Differential cross-section measurements for the electroweak production of dijets in association with a Z boson in proton-proton collisions at ATLAS

被引：34

作者：

Aaboud, M. ^{[53
,54
]}

Aad, G. ^{[152
]}

Abbott, B. ^{[182
]}

Abdinov, O. ^{[18
]}

Abeloos, B. ^{[186
]}

Abhayasinghe, D. K. ^{[143
]}

Abidi, S. H. ^{[231
]}

AbouZeid, O. S. ^{[60
]}

Abraham, N. L. ^{[218
]}

Abramowicz, H. ^{[224
]}

Abreu, H. ^{[223
]}

Abulaiti, Y. ^{[8
]}

Acharya, B. S. ^{[99
,100
,260
]}

Adachi, S. ^{[24
]}

Adamczyk, L. ^{[129
]}

Adelman, J. ^{[174
]}

Adersberger, M. ^{[165
]}

Adiguzel, A. ^{[16
,76
,99
,118
,175
,176
,189
,237
,240
,272
]}

Adye, T. ^{[203
]}

Affolder, A. A. ^{[205
]}

Afik, Y. ^{[223
]}

Agheorghiesei, C. ^{[40
]}

Aguilar-Saavedra, J. A. ^{[194
,199
,271
]}

Ahmadov, F. ^{[18
,123
]}

Aielli, G. ^{[114
,115
]}

Akatsuka, S. ^{[132
]}

Akesson, T. P. A. ^{[146
]}

Akilli, E. ^{[77
]}

Akimov, A. V. ^{[161
]}

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

Albert, J. ^{[242
]}

Albicocco, P. ^{[73
,74
]}

Verzini, M. J. Alconada ^{[136
,137
]}

Alderweireldt, S. ^{[171
]}

Aleksa, M. ^{[56
]}

Aleksandrov, I. N. ^{[123
]}

Alexa, C. ^{[39
]}

Alexopoulos, T. ^{[12
]}

Alhroob, M. ^{[182
]}

Ali, B. ^{[201
]}

Alimonti, G. ^{[104
]}

Alison, J. ^{[57
]}

Alkire, S. P. ^{[209
]}

Allaire, C. ^{[186
]}

Allbrooke, B. M. M. ^{[218
]}

Allen, B. W. ^{[185
]}

Allport, P. P. ^{[31
]}

Aloisio, A. ^{[106
,107
]}

Alonso, A. ^{[60
]}

Alonso, F. ^{[136
,137
]}

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, Ankara, Turkey

[5] Istanbul Aydin Univ, Istanbul, Turkey

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

[7] Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, LAPP,IN2P3, Annecy, France

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

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

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

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

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

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

[14] Bahcesehir Univ, Fac Engn & Nat Sci, Istanbul, Turkey

[15] Istanbul Bilgi Univ, Fac Engn & Nat Sci, Istanbul, Turkey

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

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

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

[19] Barcelona Inst Sci & Technol, IFAE, Barcelona, Spain

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

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

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

[23] UCAS, Beijing, Peoples R China

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

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

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

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

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

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

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

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

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

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

[34] INFN, Sez Bologna, Bologna, Italy

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

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

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

[38] Transilvania Univ Brasov, Brasov, Romania

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

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

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

[42] West Univ Timisoara, Timisoara, Romania

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

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

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

[46] Univ Cambridge, Cavendish Lab, Cambridge, England

[47] Univ Cape Town, Dept Phys, Cape Town, South Africa

[48] Univ Johannesburg, Dept Mech Engn Sci, Johannesburg, South Africa

[49] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa

[50] Carleton Univ, Dept Phys, Ottawa, ON, Canada

来源：

EUROPEAN PHYSICAL JOURNAL C | 2021年 / 81卷 / 02期

基金：

英国科学技术设施理事会; 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”;

关键词：

ROOT-S=13 TEV; PP COLLISIONS; SEARCH; DECAYS; FUSION;

D O I：

10.1140/epjc/s10052-020-08734-w

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Differential cross-sectionmeasurements are presented for the electroweak production of two jets in association with a Z boson. These measurements are sensitive to the vector-boson fusion production mechanism and provide a fundamental test of the gauge structure of the Standard Model. The analysis is performed using proton-proton collision data collected by ATLAS at root s = 13 TeV and with an integrated luminosity of 139 fb(-1). The differential cross-sections are measured in the Z -> l(+)l(-) decay channel (l = e, mu) as a function of four observables: the dijet invariant mass, the rapidity interval spanned by the two jets, the signed azimuthal angle between the two jets, and the transverse momentum of the dilepton pair. The data are corrected for the effects of detector inefficiency and resolution and are sufficiently precise to distinguish between different state-of-the-art theoretical predictions calculated using Powheg+Pythia8, Herwig7+Vbfnlo and Sherpa 2.2. The differential cross-sections are used to search for anomalous weak-boson self-interactions using a dimension-six effective field theory. Themeasurement of the signed azimuthal angle between the two jets is found to be particularly sensitive to the interference between the Standard-Model and dimension-six scattering amplitudes and provides a direct test of charge-conjugation and parity invariance in the weak-boson self-interactions.

引用

页数：42

共 88 条

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