Search for invisible Higgs-boson decays in events with vector-boson fusion signatures using 139 fb-1 of proton-proton data recorded by the ATLAS experiment

被引:50
作者
Aad, G. [158 ]
Abbott, B. [189 ]
Abbott, D. C. [159 ]
Abud, A. Abed [62 ]
Abeling, K. [83 ]
Abhayasinghe, D. K. [150 ]
Abidi, S. H. [47 ]
Aboulhorma, A. [61 ]
Abramowicz, H. [235 ]
Abreu, H. [234 ]
Abulaiti, Y. [186 ]
Abusleme Hoffman, A. C. [213 ]
Acharya, B. S. [106 ,107 ,271 ]
Achkar, B. [83 ]
Adam, L. [156 ]
Bourdarios, C. Adam [5 ]
Adamczyk, L. [136 ]
Adamek, L. [241 ]
Addepalli, S., V [38 ]
Adelman, J. [178 ]
Adiguzel, A. [29 ]
Adorni, S. [84 ]
Adye, T. [210 ]
Affolder, A. A. [212 ]
Afik, Y. [62 ]
Agaras, M. N. [14 ]
Agarwala, J. [115 ,116 ]
Aggarwal, A. [156 ]
Agheorghiesei, C. [41 ]
Aguilar-Saavedra, J. A. [200 ,205 ,280 ]
Ahmad, A. [62 ]
Ahmadov, F. [13 ,130 ]
Ahmed, W. S. [160 ]
Ai, X. [74 ,75 ]
Aielli, G. [121 ,122 ]
Aizenberg, I [256 ]
Akbiyik, M. [156 ]
Akesson, T. P. A. [153 ]
Akimov, A., V [167 ]
Al Khoury, K. [65 ]
Alberghi, G. L. [35 ]
Albert, J. [252 ]
Albicocco, P. [80 ,81 ]
Alconada Verzini, M. J. [143 ,144 ]
Alderweireldt, S. [79 ]
Aleksa, M. [62 ]
Aleksandrov, I. N. [130 ]
Alexa, C. [40 ]
Alexopoulos, T. [11 ]
Alfonsi, A. [176 ,177 ]
机构
[1] Univ Adelaide, Dept Phys, Adelaide, SA, Australia
[2] Univ Alberta, Dept Phys, Edmonton, AB, Canada
[3] Ankara Univ, Dept Phys, Ankara, Turkey
[4] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey
[5] Univ Savoie Mt 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 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] 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, Phys Div, Berkeley, CA USA
[22] Univ Calif Berkeley, Berkeley, CA 94720 USA
[23] Humboldt Univ, Inst Phys, Berlin, Germany
[24] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland
[25] Univ Bern, Lab High Energy Phys, Bern, Switzerland
[26] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[27] Bogazici Univ, Dept Phys, Istanbul, Turkey
[28] Gaziantep Univ, Dept Phys Engn, Gaziantep, Turkey
[29] Istanbul Univ, Dept Phys, Istanbul, Turkey
[30] Istinye Univ, Istanbul, Turkey
[31] Univ Antonio Narino, Fac Ciencias, Bogota, Colombia
[32] Univ Antonio Narino, Ctr Invest, Bogota, Colombia
[33] Univ Nacl Colombia, Dept Fis, Bogota, Colombia
[34] Univ Bologna, Dipartimento Fis & Astron A Righi, Bologna, Italy
[35] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy
[36] Univ Bonn, Phys Inst, Bonn, Germany
[37] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
[38] Brandeis Univ, Dept Phys, Waltham, MA 02254 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] Univ Politehn Bucuresti, Bucharest, Romania
[44] West Univ Timisoara, Timisoara, Romania
[45] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia
[46] Slovak Acad Sci, Dept Subnucl Phys, Inst Expt Phys, Kosice, Slovakia
[47] Brookhaven Natl Lab, Dept Phys, Phys Dept, Upton, NY 11973 USA
[48] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, Buenos Aires, DF, Argentina
[49] Consejo Nacl Invest Cient & Tecn, Inst Fis Buenos Aires IFIBA, Buenos Aires, DF, Argentina
[50] Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina
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; 欧盟地平线“2020”;
关键词
Hadron-Hadron Scattering; Higgs Physics; Vector Boson Production; LEADING ORDER QCD; STANDARD MODEL; LHC; PARTICLE; PROGRAM; MASS;
D O I
10.1007/JHEP08(2022)104
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
A direct search for Higgs bosons produced via vector-boson fusion and subsequently decaying into invisible particles is reported. The analysis uses 139 fb(-1) of pp collision data at a centre-of-mass energy of root s =13 TeV recorded by the ATLAS detector at the LHC. The observed numbers of events are found to be in agreement with the background expectation from Standard Model processes. For a scalar Higgs boson with a mass of 125 GeV and a Standard Model production cross section, an observed upper limit of 0.145 is placed on the branching fraction of its decay into invisible particles at 95% confidence level, with an expected limit of 0.103. These results are interpreted in the context of models where the Higgs boson acts as a portal to dark matter, and limits are set on the scattering cross section of weakly interacting massive particles and nucleons. Invisible decays of additional scalar bosons with masses from 50 GeV to 2 TeV are also studied, and the derived upper limits on the cross section times branching fraction decrease with increasing mass from 1.0 pb for a scalar boson mass of 50 GeV to 0.1 pb at a mass of 2 TeV.
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页数:66
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