The CMS Collaboration is evaluating GEM detectors for the upgrade of the muon system. This contribution will focus on the R&D performed on chambers design features and will discuss the performance of the upgraded detector

Abbaneo, D.

Abbas, M.

Abbrescia, M.

Abdelalim, A. A.

Aboamer, O.

Acosta, D.

Ahmad, A.

Ahmed, W.

Akl, M. Abi

Aleksandrov, A.

Altieri, P.

Aly, R.

Asawatangtrakuldee, C.

Aspell, P.

Assran, Y.

Awan, I.

Bally, S.

Ban, Y.

Banerjee, S.

Baranac, A. Puig

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, F. R.

Celik, A.

Choi, M.

Choi, S.

Christiansen, J.

Cimmino, Anna

Colafranceschi, S.

Colaleo, A.

Czellar, S.

Dabrowski, M. M.

De Lentdecker, G.

De Oliveira, R.

de Robertis, G.

Dildick, S.

Dorney, B.

Elmetenawee, W.

Endroczi, G.

Errico, F.

Fenyvesi, A.

Ferry, S.

Furic, I.

Garcia, A. Conde

Giacomelli, P.

Gilmore, J.

Golovtsov, V.

Guiducci, L.

Guilloux, F.

Gutierrez, A.

Hadjiiska, R. M.

Hassan, A.

Hauser, J.

Hoepfner, K.

Hohlmann, M.

Hoorani, H.

Iaydjiev, P.

Jeng, Y. G.

Kamon, T.

Karchin, P.

Kim, H.

Korytov, A.

Krutelyov, S.

Kumar, A.

Lee, J.

Lenzi, T.

Litov, L.

Loddo, F.

Madorsky, A.

Maerschalk, T.

Maggi, M.

Magnani, A.

Majumdar, N.

Mal, P. K.

Mandal, K.

Marchioro, A.

Marinov, A.

Masod, R.

Merlin, J. A.

Mitselmakher, G.

Mohamed, S.

Mohanty, A. K.

Mohapatra, A.

English

Vai, I.

