Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector

ATLAS Collaboration

doi:10.1103/PhysRevD.88.012001

Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector

ATLAS Collaboration

University of Freiburg
University of Bonn
University of Oklahoma
ICREA
Université Paris-Sud and CNRS/IN2P3
University of Geneva
Azerbaijan National Academy of Sciences
University of Amsterdam
Oklahoma State University
Michigan State University
University of Toronto
Tel Aviv University
CEA Saclay (Commissariat a lʼEnergie Atomique)
Stockholm University
The Oskar Klein Centre
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
King's College London
AGH University of Krakow
United States Department of Energy
Hampton University
Yale University
Ludwig Maximilian University of Munich
Didcot
Brandeis University
University of Granada
Laboratório de Instrumentação e Física Experimental de Partículas
University of Bern
Boston University
Stony Brook University
University of Texas at Dallas
University of Rome Tor Vergata
Lund University
The University of Tokyo
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Royal Holloway University of London
University of Victoria BC
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
Universidad Nacional de La Plata
CERN
Joint Institute for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
University of Udine
Humboldt University of Berlin
The University of Chicago
University of Birmingham
Lancaster University
Kobe University
University of Liverpool
University of Glasgow
University of Manchester
University of Naples Federico II
Weizmann Institute of Science
University of Copenhagen
Columbia University
High Energy Accelerator Research Organization, Tsukuba
Universidade Federal do Rio de Janeiro
Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
University of Lisbon
Heidelberg University
University of Milan
National and Kapodistrian University of Athens
Technische Universität Dresden
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Moscow Engineering Physics Institute
Slovak Academy of Sciences
Nagoya University
University of Oxford
SLAC National Accelerator Laboratory
Duke University
University of Montreal
German Electron Synchrotron
Bogazici University
University of Michigan, Ann Arbor
Johannes Gutenberg University Mainz
Universidad Autónoma de Madrid
Alikhanov Institute for Theoretical and Experimental Physics
University of Rome La Sapienza
University of Cambridge
Argonne National Laboratory
Comenius University
University of Illinois at Urbana-Champaign
Czech Technical University in Prague
University of Johannesburg
University of British Columbia
TRIUMF
Roma Tre University
University of California at Berkeley
Aristotle University of Thessaloniki
CAS - Institute of High Energy Physics
University College London
Charles University
Polish Academy of Sciences
University of Wisconsin-Madison
The University of Sydney
University of Melbourne
University of Genoa
Aix-Marseille Université and CNRS/IN2P3
Max Planck Institute for Physics (Werner Heisenberg Institute)
University of Wuppertal
Harvard University
University of Sussex
California State University Fresno
Laboratoire de Physique Nucléaire et de Hautes Energies
Tufts University
University of Washington
Gaziantep University
McGill University
Carleton University
Novosibirsk State University
University of Hassan II Casablanca
York University Toronto
University of Regina
CNRS/IN2P3 and Université de Savoie
Louisiana Tech University
University of Pisa
Radboud University Nijmegen
University of Edinburgh
University of Salento
University of Göttingen
University of Bologna
Belarus Academy of Sciences
Czech Academy of Sciences
Queen Mary University of London
University of Pittsburgh
Université Clermont Auvergne
Mohamed I University
University of Belgrade
University of Texas at Arlington
Tokyo Metropolitan University
University of Massachusetts
University of Oregon
University of Pennsylvania
Uppsala University
University of the Witwatersrand
Universidad Técnica Federico Santa Maria
Indiana University Bloomington
University of Bergen
University of Siegen
New York University
University of Oslo
TU Dortmund University
CSIC-UV - Instituto de Física Corpuscular (IFIC)
Ankara University
Northern Illinois University
Southern Methodist University
University of Calabria
University of Coimbra
Universidade Federal de Juiz de Fora
Dogus University
University of Alberta
Iowa State University
Nanjing University
Mohammed V University in Rabat
University of Arizona
Academia Sinica - Institute of Physics
University of Iowa
University of Ljubljana
University of Pavia
University of Naples Parthenope
Institute of Particle Physics
University of California at Irvine
University of Sheffield
Pontificia Universidad Católica de Chile
University of California at Santa Cruz
National University of Science and Technology POLITEHNICA Bucharest
West University of Timisoara
Simon Fraser University
Middle East Technical University
Technion-Israel Institute of Technology
Ivane Javakhishvili Tbilisi State University
Universidade Federal de São João del-Rei
NOVA University Lisbon
Universidade de São Paulo
Justus Liebig University Giessen
SUNY Albany
Cadi Ayyad University
University of Warwick
Petersburg Nuclear Physics Institute (PNPI)
Shandong University
Ohio State University
University of Würzburg
National Center for Energy, Nuclear Science and Technology
University of the Aegean
Lomonosov Moscow State University
Universidad de Buenos Aires
University of New Mexico
A. Alikhanian Yerevan Institute of Physics
Palacký University Olomouc
University of Cape Town
University of Science and Technology of China
The University of Osaka
University of Tsukuba
Shinshu University
Kyoto University
Institute of Science Tokyo
Adelaide University
KTH Royal Institute of Technology
University of Innsbruck
Kyushu University
Waseda University
University of Hamburg
Manhattan College
Sun Yat-Sen University
Universidad Antonio Nariño
National Institute of Science Education and Research
Moscow Institute of Physics and Technology
Hiroshima Institute of Technology
Okayama University
University of Minho
University of Texas at Austin
University of South Carolina
Wigner Research Centre for Physics
International School for Advanced Studies
National Institute for Research and Development of Isotopic and Molecular Technologies
CNRS/IN2P3
Jagiellonian University in Kraków
Nagasaki Institute of Applied Science
TOBB University of Economics and Technology
Kyoto University of Education
Ritsumeikan University
Massachusetts Institute of Technology
Tbilisi State University
Turkish Atomic Energy Authority
University of KwaZulu-Natal
Shanghai Jiao Tong University
Belarusian State University
Gazi University

