Search for physics beyond the standard model in events with a Z boson, jets, and missing transverse energy in pp collisions at √s=7 TeV

被引：34

作者：

Chatrchyan, S. ^{[2
]}

Khachatryan, V. ^{[2
]}

Sirunyan, A. M. ^{[2
]}

Tumasyan, A. ^{[2
]}

Adam, W. ^{[3
]}

Bergauer, T. ^{[3
]}

Dragicevic, M. ^{[3
]}

Eroe, J. ^{[3
]}

Fabjan, C. ^{[3
]}

Friedl, M. ^{[3
]}

Fruehwirth, R. ^{[3
]}

Ghete, V. M. ^{[3
]}

Hammer, J. ^{[3
]}

Hoermann, N. ^{[3
]}

Hrubec, J. ^{[3
]}

Jeitler, M. ^{[3
]}

Kiesenhofer, W. ^{[3
]}

Krammer, M. ^{[3
]}

Liko, D. ^{[3
]}

Mikulec, I. ^{[3
]}

Pernicka, M. ^{[3
]}

Rahbaran, B. ^{[3
]}

Rohringer, C. ^{[3
]}

Rohringer, H. ^{[3
]}

Schoefbeck, R. ^{[3
]}

Strauss, J. ^{[3
]}

Taurok, A. ^{[3
]}

Teischinger, F. ^{[3
]}

Wagner, R. ^{[3
]}

Waltenberger, W. ^{[3
]}

Walzel, G. ^{[3
]}

Widl, E. ^{[3
]}

Wulz, C. -E. ^{[3
]}

Mossolov, V. ^{[4
]}

Shumeiko, N. ^{[4
]}

Gonzalez, J. Suarez ^{[4
,62
]}

Bansal, S. ^{[5
]}

Cerny, K. ^{[5
]}

Cornelis, T. ^{[5
]}

De Wolf, E. A. ^{[5
]}

Janssen, X. ^{[5
]}

Luyckx, S. ^{[5
]}

Maes, T. ^{[5
]}

Mucibello, L. ^{[5
]}

Ochesanu, S. ^{[5
]}

Roland, B. ^{[5
]}

Rougny, R. ^{[5
]}

Selvaggi, M. ^{[5
]}

Van Haevermaet, H. ^{[5
]}

Van Mechelen, P. ^{[5
]}

机构：

[1] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland

[2] Yerevan Phys Inst, Yerevan 375036, Armenia

[3] Inst Hochenergiephys 0eAW, Vienna, Austria

[4] Natl Ctr Particle & High Energy Phys, Minsk, BELARUS

[5] Univ Antwerp, B-2020 Antwerp, Belgium

[6] Vrije Univ Brussel, Brussels, Belgium

[7] Univ Libre Bruxelles, Brussels, Belgium

[8] Univ Ghent, B-9000 Ghent, Belgium

[9] Univ Mons, B-7000 Mons, Belgium

[10] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[11] Univ Estado Rio de Janeiro, 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] IN2P3 CNRS, Lab Annecy Le Vieux Phys Particules, Annecy Le Vieux, France

[29] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France

[30] Ecole Polytech, IN2P3 CNRS, Lab Leprince Ringuet, Palaiseau, France

[31] Univ Haute Alsace Mulhouse, Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, CNRS IN2P3, Strasbourg, France

[32] Inst Natl Phys Nucl & Phys Particules IN2P3, Ctr Calcul, Villeurbanne, France

[33] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl, F-69622 Villeurbanne, France

[34] Georgian Acad Sci, E Andronikashvili Inst Phys, GE-380060 Tbilisi, Georgia

[35] Rhein Westfal TH Aachen, Inst Phys 1, D-52062 Aachen, Germany

[36] Rhein Westfal TH Aachen, Inst Phys A 3, D-52062 Aachen, Germany

[37] Rhein Westfal TH Aachen, Inst Phys B 3, D-52062 Aachen, Germany

[38] Deutsch Elekt Synchrotron, Hamburg, Germany

[39] Univ Hamburg, Hamburg, Germany

[40] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany

[41] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece

[42] Univ Athens, Athens, Greece

[43] Univ Ioannina, GR-45110 Ioannina, Greece

[44] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary

[45] Inst Nucl Res ATOMKI, Debrecen, Hungary

[46] Univ Debrecen, Debrecen, Hungary

[47] Panjab Univ, Chandigarh 160014, India

[48] Univ Delhi, Delhi 110007, India

[49] Saha Inst Nucl Phys, Kolkata, India

[50] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India

来源：

PHYSICS LETTERS B | 2012年 / 716卷 / 02期

基金：

美国国家科学基金会; 欧洲研究理事会; 巴西圣保罗研究基金会; 芬兰科学院;

关键词：

CMS; Physics; Supersymmetry; SUSY; FERMILAB TEVATRON; SUPERSYMMETRY; EXTENSION;

D O I：

10.1016/j.physletb.2012.08.026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search is presented for physics beyond the standard model (BSM) in events with a Z boson, jets, and missing transverse energy (E-T(miss)) This signature is motivated by BSM physics scenarios, including supersymmetry. The study is performed using a sample of proton-proton collision data collected at root s = 7 TeV with the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.98 fb(-1). The contributions from the dominant standard model backgrounds are estimated from data using two complementary strategies, the jet-Z balance technique and a method based on modeling E-T(miss) with data control samples. In the absence of evidence for BSM physics, we set limits on the non-standard-model contributions to event yields in the signal regions and interpret the results in the context of simplified model spectra. Additional information is provided to facilitate tests of other BSM physics models. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

引用

页码：260 / 284

页数：25

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