Ghent University Academic Bibliography

DOI 10.1393/ncc/i2016-16269-xColloquia: IFAE 2015IL NUOVO CIMENTO 39 C (2016) 269Development and performance of Triple-GEM detectors for theupgrade of the muon system of the CMS experimentI. Vai(27), D. Abbaneo(18), M. Abbas(18), M. Abbrescia(2),A. A. Abdelalim(9), M. Abi Akl(14), O. Aboamer(8), D. Acosta(16),A. Ahmad(20), W. Ahmed(9), W. Ahmed(20), A. Aleksandrov(29), R. Aly(9),P. Altieri(2), C. Asawatangtrakuldee(3), P. Aspell(18), Y. Assran(8),I. Awan(20), S. Bally(18), Y. Ban(3), S. Banerjee(21), V. Barashko(16),P. Barria(5), G. Bencze(7), N. Beni(11), L. Benussi(15), V. Bhopatkar(24),S. Bianco(15), J. Bos(18), O. Bouhali(14), A. Braghieri(27), S. Braibant(4),S. Buontempo(26), C. Calabria(2), M. Caponero(15), C. Caputo(2),F. Cassese(26), A. Castaneda(14), S. Cauwenbergh(19), F. R. Cavallo(4),A. Celik(10), M. Choi(33), S. Choi(31), J. Christiansen(18), A. Cimmino(19),S. Colafranceschi(18), A. Colaleo(2), A. Conde Garcia(18), S. Czellar(11),M. M. Dabrowski(18), G. De Lentdecker(5), R. De Oliveira(18),G. de Robertis(2), S. Dildick(10)(19), B. Dorney(18), W. Elmetenawee(9),G. Endroczi(7), F. Errico(2), A. Fenyvesi(11), S. Ferry(18), I. Furic(16),P. Giacomelli(4), J. Gilmore(10), V. Golovtsov(17), L. Guiducci(4),F. Guilloux(28), A. Gutierrez(13), R. M. Hadjiiska(29), A. Hassan(9),J. Hauser(23), K. Hoepfner(1), M. Hohlmann(24), H. Hoorani(20),P. Iaydjiev(29), Y. G. Jeng(33), T. Kamon(10), P. Karchin(13), A. Korytov(16),S. Krutelyov(10), A. Kumar(12), H. Kim(33), J. Lee(33), T. Lenzi(5),L. Litov(30), F. Loddo(2), A. Madorsky(16), T. Maerschalk(5), M. Maggi(2),A. Magnani(27), P. K. Mal(6), K. Mandal(6), A. Marchioro(18),A. Marinov(18), R. Masod(8), N. Majumdar(21), J. A. Merlin(18)(34),G. Mitselmakher(16), A. K. Mohanty(25), S. Mohamed(8), A. Mohapatra(24),J. Molnar(11), S. Muhammad(20), S. Mukhopadhyay(21), M. Naimuddin(12),S. Nuzzo(2), E. Oliveri(18), L. M. Pant(25), P. Paolucci(26), I. Park(33),G. Passeggio(26), B. Pavlov(30), B. Philipps(1), D. Piccolo(15), H. Postema(18),A. Puig Baranac(18), A. Radi(8), R. Radogna(2), G. Raffone(15),A. Ranieri(2), G. Rashevski(29), C. Riccardi(27), M. Rodozov(29),A. Rodrigues(18), L. Ropelewski(18), S. RoyChowdhury(21), G. Ryu(33),M. S. Ryu(33), A. Safonov(10), S. Salva(19), G. Saviano(15), A. Sharma(2),A. Sharma(18), R. Sharma(12), A. H. Sha(12), M. Shopova(29), J. Sturdy(13),G. Sultanov(29), S. K. Swain(6), Z. Szillasi(11), J. Talvitie(22),A. Tatarinov(10), T. Tuuva(22), M. Tytgat(19), M. Van Stenis(18),R. Venditti(2), E. Verhagen(5), P. Verwilligen(2), P. Vitulo(27),S. Volkov(17), A. Vorobyev(17), D. Wang(3), M. Wang(3), U. Yang(32),Y. Yang(5), R. Yonamine(5), N. Zaganidis(19), F. Zenoni(5) and A. Zhang(24)(1) RWTH Aachen University, III Physikalisches Institut A - Aachen, Germany(2) INFN, Sezione di Bari and University of Bari - Bari, Italy(3) Peking University - Beijing, China(4) INFN, Sezione di Bologna and University of Bologna - Bologna, ItalyCreative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0) 12 I. VAI et al.(5) Universite Libre de Bruxelles - Brussels, Belgium(6) National Institute of Science Education and Research - Bhubaneswar(7) Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, HungarianAcademy of Sciences - Budapest, Hungary(8) Academy of Scientiﬁc Research and Technology - Egyptian Network of High Energy Physics,ASRT-ENHEP - Cairo, Egypt(9) Helwan University & CTP - Cairo, Egypt(10) Texas A&M University, College Station - TX USA(11) Institute for Nuclear Research of the Hungarian Academy of Sciences (ATOMKI)Debrecen, Hungary(12) University of Delhi - Delhi, India(13) Wayne State University - Detroit, MI USA(14) Texas A&M University at Qatar - Doha, Qatar(15) INFN, Laboratori Nazionali di Frascati - Frascati (RM), Italy(16) University of Florida - Gainesville, FL USA(17) Petersburg Nuclear Physics Institute - Gatchina, Russia(18) CERN - Geneva, Switzerland(19) Ghent University, Dept. of Physics and Astronomy - Ghent, Belgium(20) National Center for Physics, Quaid-i-Azam University