Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at √s =7 TeV with the ATLAS detector

The ATLAS collaboration

doi:10.1140/epjc/s10052-012-2056-4

Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at √s =7 TeV with the ATLAS detector

The ATLAS collaboration

European Organization for Nuclear Research
University of Freiburg
University of Oklahoma
The Barcelona Institute of Science and Technology
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Azerbaijan Academy of Sciences
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Brookhaven National Laboratory Physics Department
Hampton University
Yale University
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Queen Mary University of London
Rutherford Appleton Laboratory
Brandeis University
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University of Granada
Johannes Gutenberg University
Boston University
Stony Brook University
University of Texas
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Bogazici University
Lund University
University of Tokyo
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Kobe University
State University of New York Albany
Royal Holloway University of London
University of Victoria
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Joint Institute for Nuclear Research, Dubna
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
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University of Valencia
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Columbia University
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Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
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Stanford Linear Accelerator Center
Duke University
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Justus-Liebig-Universität Giessen
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Long Beach VA and University of California
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Bergische Universität Gesamthochschule Wuppertal
Universidad Autónoma de Madrid
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Laboratoire de Probabilités et Modèles Aléatoires
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Gaziantep University
Technion - Israel Institute of Technology
University of Iowa
McGill University
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Novosibirsk State University
Université Hassan II Aïn Chock - Casablanca et LASAARE
University of Illinois
York University
University of Regina
University of Amsterdam
c/o DESY
University of Bologna
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
University of Pisa
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University of Salento
Université Paris-Sud
Niels Bohr Institutet
B. I. Stepanov Institute of Physics
The University of Sheffield
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UMass Amherst
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Indiana University Bloomington
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and Physics University of Udine
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Iowa State University
Nanjing University
Université Mohammed V
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Academia Sinica, Institute Of Physics
Institute of Physics of the Czech Academy of Sciences
Department of Biochemistry and Molecular and Structural Biology
Università di Napoli Parthenope
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Technical University Dresden
University 'Politehnica' of Bucharest
Charles University
Simon Fraser University
Middle East Technical University (METU)
Université Mohamed Premier
Louisiana Tech University
Pontificia Universidad Católica de Chile
Southern Methodist University
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TOBB University of Economics and Technology
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Petersburg Nuclear Physics Institute (PNPI)
Shandong University
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Yerevan Physics Institute
Palacky University Olomouc
University of Cape Town
University of the Witwatersrand, Johannesburg
University of Science and Technology of China
Osaka University
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Nagoya University
Shinshu University
Aristotle University of Thessaloniki
Kyoto University
Tokyo Institute of Technology
KTH Royal Institute of Technology
Waseda University
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Manhattan College
Sun Yat-Sen University
Universidad Antonio Narino
Hiroshima Institute of Technology
Okayama University
Hiroshima University
Universidade de Minho
University of South Carolina
Wigner Research Centre for Physics
California Institute of Technology
Jagiellonian University
Nagasaki Institute of Applied Science
Kyoto University of Education
Ritsumeikan University Biwako-Kusatsu Campus
Massachusetts Institute of Technology
Turkish Atomic Energy Authority

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

This letter reports on a search for hypothetical heavy neutrinos, N, and right-handed gauge bosons, W_R, in events with high transverse momentum objects which include two reconstructed leptons and at least one hadronic jet. The results were obtained from data corresponding to an integrated luminosity of 2.1 fb⁻¹collected in proton–proton collisions at √ s = 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. No excess above the Standard Model background expectation is observed. Excluded mass regions for Majorana and Dirac neutrinos are presented using two approaches for interactions that violate lepton and lepton-flavor numbers. One approach uses an effective operator framework, the other approach is guided by the Left– Right Symmetric Model. The results described in this letter represent the most stringent limits to date on the masses of heavy neutrinos and W_Rbosons obtained in direct searches.

langue originale	Anglais
Numéro d'article	2056
journal	European Physical Journal C
Volume	72
Numéro de publication	7
Les DOIs	https://doi.org/10.1140/epjc/s10052-012-2056-4
état	Publié - 3 juil. 2012
Modification externe	Oui

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10.1140/epjc/s10052-012-2056-4

