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Studies on the upgrade of the muon system in the forward region of the CMS experiment at LHC with GEMs

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Abstract
The LHC data-taking will resume in 2015 with energy of 13-14 TeV and luminosity of 2 divided by 5 x 10(34) cm(-2) s(-1). At those energies, a considerable fraction of the particles produced propagate in the high pseudo-rapidity regions. The proposal for the upgrade of the CMS muon forward system involves Gas Electron Multiplier (GEM) chambers to be installed during the second LHC Long Shutdown (LS2) covering the pseudorapidity range 1 : 5 < vertical bar h vertical bar < 2.2. This detector is able to handle the extreme particle rates expected in this region when the LHC will be running at higher luminosity. The GEM is an excellent choice, as its high spatial resolution (order of 100 m m) allows to combine tracking and triggering capabilities, which will improve the CMS muon High Level Trigger, the muon identification and the track reconstruction. Intense R&D has been going on since 2009 and it has lead to the development of several GEM prototypes and associated detector electronics. These GEM prototypes have been subjected to extensive tests in the laboratory and in test beams at the CERN Super Proton Synchrotron (SPS). This contribution will review the status of the CMS upgrade project with GEMs, discussing also the trigger performance.
Keywords
etc), Muon spectrometers, InGrid, MICROMEGAS, MICROPIC, MHSP, RETHGEM, THGEM, GEM, Micropattern gaseous detectors (MSGC

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Chicago
Abbaneo, D, M Abbrescia, MA Akl, C Armaingaud, P Aspell, Y Assran, S Bally, et al. 2014. “Studies on the Upgrade of the Muon System in the Forward Region of the CMS Experiment at LHC with GEMs.” Journal of Instrumentation 9.
APA
Abbaneo, D., Abbrescia, M., Akl, M., Armaingaud, C., Aspell, P., Assran, Y., Bally, S., et al. (2014). Studies on the upgrade of the muon system in the forward region of the CMS experiment at LHC with GEMs. JOURNAL OF INSTRUMENTATION, 9. Presented at the 13th Topical seminar on Innovative Particle and Radiation Detectors.
Vancouver
1.
Abbaneo D, Abbrescia M, Akl M, Armaingaud C, Aspell P, Assran Y, et al. Studies on the upgrade of the muon system in the forward region of the CMS experiment at LHC with GEMs. JOURNAL OF INSTRUMENTATION. 2014;9.
MLA
Abbaneo, D, M Abbrescia, MA Akl, et al. “Studies on the Upgrade of the Muon System in the Forward Region of the CMS Experiment at LHC with GEMs.” JOURNAL OF INSTRUMENTATION 9 (2014): n. pag. Print.
@article{5333529,
  abstract     = {The LHC data-taking will resume in 2015 with energy of 13-14 TeV and luminosity of 2 divided by 5 x 10(34) cm(-2) s(-1). At those energies, a considerable fraction of the particles produced propagate in the high pseudo-rapidity regions. The proposal for the upgrade of the CMS muon forward system involves Gas Electron Multiplier (GEM) chambers to be installed during the second LHC Long Shutdown (LS2) covering the pseudorapidity range 1 : 5 {\textlangle} vertical bar h vertical bar {\textlangle} 2.2. This detector is able to handle the extreme particle rates expected in this region when the LHC will be running at higher luminosity. The GEM is an excellent choice, as its high spatial resolution (order of 100 m m) allows to combine tracking and triggering capabilities, which will improve the CMS muon High Level Trigger, the muon identification and the track reconstruction. Intense R\&D has been going on since 2009 and it has lead to the development of several GEM prototypes and associated detector electronics. These GEM prototypes have been subjected to extensive tests in the laboratory and in test beams at the CERN Super Proton Synchrotron (SPS). This contribution will review the status of the CMS upgrade project with GEMs, discussing also the trigger performance.},
  articleno    = {C01053},
  author       = {Abbaneo, D and Abbrescia, M and Akl, MA and Armaingaud, C and Aspell, P and Assran, Y and Bally, S and Ban, Y and Banerjee, S and Barria, P and Benussi, L and Bhopatkar, V and Bianco, S and Bos, J and Bouhali, O and Cai, J and Calabria, C and Castaneda, A and Cauwenbergh, Simon and Celik, A and Christiansen, J and Colafranceschi, S and Colaleo, A and Garcia, AC and De Lentdecker, G and De Oliveira, R and de Robertis, G and Dildick, Sven and Ferry, S and Flanagan, W and Gilmore, J and Gutierrez, A and Hoepfner, K and Hohlmann, M and Kamon, T and Karchin, PE and Khotilovich, V and Krutelyov, S and Loddo, F and Maerschalk, T and Magazzu, G and Maggi, M and Maghrbi, Y and Marchioro, A and Marinov, Andrey and Mazumdar, N and Merlin, JA and Mukhopadhyay, S and Nuzzo, S and Oliveri, E and Philipps, B and Piccolo, D and Postema, H and Radi, A and Radogna, R and Raffone, G and Ranieri, A and Rodrigues, A and Ropelewski, L and Safonov, A and Sakharov, A and Salva, Sinem and Saviano, G and Sharma, A and Tatarinov, A and Teng, H and Turini, N and Twigger, J and Tytgat, Michael and van Stenis, M and Verhagen, E and Yang, Y and Zaganidis, Nikolaos and Zenoni, F},
  issn         = {1748-0221},
  journal      = {JOURNAL OF INSTRUMENTATION},
  language     = {eng},
  location     = {Siena, Italy},
  pages        = {10},
  title        = {Studies on the upgrade of the muon system in the forward region of the CMS experiment at LHC with GEMs},
  url          = {http://dx.doi.org/10.1088/1748-0221/9/01/C01053},
  volume       = {9},
  year         = {2014},
}

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