Emulating the impact of additional proton–proton interactions in the ATLAS simulation by presampling sets of inelastic Monte Carlo events

被引：15

作者：

Aad G. ^{[150
,246
]}

Abbott B. ^{[177
]}

Abbott D.C. ^{[151
]}

Abud A.A. ^{[62
,245
]}

Abeling K. ^{[81
]}

Abhayasinghe D.K. ^{[142
]}

Abidi S.H. ^{[45
]}

AbouZeid O.S. ^{[66
]}

Abraham N.L. ^{[213
]}

Abramowicz H. ^{[219
]}

Abreu H. ^{[218
]}

Abulaiti Y. ^{[8
]}

Hoffman A.C.A. ^{[200
]}

Acharya B.S. ^{[101
,102
,256
]}

Achkar B. ^{[81
]}

Adam L. ^{[148
]}

Bourdarios C.A. ^{[7
]}

Adamczyk L. ^{[131
]}

Adamek L. ^{[224
]}

Adelman J. ^{[169
]}

Adiguzel A. ^{[16
,271
]}

Adorni S. ^{[82
,247
]}

Adye T. ^{[197
]}

Affolder A.A. ^{[199
]}

Afik Y. ^{[218
]}

Agapopoulou C. ^{[99
]}

Agaras M.N. ^{[64
]}

Aggarwal A. ^{[167
]}

Agheorghiesei C. ^{[39
]}

Aguilar-Saavedra J.A. ^{[188
,193
,270
]}

Ahmad A. ^{[62
,245
]}

Ahmadov F. ^{[125
,272
]}

Ahmed W.S. ^{[152
]}

Ai X. ^{[150
,246
]}

Aielli G. ^{[116
,117
]}

Akatsuka S. ^{[134
]}

Akbiyik M. ^{[148
]}

Åkesson T.P.A. ^{[145
]}

Akilli E. ^{[82
,247
]}

Akimov A.V. ^{[159
]}

Khoury K.A. ^{[65
]}

Alberghi G.L. ^{[32
,33
]}

Albert J. ^{[234
]}

Verzini M.J.A. ^{[219
]}

Alderweireldt S. ^{[62
,245
]}

Aleksa M. ^{[62
,245
]}

Aleksandrov I.N. ^{[125
,272
]}

Alexa C. ^{[38
]}

Alexopoulos T. ^{[12
]}

Alfonsi A. ^{[168
]}

机构：

[1] Department of Physics, University of Adelaide, Adelaide

[2] Physics Department, SUNY Albany, Albany, NY

[3] Department of Physics, University of Alberta, Edmonton, AB

[4] Department of Physics, Ankara University, Ankara

[5] Istanbul Aydin University, Application and Research Center for Advanced Studies, Istanbul

[6] Division of Physics, TOBB University of Economics and Technology, Ankara

[7] LAPP, Univ. Savoie Mont Blanc, CNRS/IN2P3, Annecy

[8] High Energy Physics Division, Argonne National Laboratory, Argonne, IL

[9] Department of Physics, University of Arizona, Tucson, AZ

[10] Department of Physics, University of Texas at Arlington, Arlington, TX

[11] Physics Department, National and Kapodistrian University of Athens, Athens

[12] Physics Department, National Technical University of Athens, Zografou

[13] Department of Physics, University of Texas at Austin, Austin, TX

[14] Bahcesehir University, Faculty of Engineering and Natural Sciences, Istanbul

[15] Istanbul Bilgi University, Faculty of Engineering and Natural Sciences, Istanbul

[16] Department of Physics, Bogazici University, Istanbul

[17] Department of Physics Engineering, Gaziantep University, Gaziantep

[18] Institute of Physics, Azerbaijan Academy of Sciences, Baku

[19] Institut de Física d’Altes Energies (IFAE), Barcelona Institute of Science and Technology, Barcelona

