Search for Heavy Neutrinos and WR Bosons with Right-Handed Couplings in a Left-Right Symmetric Model in pp Collisions at √s=7 TeV

被引：44

作者：

Chatrchyan, S. ^{[1
]}

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
,178
]}

Friedl, M. ^{[2
]}

Fruehwirth, R. ^{[2
,178
]}

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

Hammer, J. ^{[2
]}

Hoermann, N. ^{[2
]}

Hrubec, J. ^{[2
]}

Jeitler, M. ^{[2
,178
]}

Kiesenhofer, W. ^{[2
]}

Knuenz, V. ^{[2
]}

Krammer, M. ^{[2
,178
]}

Kratschmer, I. ^{[2
]}

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
]}

Waltenberger, W. ^{[2
]}

Wulz, C. -E. ^{[2
,178
]}

Mossolov, V. ^{[3
]}

Shumeiko, N. ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

Bansal, M. ^{[4
]}

Bansal, S. ^{[4
]}

Cornelis, T. ^{[4
]}

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

Janssen, X. ^{[4
]}

Luyckx, S. ^{[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
]}

Van Spilbeeck, A. ^{[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 & Technol, 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] IN2P3 CNRS, Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France

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

[31] CNRS IN2P3, Inst Natl Phys Nucl & Phys Particules, 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 & Informat, 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, 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 Res EHEP, Mumbai, Maharashtra, India

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 26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：

MAJORANA NEUTRINOS; MASS;

D O I：

10.1103/PhysRevLett.109.261802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Results are presented from a search for heavy, right-handed muon neutrinos, N-mu, and right-handed W-R bosons, which arise in the left-right symmetric extensions of the standard model. The analysis is based on a 5: 0 fb(-1) sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected by the CMS detector at the Large Hadron Collider. No evidence is observed for an excess of events over the standard model expectation. For models with exact left-right symmetry, heavy right-handed neutrinos are excluded at 95% confidence level for a range of neutrino masses below the WR mass, dependent on the value of M-WR. The excluded region in the two-dimensional (M-WR, MN mu) mass plane extends to M-WR = 2.5TeV. DOI: 10.1103/PhysRevLett.109.261802

引用

页数：16

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