Search for supersymmetry with photons in pp collisions at √s=8 TeV

被引:1
|
作者
Khachatryan, V. [1 ]
Sirunyan, A. M. [1 ]
Tumasyan, A. [2 ]
Adam, W. [2 ]
Asilar, E. [2 ]
Bergauer, T. [2 ]
Brandstetter, J. [2 ]
Brondolin, E. [2 ]
Dragicevic, M. [2 ]
Ero, J. [2 ]
Flechl, M. [2 ]
Friedl, M. [2 ]
Fruehwirth, R. [2 ,191 ]
Ghete, V. M. [2 ]
Hartl, C. [2 ]
Hoermann, N. [2 ]
Hrubec, J. [2 ]
Jeitler, M. [2 ,191 ]
Knuenz, V. [2 ]
Koenig, A. [2 ]
Krammer, M. [2 ,191 ]
Kraetschmer, I. [2 ]
Liko, D. [2 ]
Matsushita, T. [2 ]
Mikulec, I. [2 ]
Rabady, D. [2 ]
Rahbaran, B. [2 ]
Rohringer, H. [2 ]
Schieck, J. [2 ]
Schoefbeck, R. [2 ]
Strauss, J. [2 ]
Treberer-Treberspurg, W. [2 ]
Waltenberger, W. [2 ]
Wulz, C. -E. [2 ]
Mossolov, V. [3 ]
Shumeiko, N. [3 ]
Gonzalez, J. Suarez [3 ]
Alderweireldt, S. [4 ]
Cornelis, T. [4 ]
De Wolf, E. A. [4 ]
Janssen, X. [4 ]
Knutsson, A. [4 ]
Lauwers, J. [4 ]
Luyckx, S. [4 ]
Ochesanu, S. [4 ]
Rougny, R. [4 ]
Van de Klundert, M. [4 ]
Van Haevermaet, H. [4 ]
Van Mechelen, P. [4 ]
Van Remortel, N. [4 ]
机构
[1] Yerevan Phys Inst, Yerevan 375036, Armenia
[2] Austrian Acad Sci, Inst Hochenergiephys, A-1050 Vienna, Austria
[3] Natl Ctr Particle & High Energy Phys, Minsk, BELARUS
[4] Univ Antwerp, B-2020 Antwerp, Belgium
[5] Vrije Univ Brussel, Brussels, Belgium
[6] Univ Libre Bruxelles, Brussels, Belgium
[7] Univ Ghent, B-9000 Ghent, Belgium
[8] Catholic Univ Louvain, Louvain, Belgium
[9] Univ Mons, B-7000 Mons, Belgium
[10] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
[11] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil
[12] Univ Estadual Paulista, Sao Paulo, Brazil
[13] Univ Fed ABC, Sao Paulo, Brazil
[14] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria
[15] Univ Sofia, BU-1126 Sofia, Bulgaria
[16] Inst High Energy Phys, Beijing 100039, Peoples R China
[17] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[18] Univ Los Andes, Bogota, Colombia
[19] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia
[20] Univ Split, Fac Sci, Split, Croatia
[21] Rudjer Boskovic Inst, Zagreb, Croatia
[22] Univ Cyprus, CY-1678 Nicosia, Cyprus
[23] Charles Univ Prague, Prague, Czech Republic
[24] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt
[25] NICPB, Tallinn, Estonia
[26] Univ Helsinki, Dept Phys, Helsinki, Finland
[27] Helsinki Inst Phys, Helsinki, Finland
[28] Lappeenranta Univ Technol, Lappeenranta, Finland
[29] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France
[30] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[31] Univ Haute Alsace Mulhouse, Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, CNRS,IN2P3, Strasbourg, France
[32] CNRS, IN2P3, Ctr Calcul, Inst Natl Phys Nucl & Phys Particules, Villeurbanne, France
[33] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France
[34] Georgian Tech Univ, Tbilisi, Georgia
[35] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Georgia
[36] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany
[37] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany
[38] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany
[39] DESY, Hamburg, Germany
[40] Univ Hamburg, Hamburg, Germany
[41] Univ Karlsruhe, Inst Expt Kernphys, Karlsruhe, Germany
[42] NCSR Demokritos, INPP, Aghia Paraskevi, Greece
[43] Univ Athens, GR-10679 Athens, Greece
[44] Univ Ioannina, GR-45110 Ioannina, Greece
[45] Wigner Res Ctr Phys, Budapest, Hungary
[46] Inst Nucl Res ATOMKI, Debrecen, Hungary
[47] Univ Debrecen, Debrecen, Hungary
[48] Natl Inst Sci Educ & Res, Bhubaneswar, Orissa, India
[49] Panjab Univ, Chandigarh 160014, India
[50] Univ Delhi, Delhi 110007, India
基金
美国国家科学基金会; 巴西圣保罗研究基金会; 欧洲研究理事会; 芬兰科学院;
关键词
PARTON DISTRIBUTIONS; BREAKING; MODELS; SQUARK;
D O I
10.1103/PhysRevD.92.072006
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Two searches for physics beyond the standard model in events containing photons are presented. The data sample used corresponds to an integrated luminosity of 19.7 fb(-1) of proton-proton collisions at root s = 8 TeV, collected with the CMS experiment at the CERN LHC. The analyses pursue different inclusive search strategies. One analysis requires at least one photon, at least two jets, and a large amount of transverse momentum imbalance, while the other selects events with at least two photons and at least one jet, and uses the razor variables to search for signal events. The background expected from standard model processes is evaluated mainly from data. The results are interpreted in the context of general gauge-mediated supersymmetry, with the next-to-lightest supersymmetric particle either a bino- or wino-like neutralino, and within simplified model scenarios. Upper limits at the 95% confidence level are obtained for cross sections as functions of the masses of the intermediate supersymmetric particles.
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页数:23
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