Status of the Triple-GEM project for the upgrade of the CMS Muon System

D. Abbaneo, M. Abbrescia, M. Abi Akl, C. Armaingaud, P. Aspell, Y. Assran, S. Bally, Y. Ban, P. Barria, L. Benussi, V. Bhopatkar, S. Bianco, J. Bos, O. Bouhali, J. Cai, C. Calabria, A. Castaneda, S. Cauwenbergh, A. Celik, J. ChristiansenS. Colafranceschi, A. Colaleo, A. Conde Garcia, G. De Lentdecker, R. De Oliveira, G. De Robertis, S. Dildick, S. Ferry, W. Flanagan, J. Gilmore, A. Gutierrez, K. Hoepfner, M. Hohlmann, T. Kamon, P. E. Karchin, V. Khotilovich, S. Krutelyov, F. Loddo, T. Maerschalk, G. Magazzu, M. Maggi, Y. Maghrbi, A. Marchioro, A. Marinov, J. A. Merlin, S. Nuzzo, E. Oliveri, B. Philipps, D. Piccolo, H. Postema, A. Radi, R. Radogna, G. Raffone, A. Ranieri, A. Rodrigues, L. Ropelewski, A. Safonov, A. Sakharov, S. Salva, G. Saviano, A. Sharma, A. Tatarinov, H. Teng, N. Turini, J. Twigger, M. Tytgat*, M. Van Stenis, E. Verhagen, Y. Yang, N. Zaganidis, F. Zenoni

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The CMS GEM collaboration is performing a feasibility study to install triple-GEM detectors in the forward region of the muon system (1.6 < |η| < 2.4) of the CMS detector at the LHC. Such micro-pattern gas detectors are able to cope with the extreme particle rates that are expected in that region during the High Luminosity phase of the LHC. With their spatial resolution of order 100 micron GEMs would not only provide additional benefits in the CMS muon High Level Trigger, but also in the muon identification and track reconstruction, effectively combining tracking and triggering capabilities in one single device. The present status of the full project will be reviewed, highlighting all importants steps and achievements since the start of the R&amp;D in 2009. Several small and full-size prototypes were constructed with different geometries and techniques. The baseline design of the triple-GEM detector for CMS will be described, along with the results from extensive test measurements of all prototypes both in the lab and in test beams at the CERN SPS. The proposed on- and off-detector electronics for the final system will be presented.

Original languageEnglish
Article numberC12031
JournalJournal of Instrumentation
Issue number12
Publication statusPublished - Dec 2013


  • Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc)
  • Muon spectrometers

ASJC Scopus subject areas

  • Instrumentation
  • Mathematical Physics


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