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26 引用（Scopus）

摘要

A search has been performed for photons originating in the decay of a neutral long-lived particle, exploiting the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction of photons, as well as the calorimeter's excellent time resolution. The search has been made in the diphoton plus missing transverse energy final state, using the full data sample of 4.8 fb^-1 of 7 TeV proton-proton collisions collected in 2011 with the ATLAS detector at the LHC. No excess is observed above the background expected from Standard Model processes. The results are used to set exclusion limits in the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying with a lifetime in excess of 0.25 ns into a photon and a gravitino.

源语言	英语
文章编号	012001
期刊	Physical Review D - Particles, Fields, Gravitation and Cosmology
卷	88
期	1
DOI	https://doi.org/10.1103/PhysRevD.88.012001
出版状态	已出版 - 1 7月 2013
已对外发布	是

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10.1103/PhysRevD.88.012001

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@article{0d52231cd3b04d9789814a81b4fcdd47,

title = "Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector",

abstract = "A search has been performed for photons originating in the decay of a neutral long-lived particle, exploiting the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction of photons, as well as the calorimeter's excellent time resolution. The search has been made in the diphoton plus missing transverse energy final state, using the full data sample of 4.8 fb-1 of 7 TeV proton-proton collisions collected in 2011 with the ATLAS detector at the LHC. No excess is observed above the background expected from Standard Model processes. The results are used to set exclusion limits in the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying with a lifetime in excess of 0.25 ns into a photon and a gravitino.",

author = "\{ATLAS Collaboration\} and G. Aad and T. Abajyan and B. Abbott and J. Abdallah and \{Abdel Khalek\}, S. and Abdelalim, \{A. A.\} and O. Abdinov and R. Aben and B. Abi and M. Abolins and Abouzeid, \{O. S.\} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and Addy, \{T. N.\} and J. Adelman and S. Adomeit and T. Adye and S. Aefsky and Aguilar-Saavedra, \{J. A.\} and M. Agustoni and Ahlen, \{S. P.\} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and Alam, \{M. A.\} and J. Albert and S. Albrand and \{Alconada Verzini\}, \{M. J.\} 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 J. Alison and Allbrooke, \{B. M.M.\} and Allison, \{L. J.\} and L. Yuan",

year = "2013",

month = jul,

day = "1",

doi = "10.1103/PhysRevD.88.012001",

language = "英语",

volume = "88",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

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T1 - Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abajyan, T.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdelalim, A. A.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Abolins, M.

AU - Abouzeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Aefsky, S.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Ahlen, S. P.

AU - Ahles, F.

AU - Ahmad, A.

AU - Ahsan, M.

AU - Aielli, G.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alam, M. A.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

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 - Alison, J.

AU - Allbrooke, B. M.M.

AU - Allison, L. J.

AU - Yuan, L.

PY - 2013/7/1

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N2 - A search has been performed for photons originating in the decay of a neutral long-lived particle, exploiting the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction of photons, as well as the calorimeter's excellent time resolution. The search has been made in the diphoton plus missing transverse energy final state, using the full data sample of 4.8 fb-1 of 7 TeV proton-proton collisions collected in 2011 with the ATLAS detector at the LHC. No excess is observed above the background expected from Standard Model processes. The results are used to set exclusion limits in the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying with a lifetime in excess of 0.25 ns into a photon and a gravitino.

AB - A search has been performed for photons originating in the decay of a neutral long-lived particle, exploiting the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction of photons, as well as the calorimeter's excellent time resolution. The search has been made in the diphoton plus missing transverse energy final state, using the full data sample of 4.8 fb-1 of 7 TeV proton-proton collisions collected in 2011 with the ATLAS detector at the LHC. No excess is observed above the background expected from Standard Model processes. The results are used to set exclusion limits in the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying with a lifetime in excess of 0.25 ns into a photon and a gravitino.

UR - https://www.scopus.com/pages/publications/84881278349

U2 - 10.1103/PhysRevD.88.012001

DO - 10.1103/PhysRevD.88.012001

M3 - 文章

AN - SCOPUS:84881278349

SN - 1550-7998

VL - 88

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 1

M1 - 012001

ER -

Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector

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