Performance of the CMS high-level trigger during LHC Run 2

被引：0

作者：

Hayrapetyan, A. ^{[1
]}

Tumasyan, A. ^{[1
,210
]}

Adam, W. ^{[2
]}

Andrejkovic, J. W. ^{[2
]}

Benato, L. ^{[2
]}

Bergauer, T. ^{[2
]}

Chatterjee, S. ^{[2
,65
]}

Damanakis, K. ^{[2
]}

Dragicevic, M. ^{[2
]}

Hussain, P. S. ^{[2
]}

Jeitler, M. ^{[2
,211
]}

Krammer, N. ^{[2
]}

Li, A. ^{[2
]}

Liko, D. ^{[2
]}

Mikulec, I. ^{[2
]}

Schieck, J. ^{[2
,211
]}

Schoefbeck, R. ^{[2
,211
]}

Schwarz, D. ^{[2
]}

Sonawane, M. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wulz, C. -E. ^{[2
,211
]}

Janssen, T. ^{[3
]}

Van Laer, T. ^{[3
]}

Van Mechelen, P. ^{[3
]}

Breugelmans, N. ^{[4
]}

D'Hondt, J. ^{[4
]}

Dansana, S. ^{[4
]}

De Moor, A. ^{[4
]}

Delcourt, M. ^{[4
]}

Heyen, F. ^{[4
]}

Lowette, S. ^{[4
]}

Makarenko, I. ^{[4
]}

Mueller, D. ^{[4
]}

Tavernier, S. ^{[4
]}

Tytgat, M. ^{[4
,212
]}

Van Onsem, G. P. ^{[4
]}

Van Putte, S. ^{[4
]}

Vannerom, D. ^{[4
]}

Beghin, D. ^{[5
]}

Bilin, B. ^{[5
]}

Brun, H. ^{[5
]}

Clerbaux, B. ^{[5
]}

Das, A. K. ^{[5
]}

De Bruyn, I. ^{[5
]}

De Lentdecker, G. ^{[5
]}

Evard, H. ^{[5
]}

Favart, L. ^{[5
]}

Gianneios, P. ^{[5
]}

Jaramillo, J. ^{[5
]}

Khalilzadeh, A. ^{[5
]}

机构：

[1] Yerevan Phys Inst, Yerevan, Armenia

[2] Inst Hochenergiephys, Vienna, Austria

[3] Univ Antwerp, Antwerp, Belgium

[4] Vrije Univ Brussel, Brussels, Belgium

[5] Univ Libre Bruxelles, Brussels, Belgium

[6] Univ Ghent, Ghent, Belgium

[7] Catholic Univ Louvain, Louvain La Neuve, Belgium

[8] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[9] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

[10] Univ Fed ABC, Univ Estadual Paulista, Sao Paulo, Brazil

[11] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[12] Univ Sofia, Sofia, Bulgaria

[13] Univ Tarapaca, Inst Alta Invest, Casilla 7 D, Arica, Chile

[14] Beihang Univ, Beijing, Peoples R China

[15] Tsinghua Univ, Dept Phys, Beijing, Peoples R China

[16] Inst High Energy, Beijing, Peoples R China

[17] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[18] South China Normal Univ, Guangdong Prov Key Lab Nucl Sci, Guangzhou, Peoples R China

[19] South China Normal Univ, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou, Peoples R China

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

[21] Univ Sci & Technol China, Hefei, Peoples R China

[22] Nanjing Normal Univ, Nanjing, Peoples R China

[23] Fudan Univ, Inst Modern Phys, Shanghai, Peoples R China

[24] Fudan Univ, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai, Peoples R China

[25] Zhejiang Univ, Hangzhou, Zhejiang, Peoples R China

[26] Univ Los Andes, Bogota, Colombia

[27] Univ Antioquia, Medellin, Colombia

[28] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[29] Univ Split, Fac Sci, Split, Croatia

[30] Inst Rudjer Boskovic, Zagreb, Croatia

[31] Univ Cyprus, Nicosia, Cyprus

[32] Charles Univ Prague, Prague, Czech Republic

[33] Escuela Politec Nacl, Quito, Ecuador

[34] Univ San Francisco Quito, Quito, Ecuador

[35] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt

[36] Fayoum Univ, Ctr High Energy Phys CHEP FU, Al Fayyum, Egypt

[37] NICPB, Tallinn, Estonia

[38] Univ Helsinki, Dept Phys, Helsinki, Finland

[39] Helsinki Inst Phys, Helsinki, Finland

[40] Lappeenranta Lahti Univ Technol, Lappeenranta, Finland

[41] Univ Paris Saclay, CEA, IRFU, Gif Sur Yvette, France

[42] Inst Polytech Paris, Ecole Polytech, Lab Leprince Ringuet, CNRS,IN2P3, Palaiseau, France

[43] Univ Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France

[44] CNRS, IN2P3, Ctr Calcul, Inst Natl Phys Nucl & Phys Particules, Villeurbanne, France

[45] Inst Phys 2 Infinis Lyon IP2I, Villeurbanne, France

[46] Georgian Tech Univ, Tbilisi, Georgia

[47] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

[48] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[49] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany

[50] Deutsch Elekt Synchrotron, Hamburg, Germany

来源：

JOURNAL OF INSTRUMENTATION | 2024年 / 19卷 / 11期

基金：

芬兰科学院; 巴西圣保罗研究基金会; 欧洲研究理事会; 美国国家科学基金会; 欧盟地平线“2020”;

关键词：

Large detector systems for particle and astroparticle physics; Trigger concepts and systems (hardware and software);

D O I：

10.1088/1748-0221/19/11/P11021

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The CERN LHC provided proton and heavy ion collisions during its Run 2 operation period from 2015 to 2018. Proton-proton collisions reached a peak instantaneous luminosity of 2.1 x 10(34) cm(-2)s(-1), twice the initial design value, at root s = 13 TeV. The CMS experiment records a subset of the collisions for further processing as part of its online selection of data for physics analyses, using a two-level trigger system: the Level-1 trigger, implemented in custom-designed electronics, and the high-level trigger, a streamlined version of the offline reconstruction software running on a large computer farm. This paper presents the performance of the CMS high-level trigger system during LHC Run 2 for physics objects, such as leptons, jets, and missing transverse momentum, which meet the broad needs of the CMS physics program and the challenge of the evolving LHC and detector conditions. Sophisticated algorithms that were originally used in offline reconstruction were deployed online. Highlights include a machine-learning b tagging algorithm and a reconstruction algorithm for tau leptons that decay hadronically.

引用

页数：62

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