Search for high-mass new phenomena in the dilepton final state using proton-proton collisions at √s=13 TeV with the ATLAS detector

被引:71
作者
Aaboud, M. [173 ,174 ]
Aad, G. [105 ,106 ]
Abbott, B. [137 ]
Abdallah, J. [78 ]
Abdinov, O. [12 ]
Abeloos, B. [141 ]
Aben, R. [130 ,131 ]
AbouZeid, O. S. [177 ]
Abraham, N. L. [194 ]
Abramowicz, H. [198 ]
Abreu, H. [197 ]
Abreu, R. [140 ]
Abulaiti, Y. [189 ,190 ]
Acharya, B. S. [211 ,212 ,232 ]
Adamczyk, L. [47 ]
Adams, D. L. [30 ]
Adelman, J. [132 ]
Adomeit, S. [121 ]
Adye, T. [163 ]
Affolder, A. A. [91 ]
Agatonovic-Jovin, T. [14 ]
Agricola, J. [66 ]
Aguilar-Saavedra, J. A. [152 ,157 ,158 ]
Ahlen, S. P. [27 ]
Ahmadov, F. [80 ,233 ]
Aielli, G. [166 ,167 ]
Akerstedt, H. [189 ,190 ]
Akesson, T. P. A. [101 ]
Akimov, A. V. [117 ]
Alberghi, G. L. [24 ,25 ]
Albert, J. [222 ]
Albrand, S. [67 ]
Alconada Verzini, M. J. [86 ,87 ]
Aleksa, M. [35 ]
Aleksandrov, I. N. [80 ]
Alexa, C. [31 ]
Alexander, G. [198 ]
Alexopoulos, T. [10 ]
Alhroob, M. [137 ]
Ali, B. [160 ]
Aliev, M. [89 ,90 ]
Alimonti, G. [112 ]
Alison, J. [36 ]
Alkire, S. P. [43 ]
Allbrooke, B. M. M. [194 ]
Allen, B. W. [140 ]
Allport, P. P. [21 ]
Aloisio, A. [126 ,127 ]
Alonso, A. [44 ]
Alonso, F. [86 ,87 ]
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, Ankara, Turkey
[5] CNRS, IN2P3, LAPP, Annecy Le Vieux, France
[6] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
[7] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[8] Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
[9] Univ Athens, Dept Phys, Athens, Greece
[10] Natl Tech Univ Athens, Dept Phys, Zografos, Greece
[11] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA
[12] Azerbaijan Acad Sci, Inst Phys, Baku, Azerbaijan
[13] Barcelona Inst Sci & Technol, IFAE, Barcelona, Spain
[14] Univ Belgrade, Inst Phys, Belgrade, Serbia
[15] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[16] Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA USA
[17] Univ Calif Berkeley, Berkeley, CA 94720 USA
[18] Humboldt Univ, Dept Phys, Berlin, Germany
[19] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland
[20] Univ Bern, High Energy Phys Lab, Bern, Switzerland
[21] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[22] Bogazici Univ, Dept Phys, Istanbul, Turkey
[23] Univ Antonio Narino, Ctr Invest, Bogota, Colombia
[24] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy
[25] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy
[26] Univ Bonn, Inst Phys, Bonn, Germany
[27] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
[28] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA
[29] Univ Fed Rio de Janeiro, COPPE, EE, IF, Rio De Janeiro, Brazil
[30] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[31] Natl Inst Phys & Nucl Engn, Bucharest, Romania
[32] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina
[33] Univ Cambridge, Cavendish Lab, Cambridge, England
[34] Carleton Univ, Dept Phys, Ottawa, ON, Canada
[35] CERN, Geneva, Switzerland
[36] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA
[37] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile
[38] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile
[39] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
[40] Clermont Univ, Phys Corpusculaire Lab, Clermont Ferrand, France
[41] Univ Blaise Pascal, Clermont Ferrand, France
[42] CNRS, IN2P3, Clermont Ferrand, France
[43] Columbia Univ, Nevis Lab, Irvington, NY USA
[44] Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark
[45] Ist Nazl Fis Nucl, Lab Nazl Frascati, Grp Collegato Cosenza, Frascati, Italy
[46] Univ Calabria, Dipartimento Fis, Arcavacata Di Rende, Italy
[47] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland
[48] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland
[49] Southern Methodist Univ, Dept Phys, Dallas, TX USA
[50] Univ Texas Dallas, Dept Phys, Richardson, TX 75083 USA
基金
欧盟地平线“2020”; 美国国家科学基金会; 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;
关键词
PARTON DISTRIBUTIONS; CROSS-SECTION; PLUS PLUS; PHYSICS; LHC;
D O I
10.1016/j.physletb.2016.08.055
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. The search uses 3.2 fb(-1) of proton-proton collision data, collected at root s = 13 TeV by the ATLAS experiment at the LHC in 2015. The dilepton invariant mass is used as the discriminating variable. No significant deviation from the Standard Model prediction is observed; therefore limits are set on the signal model parameters of interest at 95% credibility level. Upper limits are set on the cross-section times branching ratio for resonances decaying to dileptons, and the limits are converted into lower limits on the resonance mass, ranging between 2.74 TeV and 3.36 TeV, depending on the model. Lower limits on the llqq contact interaction scale are set between 16.7 TeV and 25.2 TeV, also depending on the model. (C) 2016 The Author. Published by Elsevier B.V.
引用
收藏
页码:372 / 392
页数:21
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