Search for resonances in the dijet mass spectrum from 7 TeV pp collisions at CMS

被引：149

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
,116
]}

Haensel, S. ^{[3
]}

Hoch, M. ^{[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, H. ^{[3
]}

Schoefbeck, R. ^{[3
]}

Strauss, J. ^{[3
]}

Taurok, A. ^{[3
]}

Teischinger, F. ^{[3
]}

Trauner, C. ^{[3
]}

Wagner, P. ^{[3
]}

Waltenberger, W. ^{[3
]}

Walzel, G. ^{[3
]}

Widl, E. ^{[3
]}

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

Mossolov, V. ^{[4
]}

Shumeiko, N. ^{[4
]}

Gonzalez, J. Suarez ^{[4
]}

Bansal, S. ^{[5
]}

Benucci, L. ^{[5
,64
]}

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
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy

[2] Yerevan Phys Inst, Yerevan 375036, Armenia

[3] OeAW, Inst Hochenergiephys, 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] Catholic Univ Louvain, B-1348 Louvain, Belgium

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

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

[12] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil

[13] Univ Estadual Paulista, Inst Fis Teor, BR-01405 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 & Tech, Beijing 100871, Peoples R China

[18] Univ Los Andes, Bogota, Colombia

[19] Tech Univ Split, Split, Croatia

[20] Univ Split, Split, Croatia

[21] Rudjer Boskovic Inst, Zagreb, Croatia

[22] Univ Cyprus, Nicosia, Cyprus

[23] Charles Univ Prague, Prague, Czech Republic

[24] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, 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] CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, Annecy Le Vieux, France

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

[31] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

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

[33] IN2P3, Ctr Calcul, Villeurbanne, France

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

[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, D-7500 Karlsruhe, Germany

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

[43] Univ Athens, Athens, Greece

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

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

[46] Inst Nucl Res ATOMKI, Debrecen, Hungary

[47] Univ Debrecen, Debrecen, Hungary

[48] Panjab Univ, Chandigarh 160014, India

[49] Univ Delhi, Delhi 110007, India

[50] Saha Inst Nucl Phys, Kolkata, India

来源：

PHYSICS LETTERS B | 2011年 / 704卷 / 03期

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：

LHC; CMS; Jet; Dijet; Resonance; Search;

D O I：

10.1016/j.physletb.2011.09.015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for narrow resonances with a mass of at least 1 TeV in the dijet mass spectrum is performed using pp collisions at root s = 7 TeV corresponding to an integrated luminosity of 1 fb(-1), collected by the CMS experiment at the LHC. No resonances are observed. Upper limits at the 95% confidence level are presented on the product of the resonance cross section, branching fraction into dijets, and acceptance, separately for decays into quark-quark, quark-gluon, and gluon-gluon pairs. The data exclude new particles predicted in the following models at the 95% confidence level: string resonances with mass less than 4.00 TeV, E-6 diquarks with mass less than 3.52 TeV, excited quarks with mass less than 2.49 TeV, axigluons and colorons with mass less than 2.47 TeV, and W' bosons with mass less than 1.51 TeV. These results extend previous exclusions from the dijet mass search technique. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.

引用

页码：123 / 142

页数：20

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