[20] Institute of High Energy Physics, Chinese Academy of Sciences, Beijing

[21] Physics Department, Tsinghua University, Beijing

[22] Department of Physics, Nanjing University, Nanjing

[23] University of Chinese Academy of Science (UCAS), Beijing

[24] Institute of Physics, University of Belgrade, Belgrade

[25] Department for Physics and Technology, University of Bergen, Bergen

[26] Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, CA

[27] Institut für Physik, Humboldt Universität zu Berlin, Berlin

[28] Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern

[29] School of Physics and Astronomy, University of Birmingham, Birmingham

[30] Facultad de Ciencias y Centro de Investigaciónes, Universidad Antonio Nariño, Bogotá

[31] Departamento de Física, Universidad Nacional de Colombia, Bogotá

[32] Dipartimento di Fisica, INFN Bologna and Universita’ di Bologna, Bologna

[33] INFN Sezione di Bologna, Bologna

[34] Physikalisches Institut, Universität Bonn, Bonn

[35] Department of Physics, Boston University, Boston, MA

[36] Department of Physics, Brandeis University, Waltham, MA

[37] Transilvania University of Brasov, Brasov

[38] Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest

[39] Department of Physics, Alexandru Ioan Cuza University of Iasi, Iasi

[40] Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca

[41] University Politehnica Bucharest, Bucharest

[42] West University in Timisoara, Timisoara

[43] Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava

[44] Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice

[45] Physics Department, Brookhaven National Laboratory, Upton, NY

[46] Departamento de Física, Universidad de Buenos Aires, Buenos Aires

[47] California State University, Long Beach, CA

[48] Cavendish Laboratory, University of Cambridge, Cambridge

[49] Department of Physics, University of Cape Town, Cape Town

[50] iThemba Labs, Western Cape

来源：

Computing and Software for Big Science | 2022年 / 6卷 / 1期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1007/s41781-021-00062-2

中图分类号：

学科分类号：

摘要：

The accurate simulation of additional interactions at the ATLAS experiment for the analysis of proton–proton collisions delivered by the Large Hadron Collider presents a significant challenge to the computing resources. During the LHC Run 2 (2015–2018), there were up to 70 inelastic interactions per bunch crossing, which need to be accounted for in Monte Carlo (MC) production. In this document, a new method to account for these additional interactions in the simulation chain is described. Instead of sampling the inelastic interactions and adding their energy deposits to a hard-scatter interaction one-by-one, the inelastic interactions are presampled, independent of the hard scatter, and stored as combined events. Consequently, for each hard-scatter interaction, only one such presampled event needs to be added as part of the simulation chain. For the Run 2 simulation chain, with an average of 35 interactions per bunch crossing, this new method provides a substantial reduction in MC production CPU needs of around 20%, while reproducing the properties of the reconstructed quantities relevant for physics analyses with good accuracy. © 2022, The Author(s).

引用

共 37 条

[1]

Sjostrand T., Mrenna S., Skands P., A brief introduction to PYTHIA 8.1, Comput Phys Commun, 178, (2008)

[2]

Letter of intent for the phase-II upgrade of the ATLAS experiment, CERN-LHCC-2012-022, (2012)

[3]

Donnachie A., Landshoff P., Total cross sections, Phys Lett B, 296, (1992)

[4]

Luminosity Results for Run 2, (2019)

[5]

Gleisberg T., Et al., Event generation with SHERPA 1.1, JHEP, 2, (2009)

[6]

Agostinelli S., Et al., Geant4—a Simulation Toolkit, 506, (2003)

[7]

The ATLAS simulation infrastructure, Eur Phys J C, 70, (2010)

[8]

Lange D.J., Hildreth M., Ivantchenko V.N., Osborne I., Upgrades for the CMS simulation, J Phys Conf Ser, (2015)

[9]

Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton-proton collisions at the LHC, Eur Phys J C, 77, (2017)

[10]

Electron and photon performance measurements with the ATLAS detector using the 2015–2017 LHC proton–proton collision data, JINST, 14, (2019)

← 1 2 3 4 →