Search for a Standard Model Higgs Boson in the H → ZZ → l+l-v(v)over-bar Decay Channel with the ATLAS Detector

被引:28
作者
Aad, G. [1 ]
Abbott, B. [146 ]
Abdallah, J. [17 ,18 ,19 ]
Abdelalim, A. A. [69 ]
Abdesselam, A. [154 ,206 ,207 ,210 ,223 ,224 ,225 ,228 ,231 ]
Abdinov, O. [16 ]
Abi, B. [147 ]
Abolins, M. [120 ]
Abramowicz, H. [204 ]
Abreu, H. [150 ,151 ]
Acerbi, E. [121 ,122 ]
Acharya, B. S. [217 ,218 ]
Adams, D. L. [38 ]
Addy, N. [80 ]
Adelman, J. [234 ]
Aderholz, M. [132 ]
Adomeit, S. [131 ]
Adragna, P. [104 ]
Adye, T. [169 ]
Aefsky, S. [35 ]
Aguilar-Saavedra, J. A. [162 ,163 ,164 ]
Aharrouche, M. [112 ]
Ahlen, S. P. [34 ]
Ahles, F. [1 ]
Ahmad, A. [199 ]
Ahsan, M. [61 ]
Aielli, G. [173 ,174 ]
Akdogan, T. [28 ]
Akesson, T. P. A. [110 ]
Akimoto, G. [206 ,207 ]
Akimov, A. V. [127 ]
Akiyama, A. [93 ]
Alam, M. S. [2 ]
Alam, M. A. [105 ]
Albert, J. [228 ]
Albrand, S. [77 ,78 ,79 ]
Aleksa, M. [44 ]
Aleksandrov, I. N. [91 ]
Alessandria, F. [121 ]
Alexa, C. [39 ]
Alexander, G. [204 ]
Alexandre, G. [69 ]
Alexopoulos, T. [15 ]
Alhroob, M. [33 ]
Aliev, M. [24 ]
Alimonti, G. [121 ]
Alison, J. [157 ]
Aliyev, M. [16 ]
Allport, P. P. [101 ]
Allwood-Spiers, S. E. [75 ]
机构
[1] Univ Freiburg, Fak Math & Phys, Freiburg I Br, Germany
[2] SUNY Albany, Albany, NY 12222 USA
[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada
[4] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey
[5] Dumlupinar Univ, Dept Phys, Kutahya, Turkey
[6] Gazi Univ, Dept Phys, Ankara, Turkey
[7] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey
[8] Turkish Atom Energy Commiss, Ankara, Turkey
[9] CNRS IN2P3, LAPP, Annecy Le Vieux, France
[10] Univ Savoie, Annecy Le Vieux, France
[11] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
[12] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[13] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA
[14] Univ Athens, Dept Phys, Athens, Greece
[15] Natl Tech Univ Athens, Dept Phys, Zografos, Greece
[16] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan
[17] Univ Autonoma Barcelona, Inst Fis Altes Energies, Barcelona, Spain
[18] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain
[19] ICREA, Barcelona, Spain
[20] Univ Belgrade, Inst Phys, Belgrade, Serbia
[21] Vinca Inst Nucl Sci, Belgrade, Serbia
[22] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[23] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Phys, Berkeley, CA 94720 USA
[24] Humboldt Univ, Dept Phys, Berlin, Germany
[25] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland
[26] Univ Bern, High Energy Phys Lab, Bern, Switzerland
[27] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[28] Bogazici Univ, Dept Phys, Istanbul, Turkey
[29] Dogus Univ, Div Phys, Istanbul, Turkey
[30] Gaziantep Univ, Dept Phys, Gaziantep, Turkey
[31] INFN Sez Bologna, Bologna, Italy
[32] Univ Bologna, Dipartmento Fis, Bologna, Italy
[33] Univ Bonn, Inst Phys, D-5300 Bonn, Germany
[34] Boston Univ, Dept Phys, Boston, MA 02215 USA
[35] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA
[36] Univ Fed Rio de Janeiro COPPE EE IF, Rio De Janeiro, Brazil
[37] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil
[38] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[39] Natl Inst Phys & Nucl Engn, Bucharest, Romania
[40] Univ Politeh Bucharest, Bucharest, Romania
[41] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina
[42] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[43] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada
[44] CERN, Geneva, Switzerland
[45] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[46] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile
[47] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile
[48] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
[49] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China
[50] Nanjing Univ, Dept Phys, Jiangsu, Peoples R China
基金
加拿大自然科学与工程研究理事会; 美国国家科学基金会; 巴西圣保罗研究基金会;
关键词
D O I
10.1103/PhysRevLett.107.221802
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A search for a heavy standard model Higgs boson decaying via H -> ZZ -> l(+)l(-)v (v) over bar, where l = e, mu, is presented. It is based on proton-proton collision data at root s = 7 TeV, collected by the ATLAS experiment at the LHC in the first half of 2011 and corresponding to an integrated luminosity of 1.04 fb(-1). The data are compared to the expected standard model backgrounds. The data and the background expectations are found to be in agreement and upper limits are placed on the Higgs boson production cross section over the entire mass window considered; in particular, the production of a standard model Higgs boson is excluded in the region 340 < m(H) < 450 GeV at the 95% confidence level.
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页数:18
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