Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton-proton collisions at 7 TeV

被引：58

作者：

Chatrchyan, S. ^{[1
,7
]}

Khachatryan, V. ^{[1
]}

Sirunyan, A. M. ^{[1
]}

Tumasyan, A. ^{[1
]}

Adam, W. ^{[2
]}

Aguilo, E. ^{[2
]}

Bergauer, T. ^{[2
]}

Dragicevic, M. ^{[2
]}

Eroe, J. ^{[2
]}

Fabjan, C. ^{[2
,183
]}

Friedl, M. ^{[2
]}

Fruehwirth, R. ^{[2
,183
]}

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

Hoermann, N. ^{[2
]}

Hrubec, J. ^{[2
]}

Jeitler, M. ^{[2
,183
]}

Kiesenhofer, W. ^{[2
]}

Knuenz, V. ^{[2
]}

Krammer, M. ^{[2
,183
]}

Kraetschmer, I. ^{[2
]}

Liko, D. ^{[2
]}

Mikulec, I. ^{[2
]}

Pernicka, M. ^{[2
]}

Rabady, D. ^{[2
,118
]}

Rahbaran, B. ^{[2
]}

Rohringer, C. ^{[2
]}

Rohringer, H. ^{[2
]}

Schoefbeck, R. ^{[2
]}

Strauss, J. ^{[2
]}

Taurok, A. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wulz, C. -E. ^{[2
,183
]}

Mossolov, V. ^{[3
]}

Shumeiko, N. ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

Alderweireldt, S. ^{[4
]}

Bansal, M. ^{[4
]}

Bansal, S. ^{[4
]}

Cornelis, T. ^{[4
]}

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

Janssen, X. ^{[4
]}

Luyckx, S. ^{[4
]}

Mucibello, L. ^{[4
]}

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

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

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

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

[33] Tbilisi State Univ, Inst High Energy Phys & Informat, GE-380086 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, 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 ATOMIK, 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 Res EHEP, Mumbai, Maharashtra, India

来源：

PHYSICS LETTERS B | 2013年 / 722卷 / 4-5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; 欧洲研究理事会;

关键词：

CMS; Physics; Higgs; MSSM; MSSM; MASSES;

D O I：

10.1016/j.physletb.2013.04.017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for a neutral Higgs boson decaying to a pair of b quarks, and produced in association with at least one additional b quark, is presented. Multijet final states with three jets identified as originating from b quarks, at least one of which may include a non-isolated muon, are studied. The data used in this analysis correspond to an integrated luminosity of 2.7-4.8 fb(-1), collected by the CMS experiment in proton-proton collisions at the LHC at a center-of-mass energy of 7 TeV. This search is particularly sensitive to Higgs bosons in scenarios of the Minimal Supersymmetric Model (MSSM) with large values of tan beta. No excess over the predicted background from standard model processes is observed. Stringent upper limits on cross section times branching fraction are derived and interpreted as bounds in the MSSM tan beta and m(A) parameter-space. Observed 95% confidence level upper limits reach as low as tang beta approximate to 18 for M-A approximate to 100 GeV. (c) 2013 CERN. Published by Elsevier B.V. All rights. reserved.

引用

页码：207 / 232

页数：26

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