Search for New Physics with Same-Sign Isolated Dilepton Events with Jets and Missing Transverse Energy

被引:43
|
作者
Chatrchyan, S. [1 ]
Khachatryan, V. [1 ]
Sirunyan, A. M. [1 ]
Tumasyan, A. [1 ]
Adam, W. [2 ]
Bergauer, T. [2 ]
Dragicevic, M. [2 ]
Eroe, J. [2 ]
Fabjan, C. [2 ,180 ]
Friedl, M. [2 ]
Fruehwirth, R. [2 ,180 ]
Ghete, V. M. [2 ]
Hammer, J. [2 ]
Hoermann, N. [2 ]
Hrubec, J. [2 ]
Jeitler, M. [2 ,180 ]
Kiesenhofer, W. [2 ]
Knuenz, V. [2 ]
Krammer, M. [2 ,180 ]
Liko, D. [2 ]
Mikulec, I. [2 ]
Pernicka, M. [2 ]
Rahbaran, B. [2 ]
Rohringer, C. [2 ]
Rohringer, H. [2 ]
Schoefbeck, R. [2 ]
Strauss, J. [2 ]
Taurok, A. [2 ]
Wagner, P. [2 ]
Waltenberger, W. [2 ]
Walzel, G. [2 ]
Widl, E. [2 ]
Wulz, C. -E. [2 ,180 ]
Mossolov, V. [3 ]
Shumeiko, N. [3 ]
Suarez Gonzalez, J. [3 ]
Bansal, S. [4 ]
Cornelis, T. [4 ]
De Wolf, E. A. [4 ]
Janssen, X. [4 ]
Luyckx, S. [4 ]
Maes, T. [4 ]
Mucibello, L. [4 ]
Ochesanu, S. [4 ]
Roland, B. [4 ]
Rougny, R. [4 ]
Selvaggi, M. [4 ]
Staykova, Z. [4 ]
Van Haevermaet, H. [4 ]
Van Mechelen, P. [4 ]
机构
[1] Yerevan Phys Inst, Yerevan 375036, Armenia
[2] Inst Hochenergiephys OeAW, 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, B-3000 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, Inst Fis Teor, BR-01405 Sao Paulo, Brazil
[13] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria
[14] Univ Sofia, BU-1126 Sofia, Bulgaria
[15] Inst High Energy Phys, Beijing 100039, Peoples R China
[16] Peking Univ, State Key Lab Nucl Phys & Tech, Beijing 100871, Peoples R China
[17] Univ Los Andes, Bogota, Colombia
[18] Tech Univ Split, Split, Croatia
[19] Univ Split, Split, Croatia
[20] Rudjer Boskovic Inst, Zagreb, Croatia
[21] Univ Cyprus, Nicosia, Cyprus
[22] Charles Univ Prague, Prague, Czech Republic
[23] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt
[24] NICPB, Tallinn, Estonia
[25] Univ Helsinki, Dept Phys, Helsinki, Finland
[26] Helsinki Inst Phys, Helsinki, Finland
[27] Lappeenranta Univ Technol, Lappeenranta, Finland
[28] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France
[29] Ecole Polytech, CNRS, Lab Leprince Ringuet, F-91128 Palaiseau, France
[30] Univ Haute Alsace Mulhouse, CNRS, IN2P3, Inst Pluridisciplinaire Hubert Curien,Univ Strasb, Strasbourg, France
[31] IN2P3, Ctr Calcul, Villeurbanne, France
[32] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France
[33] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Georgia
[34] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany
[35] Rhein Westfal TH Aachen, Inst Phys A 3, Aachen, Germany
[36] Rhein Westfal TH Aachen, Inst Phys B 3, Aachen, Germany
[37] DESY, Hamburg, Germany
[38] Univ Hamburg, Hamburg, Germany
[39] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany
[40] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece
[41] Univ Athens, Athens, Greece
[42] Univ Ioannina, GR-45110 Ioannina, Greece
[43] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary
[44] Inst Nucl Res ATOMKI, Debrecen, Hungary
[45] Univ Debrecen, H-4012 Debrecen, Hungary
[46] Panjab Univ, Chandigarh 160014, India
[47] Univ Delhi, Delhi 110007, India
[48] Saha Inst Nucl Phys, Kolkata, India
[49] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India
[50] Tata Inst Fundamental Research EHEP, Mumbai, Maharashtra, India
基金
美国国家科学基金会; 巴西圣保罗研究基金会; 芬兰科学院;
关键词
GLUINO PRODUCTION; HADRON; SUPERSYMMETRY; MOMENTUM; SQUARK;
D O I
10.1103/PhysRevLett.109.071803
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A search for new physics is performed in events with two same-sign isolated leptons, hadronic jets, and missing transverse energy in the final state. The analysis is based on a data sample corresponding to an integrated luminosity of 4: 98 fb(-1) produced in pp collisions at a center-of-mass energy of 7 TeV collected by the CMS experiment at the LHC. This constitutes a factor of 140 increase in integrated luminosity over previously published results. The observed yields agree with the standard model predictions and thus no evidence for new physics is found. The observations are used to set upper limits on possible new physics contributions and to constrain supersymmetric models. To facilitate the interpretation of the data in a broader range of new physics scenarios, information on the event selection, detector response, and efficiencies is provided.
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页数:16
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