Measurement of the cross-sections of the electroweak and total production of a Zγ pair in association with two jets in pp collisions at √s=13 TeV with the ATLAS detector

被引：2

作者：

Aad, G. ^{[160
]}

Abbott, B. ^{[181
]}

Abeling, K. ^{[84
]}

Abicht, N. J. ^{[77
]}

Abidi, S. H. ^{[48
]}

Aboulhorma, A. ^{[61
]}

Abramowicz, H. ^{[226
]}

Abreu, H. ^{[225
]}

Abulaiti, Y. ^{[178
]}

Abusleme Hoffman, A. C. ^{[203
]}

Acharya, B. S. ^{[108
,109
,261
]}

Adam Bourdarios, C. ^{[5
]}

Adamczyk, L. ^{[138
]}

Adamek, L. ^{[231
]}

Addepalli, S. V. ^{[39
]}

Addison, M. J. ^{[159
]}

Adelman, J. ^{[175
]}

Adiguzel, A. ^{[30
]}

Adye, T. ^{[200
]}

Affolder, A. A. ^{[202
]}

Afik, Y. ^{[63
]}

Agaras, M. N. ^{[14
]}

Agarwala, J. ^{[117
,118
]}

Aggarwal, A. ^{[158
]}

Agheorghiesei, C. ^{[42
]}

Ahmad, A. ^{[63
]}

Ahmadov, F. ^{[13
,63
]}

Ahmed, W. S. ^{[162
]}

Ahuja, S. ^{[152
]}

Ai, X. ^{[92
,93
]}

Aielli, G. ^{[123
,124
]}

Aikot, A. ^{[241
]}

Tamlihat, M. Ait ^{[61
]}

Aitbenchikh, B. ^{[58
]}

Aizenberg, I. ^{[247
]}

Akbiyik, M. ^{[158
]}

Akesson, T. P. A. ^{[155
]}

Akimov, A. V. ^{[63
]}

Akiyama, D. ^{[246
]}

Akolkar, N. N. ^{[37
]}

Al Khoury, K. ^{[66
]}

Alberghi, G. L. ^{[36
]}

Albert, J. ^{[243
]}

Albicocco, P. ^{[81
,82
]}

Albouy, G. L. ^{[90
]}

Alderweireldt, S. ^{[80
]}

Aleksa, M. ^{[63
]}

Aleksandrov, I. N. ^{[63
]}

Alexa, C. ^{[41
]}

Alexopoulos, T. ^{[11
]}

机构：

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

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

[3] Ankara Univ, Dept Phys, Ankara, Turkiye

[4] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkiye

[5] Univ Savoie Mt Blanc, LAPP, CNRS, IN2P3, Annecy, France

[6] Univ Paris Cite, APC, CNRS, IN2P3, Paris, France

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

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

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

[10] Natl & Kapodistrian Univ Athens, Dept Phys, Athens, Greece

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

[12] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

[13] Azerbaijan Acad Sci, Inst Phys, Baku, Azerbaijan

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

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

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

[17] Nanjing Univ, Dept Phys, Nanjing, Peoples R China

[18] Shenzhen Campus Sun Yat Sen Univ, Sch Sci, Shenzhen, Peoples R China

[19] Univ Chinese Acad Sci UCAS, Beijing, Peoples R China

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

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

[22] Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA USA

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

[24] Humboldt Univ, Inst Phys, Berlin, Germany

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

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

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

[28] Bogazici Univ, Dept Phys, Istanbul, Turkiye

[29] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkiye

[30] Istanbul Univ, Dept Phys, Istanbul, Turkiye

[31] Istinye Univ, Istanbul, Turkiye

[32] Univ Antonio Narino, Fac Ciencias, Bogota, Colombia

[33] Univ Antonio Narino, Ctr Invest, Bogota, Colombia

[34] Univ Nacl Colombia, Dept Fis, Bogota, Colombia

[35] Univ Bologna, Dipartimento Fis & Astron A Righi, Bologna, Italy

[36] INFN Sez Bologna, Bologna, Italy

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

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

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

[40] Transilvania Univ Brasov, Brasov, Romania

[41] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[42] Alexandru Ioan Cuza Univ, Dept Phys, Iasi, Romania

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

[44] Univ Politehn Bucuresti, Bucharest, Romania

[45] West Univ Timisoara, Timisoara, Romania

[46] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia

[47] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice, Slovakia

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

[49] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, Buenos Aires, DF, Argentina

