Search for decays of the Higgs boson into a pair of pseudoscalar particles decaying into b(b)over-barτ+τ- using pp collisions at √s=13 TeV with the ATLAS detector

被引:0
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作者
Aad, G. [161 ]
Aakvaag, E. [18 ]
Abbott, B. [185 ]
Abdelhameed, S. [180 ]
Abeling, K. [82 ]
Abicht, N. J. [75 ]
Abidi, S. H. [45 ]
Aboelela, M. [68 ]
Aboulhorma, A. [59 ]
Abramowicz, H. [231 ]
Abreu, H. [230 ]
Abulaiti, Y. [182 ]
Acharya, B. S. [107 ,108 ,263 ]
Ackermann, A. [97 ]
Bourdarios, C. Adam [5 ]
Adamczyk, L. [139 ]
Addepalli, S. V. [35 ]
Addison, M. J. [160 ]
Adelman, J. [179 ]
Adiguzel, A. [27 ]
Adye, T. [204 ]
Affolder, A. A. [206 ]
Afik, Y. [62 ]
Agaras, M. N. [14 ]
Agarwala, J. [116 ,117 ]
Aggarwal, A. [159 ]
Agheorghiesei, C. [38 ]
Ahmadov, F. [13 ,61 ]
Ahmed, W. S. [163 ]
Ahuja, S. [153 ]
Ai, X. [96 ]
Aielli, G. [122 ,123 ]
Aikot, A. [245 ]
Tamlihat, M. Ait [59 ]
Aitbenchikh, B. [55 ]
Akbiyik, M. [159 ]
Akesson, T. P. A. [156 ]
Akimov, A. V. [61 ]
Akiyama, D. [250 ]
Akolkar, N. N. [33 ]
Aktas, S. [25 ]
Al Khoury, K. [64 ]
Alberghi, G. L. [32 ]
Albert, J. [247 ]
Albicocco, P. [79 ,80 ]
Albouy, G. L. [88 ]
Alderweireldt, S. [78 ]
Alegria, Z. L. [186 ]
Aleksa, M. [61 ]
Aleksandrov, I. N. [61 ]
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, CNRS, LAPP, 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 85721 USA
[9] Univ Texas Arlington, Dept Phys, POB 19059, 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] Univ Belgrade, Inst Phys, Belgrade, Serbia
[18] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[19] Lawrence Berkeley Natl Lab, Phys Div, Berkeley, CA 94720 USA
[20] Univ Calif Berkeley, Berkeley, CA 94720 USA
[21] Humboldt Univ, Inst Phys, Berlin, Germany
[22] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland
[23] Univ Bern, Lab High Energy Phys, Bern, Switzerland
[24] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[25] Bogazici Univ, Dept Phys, Istanbul, Turkiye
[26] Gaziantep Univ, Dept Phys Engn, Gaziantep, Turkiye
[27] Istanbul Univ, Dept Phys, Istanbul, Turkiye
[28] Univ Antonio Narino, Fac Ciencias, Bogota, Colombia
[29] Univ Antonio Narino, Ctr Invest, Bogota, Colombia
[30] Univ Nacl Colombia, Dept Fis, Bogota, Colombia
[31] Univ Bologna, Dipartimento Fis & Astron A Righi, Bologna, Italy
[32] INFN, Sez Bologna, Bologna, Italy
[33] Univ Bonn, Phys Inst, Bonn, Germany
[34] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
[35] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA
[36] Transilvania Univ Brasov, Brasov, Romania
[37] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
[38] Alexandru Ioan Cuza Univ, Dept Phys, Iasi, Romania
[39] Natl Inst Res & Dev Isotop & Mol Technol, Phys Dept, Cluj Napoca, Romania
[40] Natl Univ Sci & Technol Politech, Bucharest, Romania
[41] West Univ Timisoara, Timisoara, Romania
[42] Univ Bucharest, Fac Phys, Bucharest, Romania
[43] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia
[44] Slovak Acad Sci, Inst Expt Phys, Dept Subnucl Phys, Kosice, Slovakia
[45] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA
[46] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, Buenos Aires, DF, Argentina
[47] Consejo Nacl Invest Cient & Tecn, Inst Fis Buenos Aires IFIBA, Buenos Aires, DF, Argentina
[48] Calif State Univ Long Beach, Long Beach, CA 90840 USA
[49] Univ Cambridge, Cavendish Lab, Cambridge, England
[50] Univ Cape Town, Dept Phys, Cape Town, South Africa
基金
欧洲研究理事会; 瑞士国家科学基金会; 加拿大自然科学与工程研究理事会; 日本学术振兴会; 瑞典研究理事会; 巴西圣保罗研究基金会; 中国国家自然科学基金;
关键词
LEADING ORDER QCD;
D O I
10.1103/PhysRevD.110.052013
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
This paper presents a search for exotic decays of the Higgs boson into a pair of new pseudoscalar particles, H -> aa, where one pseudoscalar decays into a b-quark pair and the other decays into a tau-lepton pair, in the mass range 12 <= m(a) <= 60 GeV. The analysis uses pp collision data at root s = 13 TeV collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 140 fb(-1). No significant excess above the Standard Model ( SM) prediction is observed. Assuming the SM Higgs boson production cross section, the search sets upper limits at 95% confidence level on the branching ratio of Higgs bosons decaying into b (b) over bar tau(+)tau(-), B(H -> aa -> b (b) over bar tau(+)tau(-)), between 2.2% and 3.9% depending on the pseudoscalar mass.
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