Performance of prototype GE1/1 chambers for the CMS muon spectrometer upgrade

被引：7

作者：

Abbas, M. ^{[11
]}

Abbrescia, M. ^{[17
,18
]}

Abdalla, H. ^{[8
]}

Abu Zeid, S. ^{[9
]}

Agapitos, A. ^{[4
]}

Ahmad, A. ^{[30
]}

Ahmed, A. ^{[8
,14
]}

Ahmed, W. ^{[30
]}

Asghar, I ^{[30
]}

Aspell, P. ^{[34
]}

Avila, C. ^{[6
]}

Babbar, J. ^{[13
]}

Ban, Y. ^{[5
]}

Band, R. ^{[36
]}

Bansal, S. ^{[13
]}

Benussi, L. ^{[21
,22
]}

Bhatnagar, V ^{[13
]}

Bianco, M. ^{[34
]}

Bianco, S. ^{[21
,22
]}

Black, K. ^{[39
]}

Borgonovi, L. ^{[19
,20
]}

Bouhali, O. ^{[31
]}

Braghieri, A. ^{[24
,25
]}

Braibant, S. ^{[19
,20
]}

Butalla, S. ^{[40
]}

Calzaferri, S. ^{[24
,25
]}

Caponero, M. ^{[21
,22
]}

Cassese, F. ^{[23
]}

Cavallo, N. ^{[23
]}

Chauhan, S. ^{[13
]}

Colafranceschi, S. ^{[40
]}

Colaleo, A. ^{[17
,18
]}

Garcia, A. Conde ^{[34
]}

Dalchenko, M. ^{[35
]}

De Iorio, A. ^{[23
]}

De Lentdecker, G. ^{[1
]}

Olio, D. Dell ^{[17
,18
]}

De Robertis, G. ^{[17
,18
]}

Dharmaratna, W. ^{[33
]}

Dildick, S. ^{[35
]}

Dorney, B. ^{[1
]}

Erbacher, R. ^{[36
]}

Fabozzi, F. ^{[23
]}

Fallavollita, F. ^{[34
]}

Fiorina, D. ^{[24
,25
]}

Fontanesi, E. ^{[19
,20
]}

Franco, M. ^{[17
,18
]}

Galloni, C. ^{[39
]}

Giacomelli, P. ^{[19
,20
]}

Gilmore, J. ^{[35
]}

机构：

[1] Univ Libre Bruxelles, Brussels, Belgium

[2] Univ Ghent, Ghent, Belgium

[3] Inst Nucl Energy Res, Sofia, Bulgaria

[4] Peking Univ, Beijing, Peoples R China

[5] Sun Yat Sen Univ, Guangzhou, Peoples R China

[6] Univ Los Andes, Bogota, Colombia

[7] Univ Antioquia, Medellin, Colombia

[8] Acad Sci Res & Technol ENHEP, Cairo, Egypt

[9] Lappeenranta Univ Technol, Lappeenranta, Finland

[10] Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany

[11] Karlsruhe Inst Technol, Karlsruhe, Germany

[12] Inst Nucl Res ATOMKI, Debrecen, Hungary

[13] Panjab Univ, Chandigarh, India

[14] Delhi Univ, Delhi, India

[15] Saha Inst Nucl Phys, Kolkata, India

[16] Bhabha Atom Res Ctr, Mumbai, Maharashtra, India

[17] Univ Bari, Politecn Bari, Bari, Italy

[18] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy

[19] Univ Bologna, Bologna, Italy

[20] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

[21] Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy

[22] Univ Napoli, Naples, Italy

[23] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy

[24] Univ Pavia, Pavia, Italy

[25] Ist Nazl Fis Nucl, Sez Pavia, Pavia, Italy

[26] Korea Univ, Seoul, South Korea

[27] Seoul Natl Univ, Seoul, South Korea

[28] Univ Seoul, Seoul, South Korea

[29] Vilnius Univ, Vilnius, Lithuania

[30] Natl Ctr Phys, Islamabad, Pakistan

[31] Texas A&M Univ Qatar, Doha, Qatar

[32] Univ Colombo, Colombo, Sri Lanka

[33] Univ Ruhuna, Matara, Sri Lanka

[34] CERN, Geneva, Switzerland

[35] Texas A&M Univ, College Stn, TX USA

[36] Univ Calif Davis, Davis, CA 95616 USA

[37] Wayne State Univ, Detroit, MI USA

[38] Univ Calif Los Angeles, Los Angeles, CA USA

[39] Univ Wisconsin, Madison, WI USA

[40] Florida Inst Technol, Melbourne, FL 32901 USA

[41] Univ Bergamo, Bergamo, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2020年 / 972卷 / 972期

关键词：

GEM; CMS; High Luminosity LHC; GEM;

D O I：

10.1016/j.nima.2020.164104

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The high-luminosity phase of the Large Hadron Collider (HL-LHC) will result in ten times higher particle background than measured during the first phase of LHC operation. In order to fully exploit the highly-demanding operating conditions during HL-LHC, the Compact Muon Solenoid (CMS) Collaboration will use Gas Electron Multiplier (GEM) detector technology. The technology will be integrated into the innermost region of the forward muon spectrometer of CMS as an additional muon station called GE1/1. The primary purpose of this auxiliary station is to help in muon reconstruction and to control level-1 muon trigger rates in the pseudo-rapidity region 1.6 <= vertical bar eta vertical bar <= 2.2. The new station will contain trapezoidal-shaped GEM detectors called GE1/1 chambers. The design of these chambers is finalized, and the installation is in progress during the Long Shutdown phase two (LS-2) that started in 2019. Several full-size prototypes were built and operated successfully in various test beams at CERN. We describe performance measurements such as gain, efficiency, and time resolution of these prototype chambers, developed after years of R&D, and summarize their behavior in different gas compositions as a function of the applied voltage.

引用

页数：9

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