[50] Univ Buenos Aires, CONICET, Inst Fis Buenos Aires IFIBA, Buenos Aires, DF, Argentina

来源：

PHYSICS LETTERS B | 2023年 / 846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; 英国科学技术设施理事会; 欧盟地平线“2020”;

关键词：

D O I：

10.1016/j.physletb.2023.138222

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This Letter presents the measurement of the fiducial and differential cross-sections of the electroweak production of a Z gamma pair in association with two jets. The analysis uses 140 fb(-1)of LHC proton-proton collision data taken at root s=13 TeV recorded by the ATLAS detector during the years 2015-2018. Events with a Zboson candidate decaying into either an e(+) e(-) or mu(+) mu(-) pair, a photon and two jets are selected. The electroweak component is extracted by requiring a large dijet invariant mass and by using the information about the centrality of the system and is measured with an observed and expected significance well above five standard deviations. The fiducial pp -> Z gamma jj cross-section for the electroweak production is measured to be 3.6 +/- 0.5fb. The total fiducial cross-section that also includes contributions where the jets arise from strong interactions is measured to be 16.8(-1.8)(+2.0) fb. The results are consistent with the Standard Model predictions. Differential cross-sections are also measured using the same events and are compared with parton-shower Monte Carlo simulations. Good agreement is observed between data and predictions. (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

引用

页数：30

共 52 条

[1] Performance of electron and photon triggers in ATLAS during LHC Run 2 [J].

Aaboud, M. ;

Aad, G. ;

Abbott, B. ;

Abdinov, O. ;

Abeloos, B. ;

Abhayasinghe, D. K. ;

Abidi, S. H. ;

AbouZeid, O. S. ;

Abraham, N. L. ;

Abramowicz, H. ;

Abreu, H. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adachi, S. ;

Adamczyk, L. ;

Adelman, J. ;

Adersberger, M. ;

Adiguzel, A. ;

Adye, T. ;

Affolder, A. A. ;

Afik, Y. ;

Agheorghiesei, C. ;

Aguilar-Saavedra, J. A. ;

Ahmadov, F. ;

Aielli, G. ;

Akatsuka, S. ;

Akesson, T. P. A. ;

Akilli, E. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Albicocco, P. ;

Verzini, M. J. Alconada ;

Alderweireldt, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexopoulos, T. ;

Alhroob, M. ;

Ali, B. ;

Alimonti, G. ;

Alison, J. ;

Alkire, S. P. ;

Allaire, C. ;

Allbrooke, B. M. M. ;

Allen, B. W. ;

Allport, P. P. ;

Aloisio, A. ;

Alonso, A. ;

Alonso, F. .

EUROPEAN PHYSICAL JOURNAL C, 2020, 80 (01)

[2]

Aaboud M, 2019, EUR PHYS J C, V79, DOI 10.1140/epjc/s10052-019-7140-6

[3]

Aaboud M, 2019, EUR PHYS J C, V79, DOI 10.1140/epjc/s10052-019-6849-6

[4] Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run 2 data collected in 2015 and 2016 [J].

Aaboud, M. ;

Aad, G. ;

Abbott, B. ;

Abdinov, O. ;

Abeloos, B. ;

Abhayasinghe, D. K. ;

Abidi, S. H. ;

AbouZeid, O. S. ;

Abraham, N. L. ;

Abramowicz, H. ;

Abreu, H. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adachi, S. ;

Adamczyk, L. ;

Adelman, J. ;

Adersberger, M. ;

Adiguzel, A. ;

Adye, T. ;

Affolder, A. A. ;

Afik, Y. ;

Agheorghiesei, C. ;

Aguilar-Saavedra, J. A. ;

Ahmadov, F. ;

Aielli, G. ;

Akatsuka, S. ;

Akesson, T. P. A. ;

Akilli, E. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Albicocco, P. ;

Alconada Verzini, M. J. ;

Alderweireldt, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexopoulos, T. ;

Alhroob, M. ;

Ali, B. ;

Alimonti, G. ;

Alison, J. ;

Alkire, S. P. ;

Allaire, C. ;

Allbrooke, B. M. M. ;

Allen, B. W. ;

Allport, P. P. ;

Aloisio, A. ;

Alonso, A. ;

Alonso, F. .

