Search for heavy stable charged particles in pp collisions at √s=7 TeV

被引：0

作者：

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
]}

Friedl, M. ^{[2
]}

Fruehwirth, R. ^{[2
]}

Ghete, V. M. ^{[2
]}

Hammer, J. ^{[2
,114
]}

Haensel, S. ^{[2
]}

Hartl, C. ^{[2
]}

Hoch, M. ^{[2
]}

Hoermann, N. ^{[2
]}

Hrubec, J. ^{[2
]}

Jeitler, M. ^{[2
]}

Kasieczka, G. ^{[2
]}

Kiesenhofer, W. ^{[2
]}

Krammer, M. ^{[2
]}

Liko, D. ^{[2
]}

Mikulec, I. ^{[2
]}

Pernicka, M. ^{[2
]}

Rohringer, H. ^{[2
]}

Schoefbeck, R. ^{[2
]}

Strauss, J. ^{[2
]}

Taurok, A. ^{[2
]}

Teischinger, F. ^{[2
]}

Waltenberger, W. ^{[2
]}

Walzel, G. ^{[2
]}

Widl, E. ^{[2
]}

Wulz, C. -E. ^{[2
]}

Mossolov, V. ^{[3
]}

Shumeiko, N. ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

Benucci, L. ^{[4
]}

Ceard, L. ^{[4
]}

Cerny, K. ^{[4
]}

De Wolf, E. A. ^{[4
]}

Janssen, X. ^{[4
]}

Maes, T. ^{[4
]}

Mucibello, L. ^{[4
]}

Ochesanu, S. ^{[4
]}

Roland, B. ^{[4
]}

Rougny, R. ^{[4
]}

Selvaggi, M. ^{[4
]}

Van Haevermaet, H. ^{[4
]}

Van Mechelen, P. ^{[4
]}

Van Remortel, N. ^{[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-1348 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] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt

[23] NICPB, Tallinn, Estonia

[24] Univ Helsinki, Dept Phys, Helsinki, Finland

[25] Helsinki Inst Phys, Helsinki, Finland

[26] Lappeenranta Univ Technol, Lappeenranta, Finland

[27] IN2P3 CNRS, Lab Annecy Le Vieux Phys Particules, Annecy Le Vieux, France

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

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

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

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

[32] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France

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

[34] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany

[35] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[36] Rhein Westfal TH Aachen, Phys Inst 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] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India

[49] Tata Inst Fundamental Res EHEP, Bombay, Maharashtra, India

[50] Tata Inst Fundamental Res HECR, Bombay, Maharashtra, India

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2011年 / 03期

基金：

芬兰科学院; 巴西圣保罗研究基金会;

关键词：

Hadron-Hadron Scattering; SUPERSYMMETRY;

D O I：

10.1007/JHEP03(2011)024

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The result of a search at the LHC for heavy stable charged particles produced in pp collisions at root s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3.1 pb(-1). Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0.1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c(2), using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c(2) is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.

引用

页数：29

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