Search for second generation scalar leptoquarks in pp collisions at √s = 7 TeV with the ATLAS detector

The ATLAS Collaboration

doi:10.1140/epjc/s10052-012-2151-6

Search for second generation scalar leptoquarks in pp collisions at √s = 7 TeV with the ATLAS detector

The ATLAS Collaboration

CERN
University of Freiburg
University of Oklahoma
Institute for High Energy Physics
Université Paris-Sud and CNRS/IN2P3
Section de Physique
University of Geneva
University of Oxford
Azerbaijan National Academy of Sciences
Oklahoma State University
Department of Physics and Astronomy
Michigan State University
University of Toronto
Tel Aviv University
CEA Saclay (Commissariat a lʼEnergie Atomique)
National Institute for Nuclear Physics
University of Milan
Abdus Salam International Centre for Theoretical Physics
AGH University of Krakow
United States Department of Energy
Department of Physics
Hampton University
Yale University
Max Planck Institute for Physics (Werner Heisenberg Institute)
Ludwig Maximilian University of Munich
School of Physics and Astronomy
Queen Mary University of London
Didcot
Department of Physics
Brandeis University
Laboratório de Instrumentação e Física Experimental de Partículas
Departamento de Fisica Teorica y del Cosmos and CAFPE
University of Granada
Johannes Gutenberg University Mainz
Boston University
Departments of Physics & Astronomy and Chemistry
Stony Brook University
Physics Department
University of Texas at Dallas
University of Rome Tor Vergata
Department of Physics
Bogazici University
Fysiska Institutionen
Lund University
International Center for Elementary Particle Physics and Department of Physics
The University of Tokyo
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Kobe University
SUNY Albany
Department of Physics
Royal Holloway University of London
Department of Physics and Astronomy
University of Victoria BC
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
Joint Institute for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
Physics Department
National Technical University of Athens
Dipartimento di Chimica
University of Udine
Department of Physics
Humboldt University of Berlin

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89 引用（Scopus）

摘要

The results of a search for the production of second generation scalar leptoquarks are presented for final states consisting of either two muons and at least two jets or a muon plus missing transverse momentum and at least two jets. A total of 1.03 fb⁻¹ integrated luminosity of protonproton collision data produced by the Large Hadron Collider at √s = 7 TeV and recorded by the ATLAS detector is used for the search. The event yields in the signal regions are found to be consistent with the Standard Model background expectations. The production of second generation leptoquarks is excluded for a leptoquark mass m_LQ < 594 (685) GeV at 95 % confidence level, for a branching ratio of 0.5 (1.0) for leptoquark decay to a muon and a quark.

源语言	英语
期刊论文编号	2151
期刊	European Physical Journal C
卷	72
期	9
DOI	https://doi.org/10.1140/epjc/s10052-012-2151-6
出版状态	已出版 - 13 9月 2012
已对外发布	是

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10.1140/epjc/s10052-012-2151-6

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@article{b4cc2c2147a3473bac08529dde561428,

title = "Search for second generation scalar leptoquarks in pp collisions at √s = 7 TeV with the ATLAS detector",

abstract = "The results of a search for the production of second generation scalar leptoquarks are presented for final states consisting of either two muons and at least two jets or a muon plus missing transverse momentum and at least two jets. A total of 1.03 fb−1 integrated luminosity of protonproton collision data produced by the Large Hadron Collider at √s = 7 TeV and recorded by the ATLAS detector is used for the search. The event yields in the signal regions are found to be consistent with the Standard Model background expectations. The production of second generation leptoquarks is excluded for a leptoquark mass mLQ < 594 (685) GeV at 95 \% confidence level, for a branching ratio of 0.5 (1.0) for leptoquark decay to a muon and a quark.",

author = "\{The ATLAS Collaboration\} and G. Aad and B. Abbott and J. Abdallah and Khalek, \{S. Abdel\} 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 L. Yuan",

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

year = "2012",

month = sep,

day = "13",

doi = "10.1140/epjc/s10052-012-2151-6",

language = "英语",

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T1 - Search for second generation scalar leptoquarks 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 - Khalek, S. Abdel

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 - Yuan, L.

PY - 2012/9/13

Y1 - 2012/9/13

N2 - The results of a search for the production of second generation scalar leptoquarks are presented for final states consisting of either two muons and at least two jets or a muon plus missing transverse momentum and at least two jets. A total of 1.03 fb−1 integrated luminosity of protonproton collision data produced by the Large Hadron Collider at √s = 7 TeV and recorded by the ATLAS detector is used for the search. The event yields in the signal regions are found to be consistent with the Standard Model background expectations. The production of second generation leptoquarks is excluded for a leptoquark mass mLQ < 594 (685) GeV at 95 % confidence level, for a branching ratio of 0.5 (1.0) for leptoquark decay to a muon and a quark.

AB - The results of a search for the production of second generation scalar leptoquarks are presented for final states consisting of either two muons and at least two jets or a muon plus missing transverse momentum and at least two jets. A total of 1.03 fb−1 integrated luminosity of protonproton collision data produced by the Large Hadron Collider at √s = 7 TeV and recorded by the ATLAS detector is used for the search. The event yields in the signal regions are found to be consistent with the Standard Model background expectations. The production of second generation leptoquarks is excluded for a leptoquark mass mLQ < 594 (685) GeV at 95 % confidence level, for a branching ratio of 0.5 (1.0) for leptoquark decay to a muon and a quark.

UR - https://www.scopus.com/pages/publications/84867762840

U2 - 10.1140/epjc/s10052-012-2151-6

DO - 10.1140/epjc/s10052-012-2151-6

M3 - 文章

AN - SCOPUS:84867762840

SN - 1434-6044

VL - 72

JO - European Physical Journal C

JF - European Physical Journal C

IS - 9

M1 - 2151

ER -

Search for second generation scalar leptoquarks in pp collisions at √s = 7 TeV with the ATLAS detector

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