Search for pair production of Higgsinos in final states with at least three b-tagged jets in √s=13 TeV pp collisions using the ATLAS detector

被引:27
作者
Aaboud, M. [54 ,55 ]
Aad, G. [154 ]
Abbott, B. [182 ]
Abdinov, O. [18 ]
Abeloos, B. [186 ]
Abidi, S. H. [231 ]
AbouZeid, O. S. [206 ]
Abraham, N. L. [217 ]
Abramowicz, H. [224 ]
Abreu, H. [223 ]
Abulaiti, Y. [8 ]
Acharya, B. S. [100 ,101 ,259 ]
Adachi, S. [226 ,227 ]
Adamczyk, L. [131 ]
Adelman, J. [176 ]
Adersberger, M. [167 ]
Adye, T. [204 ]
Affolder, A. A. [206 ]
Afik, Y. [223 ]
Agheorghiesei, C. [40 ]
Aguilar-Saavedra, J. A. [194 ,199 ]
Ahmadov, F. [18 ,124 ]
Aielli, G. [115 ,116 ]
Akatsuka, S. [134 ]
Akesson, T. P. A. [148 ]
Akilli, E. [78 ]
Akimov, A., V [163 ]
Alberghi, G. L. [33 ,34 ]
Albert, J. [242 ]
Albicocco, P. [74 ,75 ]
Alconada Verzini, M. J. [138 ,139 ]
Alderweireldt, S. [173 ]
Aleksa, M. [57 ]
Aleksandrov, I. N. [124 ]
Alexa, C. [39 ]
Alexander, G. [224 ]
Alexopoulos, T. [12 ]
Alhroob, M. [182 ]
Ali, B. [201 ]
Aliev, M. [103 ,104 ]
Alimonti, G. [105 ]
Alison, J. [58 ]
Alkire, S. P. [209 ]
Allaire, C. [186 ]
Allbrooke, B. M. M. [217 ]
Allen, B. W. [185 ]
Allport, P. P. [31 ]
Aloisio, A. [107 ,108 ]
Alonso, A. [61 ]
Alonso, F. [138 ,139 ]
机构
[1] Univ Adelaide, Dept Phys, Adelaide, SA, Australia
[2] SUNY Albany, Phys Dept, New York, NY 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 Mont Blanc, Univ Grenoble Alpes, LAPP, CNRS,IN2P3, Annecy, 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] 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 Phys Engn, 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] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China
[22] Tsinghua Univ, Phys Dept, Beijing, Peoples R China
[23] UCAS, Beijing, Peoples R China
[24] Univ Belgrade, Inst Phys, Belgrade, Serbia
[25] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[26] Lawrence Berkeley Natl Lab, Phys Div, 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, Lab High Energy Phys, Bern, Switzerland
[31] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[32] Univ Antonio Narino, Ctr Invest, Bogota, Colombia
[33] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy
[34] INFN, Sez Bologna, Bologna, Italy
[35] Univ Bonn, Phys Inst, Bonn, Germany
[36] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
[37] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA
[38] Transilvania Univ Brasov, Brasov, Romania
[39] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
[40] Alexandru Ioan Cuza Univ, Dept Phys, Iasi, Romania
[41] Natl Inst Res & Dev Isotop & Mol Technol, Phys Dept, Cluj Napoca, Romania
[42] West Univ Timisoara, Timisoara, Romania
[43] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia
[44] Slovak Acad Sci, Dept Subnucl Phys, Inst Expt Phys, Kosice, Slovakia
[45] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[46] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina
[47] Univ Cambridge, Cavendish Lab, Cambridge, England
[48] Univ Cape Town, Dept Phys, Cape Town, South Africa
[49] Univ Johannesburg, Dept Mech Engn Sci, Johannesburg, South Africa
[50] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa
基金
欧盟地平线“2020”; 巴西圣保罗研究基金会; 美国国家科学基金会; 加拿大自然科学与工程研究理事会;
关键词
GLUINO PRODUCTION; SUPERSYMMETRY; EXTENSION; SQUARK; PREDICTIONS;
D O I
10.1103/PhysRevD.98.092002
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A search for pair production of the supersymmetric partners of the Higgs boson (higgsinos (H) over tilde) in gaugemediated scenarios is reported. Each higgsino is assumed to decay to a Higgs boson and a gravitino. Two complementary analyses, targeting high- and low-mass signals, are performed to maximize sensitivity. The two analyses utilize LHC pp collision data at a center-of-mass energy root s = 13 TeV, the former with an integrated luminosity of 36.1 fb(-1) and the latter with 24.3 fb(-1), collected with the ATLAS detector in 2015 and 2016. The search is performed in events containing missing transverse momentum and several energetic jets, at least three of which must be identified as b-quark jets. No significant excess is found above the predicted background. Limits on the cross section are set as a function of the mass of the <(Hover tilde> in simplified models assuming production via mass-degenerate higgsinos decaying to a Higgs boson and a gravitino. Higgsinos with masses between 130 and 230 GeV and between 290 and 880 GeV are excluded at the 95% confidence level. Interpretations of the limits in terms of the branching ratio of the higgsino to a Z boson or a Higgs boson are also presented, and a 45% branching ratio to a Higgs boson is excluded for m(<(Hover tilde>) approximate to 400 GeV.
引用
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页数:34
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