Campus - Islamabad, Pakistan(21) Saha Institute of Nuclear Physics - Kolkata, India(22) Lappeenranta University of Technology - Lappeenranta, Finland(23) University of California - Los Angeles, CA USA(24) Florida Institute of Technology - Melbourne, FL USA(25) Bhabha Atomic Research Centre - Mumbai, India(26) INFN, Sezione di Napoli - Napoli, Italy(27) INFN, Sezione di Pavia and University of Pavia - Pavia, Italy(28) IRFU CEA-Saclay - Saclay, France(29) Institute for Nuclear Research and Nuclear Energy - Soﬁa, Bulgaria(30) Soﬁa University - Soﬁa, Bulgaria(31) Korea University - Seoul, Korea(32) Seoul National University - Seoul, Korea(33) University of Seoul - Seoul, Korea(34) Institut Pluridisciplinaire - Hubert Curien (IPHC) - Strasbourg, Francereceived 7 January 2016Summary. — The CMS Collaboration is evaluating GEM detectors for the upgradeof the muon system. This contribution will focus on the R&D performed on cham-bers design features and will discuss the performance of the upgraded detector.The Compact Muon Solenoid (CMS) Collaboration is evaluating the implementationof new muon stations in the high η region of the muon system. Among the technologiesconsidered, Gas Electron Multiplier (GEM) detectors are expected to fulﬁll the High-Luminosity LHC (HL-LHC) requirements in spatial, angular and time resolutions, aswell as in rate capability and radiation hardness [3].Gas Electron Multipliers are a well-known technology, detailed informations on theiroperational principle can be found in [1] and [2]. The work of the GEM Collaborationfocused therefore on the improvement of the streching technique, the mechanics, theDEVELOPMENT OF TRIPLE-GEM DETECTORS FOR THE CMS MUON SYSTEM UPGRADE 3Fig. 1. – Eﬀective gas gain as a function of the incident photon rate measured with the fourthGE1/1 detector prototype, operated with Ar/CO2/CF4 45:15:40 and irradiated with a Ag X-Raysource (peak energy 22 keV). The dashed line represent the expected rate in the CMS muonsystem [3].assembly procedure and so on. Five generations of full-size GE1/1 (GEM Endcap 1/1)prototypes were developed between 2010 and 2014: the R&D activity led to the designof a ﬁnal detector that can be assembled in few hours, with foils mechanically stretchedand without gluing any component. The gaps conﬁguration has been perfected in orderto achieve a higher signal speed.The results of test beams performed at CERN and at Fermilab show that the de-veloped detector matches the HL-LHC requests in detection eﬃciency (97–98%), timingresolution (few ns), angular resolution (100–160μrad), spatial resolution (200–300μm)and rate capability, as shown in ﬁg. 1 where the dashed line represent the expected ratein the CMS muon system. The presence of a strong magnetic ﬁeld (up to 1.5T) does notdeteriorate the performance of GE1/1 detector. Aging tests performed at the GammaIrradiation Facility (GIF) at CERN show no drop in the gain due to accumulated doseup to 10mC/cm2, and will continue to investigate charges higher than 100mC/cm2 [3],i.e. the expected integrated charge value obtained in 20 years of operation of HL-LHC.In conclusion, the results obtained in several test beams highlight that the R&Dperformed on GEM detectors led to the development of a prototype capable of sustainingthe harsh conditions of HL-LHC. Consequently, a ﬁrst installation of a demonstratorwithin the CMS muon system is foreseen for 2016-2017 and, after that, the installationof a full GEM station in the region 1.6 < |η| < 2.2 (GE1/1) is planned for 2018-2019.∗ ∗ ∗We gratefully acknowledge support from FRS-FNRS (Belgium), FWO-Flanders(Belgium), BSF-MES (Bulgaria), BMBF (Germany), DAE (India), DST (India), INFN(Italy), NRF (Korea), QNRF (Qatar), and DOE (USA).REFERENCES[1] Sauli F., Nucl. Instrum. Methods A, 386 (1997) 531.[2] Sauli F., Gaseous Radiation Detectors Fundamentals and Applications, in CambridgeMonographs on Particle Physics, Nuclear Physics and Cosmology (Cambridge universityPress) 2014.[3] CMS GEM Collaboration, CMS-TDR-013 CERN-LHCC-2015-012 (2015).

