The International School for Advanced Studies (SISSA) was founded in 1978 and was the first institution in Italy to promote post-graduate courses leading to a Doctor Philosophiae (or PhD) degree. A centre of excellence among Italian and international universities, the school has around 65 teachers, 100 post docs and 245 PhD students, and is located in Trieste, in a campus of more than 10 hectares with wonderful views over the Gulf of Trieste.
SISSA hosts a very high-ranking, large and multidisciplinary scientific research output. The scientific papers produced by its researchers are published in high impact factor, well-known international journals, and in many cases in the world's most prestigious scientific journals such as Nature and Science. Over 900 students have so far started their careers in the field of mathematics, physics and neuroscience research at SISSA.
Upgrade of the CMS muon system with triple-GEM detectors
D. Abbaneo15, M. Abbas15, M. Abbrescia2, A.A. Abdelalim8, M. Abi Akl13, W. Ahmed8, W. Ahmed17, P. Altieri2, R. Aly8, A. Ashfaq17, P. Aspell15, Y. Assran7, I. Awan17, S. Bally15, Y. Ban3, S. Banerjee19, P. Barria5, L. Benussi14, V. Bhopatkar22, S. Bianco14, J. Bos15, O. Bouhali13, S. Braibant4, S. Buontempo24, J. Cai3, C. Calabria2, C. Caputo2, F. Cassese24, A. Castaneda13, S. Cauwenbergh16, F.R. Cavallo4, A. Celik9, M. Choi31, K. Choi31, S. Choi29, J. Christiansen15, A. Cimmino16, S. Colafranceschi15, A. Colaleo2, A. Conde Garcia15, M.M. Dabrowski15, G. De Lentdecker5, R. De Oliveira15, G. de Robertis2, S. Dildick9,16, B. Dorney15, W. Elmetenawee8, G. Fabrice27, S. Ferry15, P. Giacomelli4, J. Gilmore9, L. Guiducci4, A. Gutierrez12, R.M. Hadjiiska28, A. Hassan8, J. Hauser21, K. Hoepfner1, M. Hohlmann22, H. Hoorani17, Y.G. Jeng18, T. Kamon9, P.E. Karchin12, H. Kim18, S. Krutelyov9, A. Kumar11, J. Lee31, J. Lee31, T. Lenzi5, L. Litov28, F. Loddo2, T. Maerschalk5, G. Magazzu26, M. Maggi2, Y. Maghrbi13, A. Magnani25, N. Majumdar19, P.K. Mal6, K. Mandal6, A. Marchioro15, A. Marinov15, J.A. Merlin15, N. Mohammed11, A.K. Mohanty23, A. Mohapatra22, S. Muhammad17, S. Mukhopadhyay19, S. Nuzzo2, E. Oliveri15, L.M. Pant23, P. Paolucci24, I. Park31, G. Passeggio24, B. Pavlov28, B. Philipps1, M. Phipps22, D. Piccolo14, H. Postema15, G. Pugliese2, A. Puig Baranac15, A. Radi7, R. Radogna2, G. Raffone14, S. Ramkrishna11, A. Ranieri2, C. Riccardi25, A. Rodrigues15, L. Ropelewski15, S. Roychoddhury19, M.S. Ryu18, G. Ryu31, A. Safonov9, A. Sakharov10, S. Salva16, G. Saviano14, A. Sharma15, S.K. Swain6, J.P. Talvitie15, C. Tamma2, A. Tatarinov9, N. Turini26, T. Tuuva20, J. Twigger22, M. Tytgat16, I. Vai25, M. van Stenis15, R. Venditi2, E. Verhagen5, P. Verwilligen2, P. Vitulo25, U. Yang30, Y. Yang5, R. Yonamine5, N. Zaganidis16, F. Zenoni5 and A. Zhang22
The CMS collaboration considers upgrading the muon forward region which is particularly affected by the high-luminosity conditions at the LHC. The proposal involves Gas Electron Multiplier (GEM) chambers, which are able to handle the extreme particle rates expected in this region along with a high spatial resolution. This 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 and its impact on the CMS performance.
