Fiducial and differential cross-section measurements of electroweak Wγjj production in pp collisions at √s=13 TeV with the ATLAS detector

被引：0

作者：

Aad, G. ^{[163
]}

Aakvaag, E. ^{[22
]}

Abbott, B. ^{[184
]}

Abeling, K. ^{[84
]}

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

Abidi, S. H. ^{[49
]}

Aboelela, M. ^{[70
]}

Aboulhorma, A. ^{[62
]}

Abramowicz, H. ^{[229
]}

Abreu, H. ^{[228
]}

Abulaiti, Y. ^{[181
]}

Acharya, B. S. ^{[109
,110
,262
]}

Ackermann, A. ^{[99
]}

Bourdarios, C. Adam ^{[6
]}

Adamczyk, L. ^{[141
]}

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

Addison, M. J. ^{[162
]}

Adelman, J. ^{[178
]}

Adiguzel, A. ^{[31
]}

Adye, T. ^{[203
]}

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

Afik, Y. ^{[64
]}

Agaras, M. N. ^{[15
]}

Agarwala, J. ^{[118
,119
]}

Aggarwal, A. ^{[161
]}

Agheorghiesei, C. ^{[42
]}

Ahmad, A. ^{[1
]}

Ahmadov, F. ^{[1
,14
]}

Ahmed, W. S. ^{[165
]}

Ahuja, S. ^{[155
]}

Ai, X. ^{[98
]}

Aielli, G. ^{[124
,125
]}

Aikot, A. ^{[244
]}

Tamlihat, M. Ait ^{[62
]}

Aitbenchikh, B. ^{[59
]}

Aizenberg, I. ^{[250
]}

Akbiyik, M. ^{[161
]}

Akesson, T. P. A. ^{[158
]}

Akimov, A. V. ^{[1
]}

Akiyama, D. ^{[249
]}

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

Aktas, S. ^{[29
]}

Al Khoury, K. ^{[66
]}

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

Albert, J. ^{[246
]}

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

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

Alderweireldt, S. ^{[80
]}

Alegria, Z. L. ^{[185
]}

Aleksa, M. ^{[1
]}

机构：

[1] CERN, CH-1211 Geneva 23, Switzerland

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

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

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

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

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

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

[8] Argonne Natl Lab, High Energy Phys Div, 9700 S Cass Ave, 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] Azerbaijan Acad Sci, Inst Phys, Baku, Azerbaijan

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

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

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

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

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

[20] Univ Chinese Acad Sci, Beijing, Peoples R China

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

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

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

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

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

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

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

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

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

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

[31] Istanbul Univ, Dept Phys, 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, 590 Commonwealth Ave, 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, Phys Dept, Cluj Napoca, Romania

[44] Natl Univ Sci & Technol Politech, Bucharest, Romania

[45] West Univ Timisoara, Timisoara, Romania

[46] Univ Bucharest, Fac Phys, Bucharest, Romania

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

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

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

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

来源：

EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 10期

基金：

加拿大自然科学与工程研究理事会; 日本学术振兴会; 中国国家自然科学基金; 巴西圣保罗研究基金会; 欧洲研究理事会; 瑞典研究理事会;

关键词：

Compendex;

D O I：

10.1140/epjc/s10052-024-13311-6

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 observation of the electroweak production of a W boson and a photon in association with two jets, using pp collision data at the Large Hadron Collider at a centre of mass energy of root s =13 TeV, is reported. The data were recorded by the ATLAS experiment from 2015 to 2018 and correspond to an integrated luminosity of 140 fb(-1). This process is sensitive to the quartic gauge boson couplings via the vector boson scattering mechanism and provides a stringent test of the electroweak sector of the Standard Model. Events are selected if they contain one electron or muon, missing transverse momentum, at least one photon, and two jets. Multivariate techniques are used to distinguish the electroweak W gamma jj process from irreducible background processes. The observed significance of the electroweak W gamma jj process is well above six standard deviations, compared to an expected significance of 6.3 standard deviations. Fiducial and differential cross sections are measured in a fiducial phase space close to the detector acceptance, which are in reasonable agreement with leading order Standard Model predictions from MadGraph5+Pythia8 and Sherpa. The results are used to constrain new physics effects in the context of an effective field theory.

引用

页数：34

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