Performance of b-jet identification in the ATLAS experiment

被引：244

作者：

Aad, G. ^{[119
,120
]}

Abbott, B. ^{[152
]}

Abdallah, J. ^{[212
]}

Abdinov, O. ^{[14
]}

Aben, R. ^{[145
,146
]}

Abolins, M. ^{[125
]}

AbouZeid, O. S. ^{[220
]}

Abramowicz, H. ^{[214
]}

Abreu, H. ^{[213
]}

Abreu, R. ^{[42
]}

Abulaiti, Y. ^{[205
,206
]}

Acharya, B. S. ^{[228
,229
,249
]}

Adamczyk, L. ^{[59
]}

Adams, D. L. ^{[36
]}

Adelman, J. ^{[147
]}

Adomeit, S. ^{[136
]}

Adye, T. ^{[179
]}

Affolder, A. A. ^{[105
]}

Agatonovic-Jovin, T. ^{[16
]}

Aguilar-Saavedra, J. A. ^{[168
,173
,174
]}

Ahlen, S. P. ^{[30
]}

Ahmadov, F. ^{[14
,94
]}

Aielli, G. ^{[182
,183
]}

Akerstedt, H. ^{[205
,206
]}

Akesson, T. P. A. ^{[115
]}

Akimoto, G. ^{[216
,217
]}

Akimov, A. V. ^{[132
]}

Alberghi, G. L. ^{[27
,28
]}

Albert, J. ^{[239
]}

Albrand, S. ^{[80
]}

Alconada Verzini, M. J. ^{[100
,101
]}

Aleksa, M. ^{[42
]}

Aleksandrov, I. N. ^{[94
]}

Alexa, C. ^{[37
]}

Alexander, G. ^{[214
]}

Alexopoulos, T. ^{[13
]}

Alhroob, M. ^{[152
]}

Alimonti, G. ^{[126
]}

Alio, L. ^{[119
,120
]}

Alison, J. ^{[43
]}

Alkire, S. P. ^{[55
]}

Allbrooke, B. M. M. ^{[23
]}

Allport, P. P. ^{[23
]}

Aloisio, A. ^{[110
,141
,142
,168
]}

Alonso, A. ^{[56
]}

Alonso, F. ^{[100
,101
]}

Alpigiani, C. ^{[108
]}

Altheimer, A. ^{[55
]}

Gonzalez, B. Alvarez ^{[42
]}

Alvarez Piqueras, D. ^{[233
,234
,235
,236
,237
]}

机构：

[1] Univ Adelaide, Dept Phys, Adelaide, SA, Australia

[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA

[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[4] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey

[5] Istanbul Aydin Univ, Istanbul, Turkey

[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[7] CNRS, IN2P3, LAPP, Annecy Le Vieux, France

[8] Univ Savoie Mont Blanc, Annecy Le Vieux, France

[9] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[10] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[11] Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA

[12] Univ Athens, Dept Phys, Athens, Greece

[13] Natl Tech Univ Athens, Dept Phys, Zografos, Greece

[14] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan

[15] Barcelona Inst Sci & Technol, Inst Fis Altes Energies, Barcelona, Spain

[16] Univ Belgrade, Inst Phys, Belgrade, Serbia

[17] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[18] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[19] Univ Calif Berkeley, Berkeley, CA 94720 USA

[20] Humboldt Univ, Dept Phys, Invalidenstr 110, Berlin, Germany

[21] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[22] Univ Bern, High Energy Phys Lab, Bern, Switzerland

[23] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[24] Bogazici Univ, Dept Phys, Istanbul, Turkey

[25] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey

[26] Dogus Univ, Dept Phys, Istanbul, Turkey

[27] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[28] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[29] Univ Bonn, Inst Phys, Nussallee 12, Bonn, Germany

[30] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA

[31] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[32] Univ Fed Rio de Janeiro, COPPE EE IF, Rio De Janeiro, Brazil

[33] Fed Univ Juiz de Fora UFJF, Elect Circuits Dept, Juiz De Fora, Brazil

[34] Fed Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil

[35] Univ Sao Paulo, Inst Fis, CP 20516, BR-01498 Sao Paulo, Brazil

[36] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[37] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[38] Natl Inst Res & Dev Isotop & Mol Technol, Dept Phys, Cluj Napoca, Romania

[39] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[40] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[41] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada

[42] CERN, Geneva, Switzerland

[43] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA

[44] Pontificia Univ Catolica Chile, Dept Fis, Alameda 340, Santiago, Chile

[45] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[46] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[47] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China

[48] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China

[49] Shandong Univ, Sch Phys, Jinan, Shandong, Peoples R China

[50] Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Dept Phys & Astron, Shanghai 200030, Peoples R China

来源：

JOURNAL OF INSTRUMENTATION | 2016年 / 11卷

基金：

加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会; 欧盟地平线“2020”; 美国国家科学基金会;

关键词：

Large detector systems for particle and astroparticle physics; Large detector-systems performance; Pattern recognition; cluster finding; calibration and fitting methods; Performance of High Energy Physics Detectors; QUARK-PAIR PRODUCTION; CROSS-SECTION; PARTON DISTRIBUTIONS; HADRON COLLIDERS; MATRIX-ELEMENTS; COLLISIONS;

D O I：

10.1088/1748-0221/11/04/P04008

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The identification of jets containing b hadrons is important for the physics programme of the ATLAS experiment at the Large Hadron Collider. Several algorithms to identify jets containing b hadrons are described, ranging from those based on the reconstruction of an inclusive secondary vertex or the presence of tracks with large impact parameters to combined tagging algorithms making use of multi-variate discriminants. An independent b-tagging algorithm based on the reconstruction of muons inside jets as well as the b-tagging algorithm used in the online trigger are also presented. The b-jet tagging efficiency, the c-jet tagging efficiency and the mistag rate for light flavour jets in data have been measured with a number of complementary methods. The calibration results are presented as scale factors defined as the ratio of the efficiency (or mistag rate) in data to that in simulation. In the case of b jets, where more than one calibration method exists, the results from the various analyses have been combined taking into account the statistical correlation as well as the correlation of the sources of systematic uncertainty.

引用

页数：126

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