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@article{bc9ec9d7990b4de5a21cefdf763dfc6e,

title = "Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at √s =7 TeV with the ATLAS detector",

abstract = "This letter reports on a search for hypothetical heavy neutrinos, N, and right-handed gauge bosons, WR, in events with high transverse momentum objects which include two reconstructed leptons and at least one hadronic jet. The results were obtained from data corresponding to an integrated luminosity of 2.1 fb−1collected in proton–proton collisions at √ s = 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. No excess above the Standard Model background expectation is observed. Excluded mass regions for Majorana and Dirac neutrinos are presented using two approaches for interactions that violate lepton and lepton-flavor numbers. One approach uses an effective operator framework, the other approach is guided by the Left– Right Symmetric Model. The results described in this letter represent the most stringent limits to date on the masses of heavy neutrinos and WRbosons obtained in direct searches.",

author = "\{The ATLAS collaboration\} and G. Aad and B. Abbott and J. Abdallah and Abdelalim, \{A. A.\} and A. Abdesselam and O. Abdinov and B. Abi and M. Abolins and Zeid, \{O. S.Abou\} and H. Abramowicz and H. Abreu and E. Acerbi and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and Addy, \{T. N.\} and J. Adelman and M. Aderholz and S. Adomeit and P. Adragna and T. Adye and S. Aefsky and Aguilar-Saavedra, \{J. A.\} and M. Aharrouche and Ahlen, \{S. P.\} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and T. Akdogan and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and A. Akiyama and Alam, \{M. S.\} and Alam, \{M. A.\} and J. Albert and S. Albrand and M. Aleksa and Aleksandrov, \{I. N.\} and F. Alessandria and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and M. Aliev and G. Alimonti and Sauvan, \{J. B.\} and O. Simard",

note = "Publisher Copyright: {\textcopyright} CERN for the benefit of the ATLAS collaboration 2012.",

year = "2012",

month = jul,

day = "3",

doi = "10.1140/epjc/s10052-012-2056-4",

language = "English",

volume = "72",

journal = "European Physical Journal C",

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T1 - Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at √s =7 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdelalim, A. A.

AU - Abdesselam, A.

AU - Abdinov, O.

AU - Abi, B.

AU - Abolins, M.

AU - Zeid, O. S.Abou

AU - Abramowicz, H.

AU - Abreu, H.

AU - Acerbi, E.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Aderholz, M.

AU - Adomeit, S.

AU - Adragna, P.

AU - Adye, T.

AU - Aefsky, S.

AU - Aguilar-Saavedra, J. A.

AU - Aharrouche, M.

AU - Ahlen, S. P.

AU - Ahles, F.

AU - Ahmad, A.

AU - Ahsan, M.

AU - Aielli, G.

AU - Akdogan, T.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Akiyama, A.

AU - Alam, M. S.

AU - Alam, M. A.

AU - Albert, J.

AU - Albrand, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alessandria, F.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Aliev, M.

AU - Alimonti, G.

AU - Sauvan, J. B.

AU - Simard, O.

PY - 2012/7/3

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N2 - This letter reports on a search for hypothetical heavy neutrinos, N, and right-handed gauge bosons, WR, in events with high transverse momentum objects which include two reconstructed leptons and at least one hadronic jet. The results were obtained from data corresponding to an integrated luminosity of 2.1 fb−1collected in proton–proton collisions at √ s = 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. No excess above the Standard Model background expectation is observed. Excluded mass regions for Majorana and Dirac neutrinos are presented using two approaches for interactions that violate lepton and lepton-flavor numbers. One approach uses an effective operator framework, the other approach is guided by the Left– Right Symmetric Model. The results described in this letter represent the most stringent limits to date on the masses of heavy neutrinos and WRbosons obtained in direct searches.

AB - This letter reports on a search for hypothetical heavy neutrinos, N, and right-handed gauge bosons, WR, in events with high transverse momentum objects which include two reconstructed leptons and at least one hadronic jet. The results were obtained from data corresponding to an integrated luminosity of 2.1 fb−1collected in proton–proton collisions at √ s = 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. No excess above the Standard Model background expectation is observed. Excluded mass regions for Majorana and Dirac neutrinos are presented using two approaches for interactions that violate lepton and lepton-flavor numbers. One approach uses an effective operator framework, the other approach is guided by the Left– Right Symmetric Model. The results described in this letter represent the most stringent limits to date on the masses of heavy neutrinos and WRbosons obtained in direct searches.

UR - https://www.scopus.com/pages/publications/84865600140

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DO - 10.1140/epjc/s10052-012-2056-4

M3 - Article

AN - SCOPUS:84865600140

SN - 1434-6044

VL - 72

JO - European Physical Journal C

JF - European Physical Journal C

IS - 7

M1 - 2056

ER -

Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at √s =7 TeV with the ATLAS detector

Résumé

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