Search for a high-mass Higgs boson decaying to a W boson pair in pp collisions at √s=8TeV with the ATLAS detector

被引:0
作者
Aad, G. [120 ,121 ]
Abbott, B. [152 ]
Abdallah, J. [214 ]
Abdinov, O. [14 ]
Aben, R. [145 ,146 ]
Abolins, M. [126 ]
AbouZeid, O. S. [221 ]
Abramowicz, H. [216 ]
Abreu, H. [215 ]
Abreu, R. [155 ]
Abulaiti, Y. [207 ,208 ]
Acharya, B. S. [228 ,229 ,249 ]
Adamczyk, L. [60 ]
Adams, D. L. [37 ]
Adelman, J. [147 ]
Adomeit, S. [136 ]
Adye, T. [181 ]
Affolder, A. A. [106 ]
Agatonovic-Jovin, T. [17 ]
Agricola, J. [80 ]
Aguilar-Saavedra, J. A. [168 ,173 ,174 ]
Ahlen, S. P. [31 ]
Ahmadov, F. [95 ,250 ]
Aielli, G. [184 ,185 ]
Akerstedt, H. [207 ,208 ]
Akesson, T. P. A. [116 ]
Akimov, A. V. [132 ]
Alberghi, G. L. [28 ,29 ]
Albert, J. [239 ]
Albrand, S. [81 ]
Verzini, M. J. Alconada [101 ,102 ]
Aleksa, M. [43 ]
Aleksandrov, I. N. [95 ]
Alexa, C. [38 ]
Alexander, G. [216 ]
Alexopoulos, T. [13 ]
Alhroob, M. [152 ]
Alimonti, G. [127 ]
Alio, L. [120 ,121 ]
Alison, J. [44 ]
Alkire, S. P. [56 ]
Allbrooke, B. M. M. [212 ]
Allport, P. P. [106 ]
Aloisio, A. [141 ,142 ,179 ,181 ,215 ]
Alonso, A. [57 ]
Alonso, F. [101 ,102 ]
Alpigiani, C. [109 ]
Altheimer, A. [56 ]
Gonzalez, B. Alvarez [43 ]
Piqueras, D. Alvarez [233 ,234 ,235 ,236 ,237 ]
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, TR-06100 Ankara, Turkey
[5] Istanbul Aydin Univ, Istanbul, Turkey
[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey
[7] CNRS, IN2P3, LAPP, Annecy Le Vieux, France
[8] Univ Savoie Mt Blanc, Annecy Le Vieux, France
[9] Argonne Natl Lab, Div High Energy Phys, 9700 S Cass Ave, Argonne, IL 60439 USA
[10] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[11] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA
[12] Univ Athens, Dept Phys, Athens, Greece
[13] Natl Tech Univ Athens, Dept Phys, Zografos, Greece
[14] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan
[15] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain
[16] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain
[17] Univ Belgrade, Inst Phys, Belgrade, Serbia
[18] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[19] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA
[20] Univ Calif Berkeley, Berkeley, CA 94720 USA
[21] Humboldt Univ, Dept Phys, D-10099 Berlin, Germany
[22] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland
[23] Univ Bern, High Energy Phys Lab, Bern, Switzerland
[24] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[25] Bogazici Univ, Dept Phys, Istanbul, Turkey
[26] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey
[27] Dogus Univ, Dept Phys, Istanbul, Turkey
[28] INFN Sez, Bologna, Italy
[29] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy
[30] Univ Bonn, Inst Phys, Nussallee 12, Bonn, Germany
[31] Boston Univ, Dept Phys, Boston, MA 02215 USA
[32] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA
[33] Univ Fed Rio De Janeiro COPPE EE IF, Rio De Janeiro, Brazil
[34] Fed Univ Juiz De Fora UFJF, Elect Circuits Dept, Juiz De Fora, Brazil
[35] Fed Univ Sao Joao Del Rei UFSJ, Sao Joao Del Rei, Brazil
[36] Univ Sao Paulo, Inst Fis, CP 20516, BR-01498 Sao Paulo, Brazil
[37] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[38] Natl Inst Phys & Nucl Engn, Bucharest, Romania
[39] Natl Inst Res & Dev Isotop & Mol Technol, Dept Phys, Cluj Napoca, Romania
[40] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina
[41] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[42] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada
[43] CERN, Geneva, Switzerland
[44] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[45] Pontificia Univ Catolica Chile, Dept Fis, Alameda 340, Santiago, Chile
[46] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile
[47] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
[48] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China
[49] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China
[50] Shandong Univ, Sch Phys, Jinan, Shandong, Peoples R China
来源
JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 01期
基金
美国国家科学基金会; 加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会;
关键词
Hadron-Hadron scattering; Beyond Standard Model; Higgs physics; RADIATIVE-CORRECTIONS; STANDARD MODEL; COLLIDERS;
D O I
10.1007/JHEP01(2016)032
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 search for a high-mass Higgs boson H is performed in the H -> WW -> l nu l nu and H -> WW -> l nu qq decay channels using pp collision data corresponding to an integrated luminosity of 20.3 fb(-1) collected at root s = 8TeV by the ATLAS detector at the Large Hadron Collider. No evidence of a high-mass Higgs boson is found. Limits on sigma(H) x BR(H -> WW) as a function of the Higgs boson mass m(H) are determined in three different scenarios: one in which the heavy Higgs boson has a narrow width compared to the experimental resolution, one for a width increasing with the boson mass and modeled by the complex-pole scheme following the same behavior as in the Standard Model, and one for intermediate widths. The upper range of the search is m(H) = 1500 GeV for the narrow-width scenario and m(H) = 1000 GeV for the other two scenarios. The lower edge of the search range is 200{300 GeV and depends on the analysis channel and search scenario. For each signal interpretation, individual and combined limits from the two WW decay channels are presented. At m(H) = 1500 GeV, the highest-mass point tested, sigma(H) x BR(H -> WW) for a narrow-width Higgs boson is constrained to be less than 22 fb and 6.6 fb at 95% CL for the gluon fusion and vector-boson fusion production modes, respectively.
引用
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页码:1 / 66
页数:66
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