Search for pair-production of vector-like quarks in lepton plus jets final states containing at least one b-tagged jet using the Run 2 data from the ATLAS experiment

被引：2

作者：

Aad, G. ^{[162
]}

Abbott, B. ^{[183
]}

Abeling, K. ^{[85
]}

Abicht, N. J. ^{[78
]}

Abidi, S. H. ^{[47
]}

Aboulhorma, A. ^{[61
]}

Abramowicz, H. ^{[226
]}

Abreu, H. ^{[225
]}

Abulaiti, Y. ^{[180
]}

Acharya, B. S. ^{[110
,111
]}

Bourdarios, C. Adam ^{[5
]}

Adamczyk, L. ^{[141
]}

Addepalli, S. V. ^{[38
]}

Addison, M. J. ^{[161
]}

Adelman, J. ^{[177
]}

Adiguzel, A. ^{[28
,30
]}

Adye, T. ^{[202
]}

Affolder, A. A. ^{[204
]}

Afik, Y. ^{[65
]}

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

Agarwala, J. ^{[119
,120
]}

Aggarwal, A. ^{[160
]}

Agheorghiesei, C. ^{[41
]}

Ahmad, A. ^{[63
]}

Ahmadov, F. ^{[64
]}

Ahmed, W. S. ^{[164
]}

Ahuja, S. ^{[154
]}

Ai, X. ^{[99
]}

Aielli, G. ^{[125
,126
]}

Aikot, A. ^{[241
]}

Tamlihat, M. Ait ^{[61
]}

Aitbenchikh, B. ^{[58
]}

Aizenberg, I. ^{[247
]}

Akbiyik, M. ^{[160
]}

Akesson, T. P. A. ^{[157
]}

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

Akiyama, D. ^{[246
]}

Akolkar, N. N. ^{[36
]}

Aktas, S. ^{[28
]}

Al Khoury, K. ^{[67
]}

Alberghi, G. L. ^{[35
]}

Albert, J. ^{[243
]}

Albicocco, P. ^{[82
,83
]}

Albouy, G. L. ^{[91
]}

Alderweireldt, S. ^{[81
]}

Alegria, Z. L. ^{[184
]}

Aleksa, M. ^{[63
]}

Aleksandrov, I. N. ^{[64
]}

Alexa, C. ^{[40
]}

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 Mont Blanc, LAPP, CNRS, IN2P3, Annecy, France

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

[7] Argonne Natl Lab, High Energy Phys Div, 9700 S Cass Ave, Argonne, IL 60439 USA

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

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

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

[11] Natl Tech Univ Athens, Phys Dept, 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, Phys Dept, Beijing, Peoples R China

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

[18] Sun Yat Sen Univ, Sch Sci, Shenzhen Campus, Guangzhou, 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, Phys Div, 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, Lab High Energy Phys, 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] Univ Antonio Narino, Ctr Invest, Bogota, Colombia

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

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

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

[35] INFN, Sez Bologna, Bologna, Italy

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

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

[38] Brandeis Univ, Dept Phys, Waltham, MA USA

[39] Transilvania Univ Brasov, Brasov, Romania

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

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

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

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

[44] West Univ Timisoara, Timisoara, Romania

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

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

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

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

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

[50] Calif State Univ Long Beach, Long Beach, CA 90840 USA

来源：

PHYSICS LETTERS B | 2024年 / 854卷

基金：

欧洲研究理事会; 瑞典研究理事会; 中国国家自然科学基金; 欧盟地平线“2020”; 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; 瑞士国家科学基金会; 日本学术振兴会;

关键词：

PARTON DISTRIBUTIONS; PP COLLISIONS;

D O I：

10.1016/j.physletb.2024.138743

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search is presented for the pair-production of heavy vector-like quarks in the lepton+jets final state using 140 fb(-1) of proton-proton collisions at root s = 13 TeV collected with the ATLAS detector. The search is optimised for vector-like top-quarks (T) that decay into a W boson and a b-quark, with one W boson decaying leptonically and the other hadronically. Other vector-like quark flavours and decay modes are also considered. Events are selected with one high transverse-momentum electron or muon, large missing transverse momentum, a large-radius jet identified as a W boson, and multiple small-radius jets, at least one of which is b-tagged. Vector-like T-quarks with 100% branching ratio to Wb are excluded at 95% CL for masses below 1700 GeV. These limits are also applied to vector-like Y-quarks, which decay exclusively into a W boson and a b-quark. Isospin singlets with B(T -> Wb: Ht: Zt ) = 1/2 : 1/4 : 1/4 are excluded for masses below 1360 GeV.

引用

页数：28

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