De Lentdecker, G.

AU - De Oliveira, R.

AU - De Robertis, G.

AU - Dildick, S.

AU - Dorney, B.

AU - Endroczi, G.

AU - Errico, F.

AU - Fenyvesi, A.

AU - Ferry, S.

AU - Furic, I.

AU - Giacomelli, P.

AU - Gilmore, J.

AU - Golovtsov, V.

AU - Guiducci, L.

AU - Guilloux, F.

AU - Gutierrez, A.

AU - Hadjiiska, R. M.

AU - Hauser, J.

AU - Hoepfner, K.

AU - Hohlmann, M.

AU - Hoorani, H.

AU - Iaydjiev, P.

AU - Jeng, Y. G.

AU - Kamon, T.

AU - Karchin, P.

AU - Korytov, A.

AU - Krutelyov, S.

AU - Kumar, A.

AU - Kim, H.

AU - Lee, J.

AU - Lenzi, T.

AU - Litov, L.

AU - Loddo, F.

AU - Madorsky, A.

AU - Maerschalk, T.

AU - Maggi, M.

AU - Magnani, A.

AU - Mal, P. K.

AU - Mandal, K.

AU - Marchioro, A.

AU - Marinov, A.

AU - Majumdar, N.

AU - Merlin, J. A.

AU - Mitselmakher, G.

AU - Mohanty, A. K.

AU - Mohapatra, A.

AU - Molnar, J.

AU - Muhammad, S.

AU - Mukhopadhyay, S.

AU - Naimuddin, M.

AU - Nuzzo, S.

AU - Oliveri, E.

AU - Pant, L. M.

AU - Paolucci, P.

AU - Park, I.

AU - Passeggio, G.

AU - Pavlov, B.

AU - Philipps, B.

AU - Piccolo, D.

AU - Postema, H.

AU - Baranac, A. Puig

AU - Radi, A.

AU - Radogna, R.

AU - Raffone, G.

AU - Ranieri, A.

AU - Rashevski, G.

AU - Riccardi, C.

AU - Rodozov, M.

AU - Rodrigues, A.

AU - Ropelewski, L.

AU - Roychowdhury, S.

AU - Ryu, G.

AU - Ryu, M. S.

AU - Safonov, A.

AU - Salva, S.

AU - Saviano, G.

AU - Sharma, A.

AU - Sharma, R.

AU - Shah, A. H.

AU - Shopova, M.

AU - Sturdy, J.

AU - Sultanov, G.

AU - Swain, S. K.

AU - Szillasi, Z.

AU - Talvitie, J.

AU - Tatarinov, A.

AU - Tuuva, T.

AU - Tytgat, M.

AU - Vai, I.

AU - Van Stenis, M.

AU - Venditti, R.

AU - Verhagen, E.

AU - Verwilligen, P.

AU - Vitulo, P.

AU - Volkov, S.

AU - Vorobyev, A.

AU - Wang, D.

AU - Wang, M.

AU - Yang, U.

AU - Yang, Y.

AU - Yonamine, R.

AU - Zaganidis, N.

AU - Zenoni, F.

AU - Zhang, A.

PY - 2016/10/3

Y1 - 2016/10/3

N2 - The Compact Muon Solenoid (CMS) detector is one of the two general-purpose detectors at the CERN LHC. LHC will provide exceptional high instantaneous and integrated luminosity after second long shutdown. The forward region η ≥ 1:5 of CMS detector will face extremely high particle rates in tens of kHz/cm2 and hence it will affect the momentum resolution, efficiency and longevity of the muon detectors. Here, η is pseudorapidity defined as η = -ln(tan(θ/2)), where θ is the polar angle measured from z-axis. To overcome these issues the CMSGEM collaboration has proposed to install new large size rate capable Triple Gas Electron Multiplier (GEM) detectors in the forward region of CMS muon system. The first set of Triple GEM detectors will be installed in the GE1/1 region (1:6 < η < 2.2) of the muon endcap during the long shutdown 2 (LS2) of the LHC. Towards this goal, full size CMS Triple GEM detectors have been fabricated and tested at the CERN SPS, H2 and H4 test beam facility. The GEM detectors were operated with two gas mixtures: Ar/CO2 (70/30) and Ar/CO2/CF4 (45/15/40). In 2014, good quality data was collected during test beam campaigns. In this paper, the performance of the detectors is summarized based on their tracking efficiency and time resolution.

AB - The Compact Muon Solenoid (CMS) detector is one of the two general-purpose detectors at the CERN LHC. LHC will provide exceptional high instantaneous and integrated luminosity after second long shutdown. The forward region η ≥ 1:5 of CMS detector will face extremely high particle rates in tens of kHz/cm2 and hence it will affect the momentum resolution, efficiency and longevity of the muon detectors. Here, η is pseudorapidity defined as η = -ln(tan(θ/2)), where θ is the polar angle measured from z-axis. To overcome these issues the CMSGEM collaboration has proposed to install new large size rate capable Triple Gas Electron Multiplier (GEM) detectors in the forward region of CMS muon system. The first set of Triple GEM detectors will be installed in the GE1/1 region (1:6 < η < 2.2) of the muon endcap during the long shutdown 2 (LS2) of the LHC. Towards this goal, full size CMS Triple GEM detectors have been fabricated and tested at the CERN SPS, H2 and H4 test beam facility. The GEM detectors were operated with two gas mixtures: Ar/CO2 (70/30) and Ar/CO2/CF4 (45/15/40). In 2014, good quality data was collected during test beam campaigns. In this paper, the performance of the detectors is summarized based on their tracking efficiency and time resolution.

UR - http://www.scopus.com/inward/record.url?scp=84994148967&partnerID=8YFLogxK

U2 - 10.1109/NSSMIC.2015.7581797

DO - 10.1109/NSSMIC.2015.7581797

M3 - Conference contribution

AN - SCOPUS:84994148967

T3 - 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015

BT - 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015

Y2 - 31 October 2015 through 7 November 2015

ER -

Charged particle detection performance of Gas Electron Multiplier (GEM) detectors for the upgrade of CMS endcap muon system at the CERN LHC

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