Development and performance of Triple-GEM detectors for the upgrade of the muon system of the CMS experiment

Abi Akl, M.

Cimmino, A.

Conde Garcia, A.

Scientific Open-access Literature Archive and Repository

DOI 10.1393/ncc/i2016-16269-xColloquia: IFAE 2015IL NUOVO CIMENTO 39 C (2016) 269Development and performance of Triple-GEM detectors for theupgrade of the muon system of the CMS experimentI. Vai(27), D. Abbaneo(18), M. Abbas(18), M. Abbrescia(2),A. A. Abdelalim(9), M. Abi Akl(14), O. Aboamer(8), D. Acosta(16),A. Ahmad(20), W. Ahmed(9), W. Ahmed(20), A. Aleksandrov(29), R. Aly(9),P. Altieri(2), C. Asawatangtrakuldee(3), P. Aspell(18), Y. Assran(8),I. Awan(20), S. Bally(18), Y. Ban(3), S. Banerjee(21), V. Barashko(16),P. Barria(5), G. Bencze(7), N. Beni(11), L. Benussi(15), V. Bhopatkar(24),S. Bianco(15), J. Bos(18), O. Bouhali(14), A. Braghieri(27), S. Braibant(4),S. Buontempo(26), C. Calabria(2), M. Caponero(15), C. Caputo(2),F. Cassese(26), A. Castaneda(14), S. Cauwenbergh(19), F. R. Cavallo(4),A. Celik(10), M. Choi(33), S. Choi(31), J. Christiansen(18), A. Cimmino(19),S. Colafranceschi(18), A. Colaleo(2), A. Conde Garcia(18), S. Czellar(11),M. M. Dabrowski(18), G. De Lentdecker(5), R. De Oliveira(18),G. de Robertis(2), S. Dildick(10)(19), B. Dorney(18), W. Elmetenawee(9),G. Endroczi(7), F. Errico(2), A. Fenyvesi(11), S. Ferry(18), I. Furic(16),P. Giacomelli(4), J. Gilmore(10), V. Golovtsov(17), L. Guiducci(4),F. Guilloux(28), A. Gutierrez(13), R. M. Hadjiiska(29), A. Hassan(9),J. Hauser(23), K. Hoepfner(1), M. Hohlmann(24), H. Hoorani(20),P. Iaydjiev(29), Y. G. Jeng(33), T. Kamon(10), P. Karchin(13), A. Korytov(16),S. Krutelyov(10), A. Kumar(12), H. Kim(33), J. Lee(33), T. Lenzi(5),L. Litov(30), F. Loddo(2), A. Madorsky(16), T. Maerschalk(5), M. Maggi(2),A. Magnani(27), P. K. Mal(6), K. Mandal(6), A. Marchioro(18),A. Marinov(18), R. Masod(8), N. Majumdar(21), J. A. Merlin(18)(34),G. Mitselmakher(16), A. K. Mohanty(25), S. Mohamed(8), A. Mohapatra(24),J. Molnar(11), S. Muhammad(20), S. Mukhopadhyay(21), M. Naimuddin(12),S. Nuzzo(2), E. Oliveri(18), L. M. Pant(25), P. Paolucci(26), I. Park(33),G. Passeggio(26), B. Pavlov(30), B. Philipps(1), D. Piccolo(15), H. Postema(18),A. Puig Baranac(18), A. Radi(8), R. Radogna(2), G. Raffone(15),A. Ranieri(2), G. Rashevski(29), C. Riccardi(27), M. Rodozov(29),A. Rodrigues(18), L. Ropelewski(18), S. RoyChowdhury(21), G. Ryu(33),M. S. Ryu(33), A. Safonov(10), S. Salva(19), G. Saviano(15), A. Sharma(2),A. Sharma(18), R. Sharma(12), A. H. Sha(12), M. Shopova(29), J. Sturdy(13),G. Sultanov(29), S. K. Swain(6), Z. Szillasi(11), J. Talvitie(22),A. Tatarinov(10), T. Tuuva(22), M. Tytgat(19), M. Van Stenis(18),R. Venditti(2), E. Verhagen(5), P. Verwilligen(2), P. Vitulo(27),S. Volkov(17), A. Vorobyev(17), D. Wang(3), M. Wang(3), U. Yang(32),Y. Yang(5), R. Yonamine(5), N. Zaganidis(19), F. Zenoni(5) and A. Zhang(24)(1) RWTH Aachen University, III Physikalisches Institut A - Aachen, Germany(2) INFN, Sezione di Bari and University of Bari - Bari, Italy(3) Peking University - Beijing, China(4) INFN, Sezione di Bologna and University of Bologna - Bologna, ItalyCreative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0) 12 I. VAI et al.(5) Universite Libre de Bruxelles - Brussels, Belgium(6) National Institute of Science Education and Research - Bhubaneswar(7) Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, HungarianAcademy of Sciences - Budapest, Hungary(8) Academy of Scientific Research and Technology - Egyptian Network of High Energy Physics,ASRT-ENHEP - Cairo, Egypt(9) Helwan University & CTP - Cairo, Egypt(10) Texas A&M University, College Station - TX USA(11) Institute for Nuclear Research of the Hungarian Academy of Sciences (ATOMKI)Debrecen, Hungary(12) University of Delhi - Delhi, India(13) Wayne State University - Detroit, MI USA(14) Texas A&M University at Qatar - Doha, Qatar(15) INFN, Laboratori Nazionali di Frascati - Frascati (RM), Italy(16) University of Florida - Gainesville, FL USA(17) Petersburg Nuclear Physics Institute - Gatchina, Russia(18) CERN - Geneva, Switzerland(19) Ghent University, Dept. of Physics and Astronomy - Ghent, Belgium(20) National Center for Physics, Quaid-i-Azam University Campus - Islamabad, Pakistan(21) Saha Institute of Nuclear Physics - Kolkata, India(22) Lappeenranta University of Technology - Lappeenranta, Finland(23) University of California - Los Angeles, CA USA(24) Florida Institute of Technology - Melbourne, FL USA(25) Bhabha Atomic Research Centre - Mumbai, India(26) INFN, Sezione di Napoli - Napoli, Italy(27) INFN, Sezione di Pavia and University of Pavia - Pavia, Italy(28) IRFU CEA-Saclay - Saclay, France(29) Institute for Nuclear Research and Nuclear Energy - Sofia, Bulgaria(30) Sofia University - Sofia, Bulgaria(31) Korea University - Seoul, Korea(32) Seoul National University - Seoul, Korea(33) University of Seoul - Seoul, Korea(34) Institut Pluridisciplinaire - Hubert Curien (IPHC) - Strasbourg, Francereceived 7 January 2016Summary. — The CMS Collaboration is evaluating GEM detectors for the upgradeof the muon system. This contribution will focus on the R&D performed on cham-bers design features and will discuss the performance of the upgraded detector.The Compact Muon Solenoid (CMS) Collaboration is evaluating the implementationof new muon stations in the high η region of the muon system. Among the technologiesconsidered, Gas Electron Multiplier (GEM) detectors are expected to fulfill the High-Luminosity LHC (HL-LHC) requirements in spatial, angular and time resolutions, aswell as in rate capability and radiation hardness [3].Gas Electron Multipliers are a well-known technology, detailed informations on theiroperational principle can be found in [1] and [2]. The work of the GEM Collaborationfocused therefore on the improvement of the streching technique, the mechanics, theDEVELOPMENT OF TRIPLE-GEM DETECTORS FOR THE CMS MUON SYSTEM UPGRADE 3Fig. 1. – Effective gas gain as a function of the incident photon rate measured with the fourthGE1/1 detector prototype, operated with Ar/CO2/CF4 45:15:40 and irradiated with a Ag X-Raysource (peak energy 22 keV). The dashed line represent the expected rate in the CMS muonsystem [3].assembly procedure and so on. Five generations of full-size GE1/1 (GEM Endcap 1/1)prototypes were developed between 2010 and 2014: the R&D activity led to the designof a final detector that can be assembled in few hours, with foils mechanically stretchedand without gluing any component. The gaps configuration has been perfected in orderto achieve a higher signal speed.The results of test beams performed at CERN and at Fermilab show that the de-veloped detector matches the HL-LHC requests in detection efficiency (97–98%), timingresolution (few ns), angular resolution (100–160μrad), spatial resolution (200–300μm)and rate capability, as shown in fig. 1 where the dashed line represent the expected ratein the CMS muon system. The presence of a strong magnetic field (up to 1.5T) does notdeteriorate the performance of GE1/1 detector. Aging tests performed at the GammaIrradiation Facility (GIF) at CERN show no drop in the gain due to accumulated doseup to 10mC/cm2, and will continue to investigate charges higher than 100mC/cm2 [3],i.e. the expected integrated charge value obtained in 20 years of operation of HL-LHC.In conclusion, the results obtained in several test beams highlight that the R&Dperformed on GEM detectors led to the development of a prototype capable of sustainingthe harsh conditions of HL-LHC. Consequently, a first installation of a demonstratorwithin the CMS muon system is foreseen for 2016-2017 and, after that, the installationof a full GEM station in the region 1.6 < |η| < 2.2 (GE1/1) is planned for 2018-2019.∗ ∗ ∗We gratefully acknowledge support from FRS-FNRS (Belgium), FWO-Flanders(Belgium), BSF-MES (Bulgaria), BMBF (Germany), DAE (India), DST (India), INFN(Italy), NRF (Korea), QNRF (Qatar), and DOE (USA).REFERENCES[1] Sauli F., Nucl. Instrum. Methods A, 386 (1997) 531.[2] Sauli F., Gaseous Radiation Detectors Fundamentals and Applications, in CambridgeMonographs on Particle Physics, Nuclear Physics and Cosmology (Cambridge universityPress) 2014.[3] CMS GEM Collaboration, CMS-TDR-013 CERN-LHCC-2015-012 (2015).

Development and performance of Triple-GEM detectors for the

upgrade of the muon system of the CMS experiment

The CMS Collaboration is evaluating GEM detectors for the upgrade of the muon system. This contribution will focus on the R&D performed on chambers design features and will discuss the performance of the upgraded detecto

De Robertis, G.

Archivio della ricerca- Università di Roma La Sapienza

Development and performance of triple-gem detectors for the upgrade of the muon system of the cms experiment

Development and performance of Triple-GEM detectors for the upgrade of the muon system of the CMS experiment

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Ghent University Academic Bibliography

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