Search for t(t)over-bar resonances in fully hadronic final states in pp collisions at √s=13 TeV with the ATLAS detector

被引：0

作者：

Aad, G. ^{[158
]}

Abbott, B. ^{[189
]}

Abbott, D. C. ^{[159
]}

Abud, A. ^{[256
,257
]}

Abeling, K. ^{[80
]}

Abhayasinghe, D. K. ^{[149
]}

Abidi, S. H. ^{[236
]}

AbouZeid, O. S. ^{[63
]}

Abraham, N. L. ^{[223
]}

Abramowicz, H. ^{[229
]}

Abreu, H. ^{[228
]}

Abulaiti, Y. ^{[8
]}

Acharya, B. S. ^{[256
,257
,269
]}

Achkar, B. ^{[80
]}

Adachi, S. ^{[231
,232
]}

Adam, L. ^{[156
]}

Bourdarios, Adam C. ^{[7
]}

Adamczyk, L. ^{[135
,256
]}

Adamek, L. ^{[236
]}

Adelman, J. ^{[179
]}

Adersberger, M. ^{[170
]}

Adiguzel, A. ^{[258
]}

Adorni, S. ^{[81
]}

Adye, T. ^{[209
]}

Affolder, A. A. ^{[211
]}

Afik, Y. ^{[228
]}

Agapopoulou, C. ^{[102
]}

Agaras, M. N. ^{[61
]}

Aggarwal, A. ^{[176
]}

Agheorghiesei, C. ^{[258
]}

Aguilar-Saavedra, J. A. ^{[200
,205
,289
]}

Ahmadov, F. ^{[128
]}

Ahmed, W. S. ^{[160
]}

Ai, X. ^{[26
,27
]}

Aielli, G. ^{[256
,257
]}

Akatsuka, S. ^{[138
]}

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

Akilli, E. ^{[81
]}

Akimov, A. V. ^{[167
]}

Al Khoury, K. ^{[102
]}

Alberghi, G. L. ^{[34
,35
,256
,257
]}

Albert, J. ^{[247
]}

Alconada Verzini, M. J. ^{[229
]}

Alderweireldt, S. ^{[59
]}

Aleksa, M. ^{[59
]}

Aleksandrov, I. N. ^{[128
]}

Alexa, C. ^{[257
]}

Alexandre, D. ^{[28
]}

Alexopoulos, T. ^{[12
]}

Alfonsi, A. ^{[177
,178
]}

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, CNRS, IN2P3, LAPP, 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, Dept Phys, Athens, Greece

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

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

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

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

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

[26] Lawrence Berkeley Natl Lab, Div Phys, 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, High Energy Phys Lab, Bern, Switzerland

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

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

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

[34] INFN Bologna, Bologna, Italy

[35] Univ Bologna, Bologna, Italy

[36] INFN, Sez Bologna, Dipartimento Fis, Bologna, Italy

[37] Univ Bonn, Inst Phys, 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] Natl Inst Res & Dev Isotop & Mol Technol, Dept Phys, Cluj Napoca, 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, Dept Fis, Buenos Aires, DF, Argentina

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

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

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 10期

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;

关键词：

Jet substructure; Beyond Standard Model; Hadron-Hadron scattering (experiments); Heavy quark production; Jets; PARTON DISTRIBUTIONS; PAIR PRODUCTION; ALGORITHM;

D O I：

10.1007/JHEP10(2020)061

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：

This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb(-1) of proton-proton collision data recorded at a centre-of-mass energy of root s = 13TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair production of high-transverse-momentum top quarks and their subsequent decays into the fully hadronic final states. The analysis is optimized for resonances decaying into a t (t) over bar pair with mass above 1.4TeV, exploiting a dedicated multivariate technique with jet substructure to identify hadronically decaying top quarks using large-radius jets and evaluating the background expectation from data. No significant deviation from the background prediction is observed. Limits are set on the production cross-section times branching fraction for the new Z' boson in a topcolor-assisted-technicolor model. The Z0 boson masses below 3.9 and 4.7TeV are excluded at 95% confidence level for the decay widths of 1% and 3%, respectively.

引用

页数：43

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Abbott, D. C. ;

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Abeling, K. ;

Abhayasinghe, D. K. ;

Abidi, S. H. ;

AbouZeid, O. S. ;

Abraham, N. L. ;

Abramowicz, H. ;

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Adorni, S. ;

Adye, T. ;

Affolder, A. A. ;

Afik, Y. ;

Agapopoulou, C. ;

Agaras, M. N. ;

Aggarwal, A. ;

Agheorghiesei, C. ;

Aguilar-Saavedra, J. 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. ;

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Akesson, T. P. ;

Akimov, A. V. ;

Alberghi, G. L. ;

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Alconada Verzini, M. J. ;

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