EUROPEAN PHYSICAL JOURNAL C, 2019, 79 (03)

[5]

Aaboud M, 2017, J HIGH ENERGY PHYS, DOI 10.1007/JHEP07(2017)107

[6] Jet reconstruction and performance using particle flow with the ATLAS Detector [J].

Aaboudd, M. ;

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Abdinov, O. ;

Abeloos, B. ;

Abidi, S. H. ;

AbouZeid, O. S. ;

Abraham, N. L. ;

Abramowicz, H. ;

Abreu, H. ;

Abreu, R. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adachi, S. ;

Adamczyk, L. ;

Adelman, J. ;

Adersberger, M. ;

Adye, T. ;

Affolder, A. A. ;

Agatonovic-Jovin, T. ;

Agheorghiesei, C. ;

Aguilar-Saavedra, J. A. ;

Ahlen, S. P. ;

Ahmadov, F. ;

Aielli, G. ;

Akatsuka, S. ;

Akerstedt, H. ;

Akesson, T. P. A. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Alconada Verzini, M. J. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexander, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Ali, B. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Alkire, S. P. ;

Allbrooke, B. M. M. ;

Allen, B. W. ;

Allport, P. P. ;

Aloisio, A. ;

Alonso, A. ;

Alonso, F. .

EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (07)

[7]

Aad G, 2023, J HIGH ENERGY PHYS, DOI 10.1007/JHEP07(2023)072

[8]

Aad G, 2021, EUR PHYS J C, V81, DOI 10.1140/epjc/s10052-021-09233-2

[9] Performance of the ATLAS muon triggers in Run 2 [J].

Aad, G. ;

Abbott, B. ;

Abbott, D. C. ;

Abud, A. Abed ;

Abeling, K. ;

Abhayasinghe, D. K. ;

Abidi, S. H. ;

AbouZeid, O. S. ;

Abraham, N. L. ;

Abramowicz, H. ;

Abreu, H. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Achkar, B. ;

Adam, L. ;

Bourdarios, C. Adam ;

Adamczyk, L. ;

Adamek, L. ;

Adelman, J. ;

Adersberger, M. ;

Adiguzel, A. ;

Adorni, S. ;

Adye, T. ;

Affolder, A. A. ;

Afik, Y. ;

Agapopoulou, C. ;

Agaras, M. N. ;

Aggarwal, A. ;

Agheorghiesei, C. ;

Aguilar-Saavedra, J. A. ;

Ahmad, A. ;

Ahmadov, F. ;

Ahmed, W. S. ;

Ai, X. ;

Aielli, G. ;

Akatsuka, S. ;

Akesson, T. P. A. ;

Akilli, E. ;

Akimov, A., V ;

Al Khoury, K. ;

Alberghi, G. L. ;

Albert, J. ;

Verzini, M. J. Alconada ;

Alderweireldt, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexopoulos, T. ;

Alfonsi, A. ;

Alfonsi, F. .

JOURNAL OF INSTRUMENTATION, 2020, 15 (09)

[10] Operation of the ATLAS trigger system in Run 2 [J].

Aad, G. ;

Abbott, B. ;

Abbott, D. C. ;

Abud, A. Abed ;

Abeling, K. ;

Abhayasinghe, D. K. ;

Abidi, S. H. ;

AbouZeid, O. S. ;

Abraham, N. L. ;

Abramowicz, H. ;

Abreu, H. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Achkar, B. ;

Adam, L. ;

Bourdarios, C. Adam ;

Adamczyk, L. ;

Adamek, L. ;

Adelman, J. ;

Adersberger, M. ;

Adiguzel, A. ;

Adorni, S. ;

Adye, T. ;

Affolder, A. A. ;

Afik, Y. ;

Agapopoulou, C. ;

Agaras, M. N. ;

Aggarwal, A. ;

Agheorghiesei, C. ;

Aguilar-Saavedra, J. A. ;

Ahmad, A. ;

Ahmadov, F. ;

Ahmed, W. S. ;

Ai, X. ;

Aielli, G. ;

Akatsuka, S. ;

Akesson, T. P. A. ;

Akilli, E. ;

Akimov, A., V ;

Al Khoury, K. ;

Alberghi, G. L. ;

Albert, J. ;

Verzini, M. J. Alconada ;

Alderweireldt, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexopoulos, T. ;

Alfonsi, A. ;

Alfonsi, F. .

JOURNAL OF INSTRUMENTATION, 2020, 15 (10)

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