Measurement of electroweak Z(v (v)over-bar)γ jj production and limits on anomalous quartic gauge couplings in pp collisions at √s=13 TeV with the ATLAS detector

被引：0

作者：

Aad, G. ^{[157
]}

Abbott, B. ^{[178
]}

Abbott, D. C. ^{[158
]}

Abeling, K. ^{[82
]}

Abidi, S. H. ^{[46
]}

Aboulhorma, A. ^{[60
]}

Abramowicz, H. ^{[224
]}

Abreu, H. ^{[223
]}

Abulaiti, Y. ^{[175
]}

Abusleme Hoffman, A. C. ^{[201
]}

Acharya, B. S. ^{[105
,106
,259
]}

Achkar, B. ^{[82
]}

Adam, L. ^{[155
]}

Adam Bourdarios, C. ^{[5
]}

Adamczyk, L. ^{[135
]}

Adamek, L. ^{[229
]}

Addepalli, S. V. ^{[37
]}

Adelman, J. ^{[172
]}

Adiguzel, A. ^{[28
]}

Adorni, S. ^{[83
]}

Adye, T. ^{[198
]}

Affolder, A. A. ^{[200
]}

Afik, Y. ^{[61
]}

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

Agarwala, J. ^{[114
,115
]}

Aggarwal, A. ^{[155
]}

Agheorghiesei, C. ^{[40
]}

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

Ahmad, A. ^{[61
]}

Ahmadov, F. ^{[13
,61
,267
]}

Ahmed, W. S. ^{[159
]}

Ai, X. ^{[73
,74
]}

Aielli, G. ^{[120
,121
]}

Aizenberg, I. ^{[244
]}

Akbiyik, M. ^{[155
]}

Akesson, T. P. A. ^{[152
]}

Akimov, A. V. ^{[61
]}

Al Khoury, K. ^{[64
]}

Alberghi, G. L. ^{[34
]}

Albert, J. ^{[240
]}

Albicocco, P. ^{[79
,80
]}

Alconada Verzini, M. J. ^{[142
,143
]}

Alderweireldt, S. ^{[78
]}

Aleksa, M. ^{[61
]}

Aleksandrov, I. N. ^{[61
]}

Alexa, C. ^{[39
]}

Alexopoulos, T. ^{[11
]}

Alfonsi, A. ^{[170
,171
]}

Alfonsi, F. ^{[34
]}

Alhroob, M. ^{[178
]}

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, 9700 S Cass Ave, Argonne, IL 60439 USA

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

[9] Univ Texas Arlington, Dept Phys, POB 19059, 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] Univ Chinese Acad Sci UCAS, Beijing, Peoples R China

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

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

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

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

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

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

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

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

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

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

[29] Istinye Univ, Istanbul, Turkiye

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

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

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

[33] Univ Bologna, Dipartimento Fis & Astron A Righi, 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, Dept Phys, Cluj Napoca, Romania

[42] Univ Politehn Bucuresti, Bucharest, Romania

[43] West Univ Timisoara, Timisoara, Romania

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

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

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

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

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

[49] Calif State Univ Fresno, Fresno, CA 93740 USA

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 06期

基金：

巴西圣保罗研究基金会; 加拿大自然科学与工程研究理事会;

关键词：

Electroweak Interaction; Hadron-Hadron Scattering; JETS;

D O I：

10.1007/JHEP06(2023)082

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：

The electroweak production of Z(v (v) over bar)gamma in association with two jets is studied in a regime with a photon of high transverse momentum above 150 GeV using proton-proton collisions at a centre-of-mass energy of 13TeV at the Large Hadron Collider. The analysis uses a data sample with an integrated luminosity of 139 fb(-1) collected by the ATLAS detector during the 2015-2018 LHC data-taking period. This process is an important probe of the electroweak symmetry breaking mechanism in the Standard Model and is sensitive to quartic gauge boson couplings via vector-boson scattering. The fiducial Z( v (v) over bar)gamma jj cross section for electroweak production is measured to be 0.77(-0.30)(+0.34) fb and is consistent with the Standard Model prediction. Evidence of electroweak Z( v (v) over bar)gamma jj production is found with an observed significance of 3.2 sigma for the background-only hypothesis, compared with an expected significance of 3.7 sigma. The combination of this result with the previously published ATLAS observation of electroweak Z(v (v) over bar)gamma jj production yields an observed (expected) signal significance of 6.3 sigma (6.6 sigma). Limits on anomalous quartic gauge boson couplings are obtained in the framework of effective field theory with dimension-8 operators.

引用

页数：48

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