Characterisation and mitigation of beam-induced backgrounds observed in the ATLAS detector during the 2011 proton-proton run

被引：60

作者：

Aad, G. ^{[74
]}

Abajyan, T. ^{[35
]}

Abbott, B. ^{[153
]}

Abdallah, J. ^{[17
,18
,19
]}

Khalek, S. Abdel ^{[157
]}

Abdelalim, A. A. ^{[75
]}

Abdinov, O. ^{[16
]}

Aben, R. ^{[146
,147
]}

Abi, B. ^{[154
]}

Abolins, M. ^{[126
]}

AbouZeid, O. S. ^{[215
]}

Abramowicz, H. ^{[210
]}

Abreu, H. ^{[190
]}

Acharya, B. S. ^{[222
,223
,242
]}

Adamczyk, L. ^{[63
]}

Adams, D. L. ^{[42
]}

Addy, T. N. ^{[86
]}

Adelman, J. ^{[239
]}

Adomeit, S. ^{[137
]}

Adragna, P. ^{[110
]}

Adye, T. ^{[175
]}

Aefsky, S. ^{[37
]}

Aguilar-Saavedra, J. A. ^{[5
,169
,170
,243
]}

Agustoni, M. ^{[26
,27
]}

Aharrouche, M. ^{[118
]}

Ahlen, S. P. ^{[36
]}

Ahles, F. ^{[74
]}

Ahmad, A. ^{[150
,205
]}

Ahsan, M. ^{[66
]}

Aielli, G. ^{[180
,181
]}

Akdogan, T. ^{[29
]}

Akesson, T. P. A. ^{[116
]}

Akimoto, G. ^{[212
]}

Akimov, A. V. ^{[133
]}

Alam, M. S. ^{[2
]}

Alam, M. A. ^{[111
]}

Albert, J. ^{[232
]}

Albrand, S. ^{[83
,84
,85
]}

Aleksa, M. ^{[49
]}

Aleksandrov, I. N. ^{[96
]}

Alessandria, F. ^{[127
]}

Alexa, C. ^{[43
]}

Alexander, G. ^{[210
]}

Alexandre, G. ^{[75
]}

Alexopoulos, T. ^{[15
]}

Alhroob, M. ^{[222
,224
]}

Aliev, M. ^{[25
]}

Alimonti, G. ^{[127
]}

Alison, J. ^{[163
]}

Allbrooke, B. M. M. ^{[28
]}

机构：

[1] Univ Adelaide, Sch Chem & 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] Dumlupinar Univ, Dept Phys, Kutahya, Turkey

[6] Gazi Univ, Dept Phys, Ankara, Turkey

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

[8] Turkish Atom Energy Commiss, Ankara, Turkey

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

[10] Univ Savoie, Annecy Le Vieux, France

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

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

[13] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

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

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

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

[17] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[18] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain

[19] ICREA, Barcelona, Spain

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

[21] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia

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

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

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

[25] Humboldt Univ, Dept Phys, Berlin, Germany

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

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

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

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

[30] Dogus Univ, Div Phys, Istanbul, Turkey

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

[32] Istanbul Tech Univ, Dept Phys, TR-80626 Istanbul, Turkey

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

[34] Univ Bologna, Dipartmento Fis, Bologna, Italy

[35] Univ Bonn, Inst Phys, Bonn, Germany

[36] Boston Univ, Dept Phys, Boston, MA 02215 USA

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

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

[39] Univ Fed Juiz de Fora, Juiz de Fora, Brazil

[40] Fed Univ Sao Joao Rei UFSJ, Sao Joao Del Rei, Brazil

[41] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil

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

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

[44] Univ Politehn Bucuresti, Bucharest, Romania

[45] West Univ Timisoara, Timisoara, Romania

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

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

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

[49] CERN, Geneva, Switzerland

[50] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

来源：

JOURNAL OF INSTRUMENTATION | 2013年 / 8卷

基金：

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

关键词：

Pattern recognition; cluster finding; calibration and fitting methods; Performance of High Energy Physics Detectors; Accelerator modelling and simulations (multi-particle dynamics; single-particle dynamics); Analysis and statistical methods;

D O I：

10.1088/1748-0221/8/07/P07004

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper presents a summary of beam-induced backgrounds observed in the ATLAS detector and discusses methods to tag and remove background contaminated events in data. Trigger-rate based monitoring of beam-related backgrounds is presented. The correlations of backgrounds with machine conditions, such as residual pressure in the beam-pipe, are discussed. Results from dedicated beam-background simulations are shown, and their qualitative agreement with data is evaluated. Data taken during the passage of unpaired, i.e. non-colliding, proton bunches is used to obtain background-enriched data samples. These are used to identify characteristic features of beam-induced backgrounds, which then are exploited to develop dedicated background tagging tools. These tools, based on observables in the Pixel detector, the muon spectrometer and the calorimeters, are described in detail and their efficiencies are evaluated. Finally an example of an application of these techniques to a monojet analysis is given, which demonstrates the importance of such event cleaning techniques for some new physics searches.

引用

页数：72

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