Search for pair-produced long-lived neutral particles decaying to jets in the ATLAS hadronic calorimeter in pp collisions at s=8TeV

ATLAS Collaboration

doi:10.1016/j.physletb.2015.02.015

Search for pair-produced long-lived neutral particles decaying to jets in the ATLAS hadronic calorimeter in pp collisions at s=8TeV

ATLAS Collaboration

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Aix-Marseille University - CNRS
University of Oklahoma
Academia Sinica Taipei
Laboratoire de l'Accélérateur Linéaire
Azerbaijan Academy of Sciences
University of Amsterdam
Oklahoma State University
Michigan State University
University of Toronto
Tel Aviv University
Technion - Israel Institute of Technology
European Organization for Nuclear Research
Stockholm University
Oskar Klein Centre
INFN- Sezione di Trieste
ICTP
King's College London
Univ of Mining and Metallurgy
Brookhaven National Laboratory
Yale University
University of Munich
Rutherford Appleton Laboratory
University of Belgrade
Laboratório de Instrumentacão e Física Experimental de Partículas
University of Granada
University of Bern
Boston University
Joint Inst. for Nuclear Research
INFN Sezione di Roma Tor Vergata
University of Rome Tor Vergata
Lund University
University of Tokyo
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
DIBINEM, Alma Mater Studiorum, University of Bologna
University of Victoria
University of Grenoble Alpes
Universidad Nacional de la Plata
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Geneva
National Technical University of Athens
Univ.́ degli Studi di Udine
INFN Sezione di Milano
University of Chicago
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Department of Physics, Lancaster University
University of Liverpool
INFN Sezione di Napoli
Università di Napoli Federico II
Niels Bohr Institutet
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Queen Mary University of London
Columbia University
High Energy Accelerator Research Organization (KEK)
Federal University of Rio de Janeiro
Brandeis University
University of Michigan, Ann Arbor
University of Coimbra
University of Lisboa
University of Freiburg
University of Sheffield
Heidelberg University
University of Milan
University of Athens
Technische Universität Dresden
Budker Institute of Nuclear Physics (SB RAS)
Novosibirsk State University
Dept. d'Estructura I Constituents De La Matèria and IFAE
INFN, Laboratori Nazionali Di Frascati
National Research Nuclear University MEPhI
Institute of Experimental Physics Slovak Academy of Sciences
Sezione INFN di Roma La Sapienza
University of Oxford
Stanford University
Duke University
Université de Montréal
Deutsches Elektronen-Synchrotron (DESY)
Bogazici University
Universidad Autónoma de Madrid
University of Cambridge
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ITEP
Argonne National Laboratory
Comenius University
University of Illinois at Urbana-Champaign
University of Siegen
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University of Johannesburg
TRIUMF
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Commissariat A l'Énergie Atomique et Aux Énergies Alternatives, Centre de Saclay, IRFU
Aristotle University of Thessaloniki
Universita La Sapienza
Institute of High Energy Physics Chinese Academy of Science
Charles University
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of Wisconsin-Madison
Bergische Universität Wuppertal
Weizmann Institute of Science Israel
University of Melbourne
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Max-Planck-Institut für Physik
Lawrence Berkeley National Laboratory
Université de Savoie
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Hassan II University of Casablanca
York University
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Louisiana Tech University
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Radboud University Nijmegen
University of Edinburgh
University of Pittsburgh
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University of Sydney
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Natl. Academy of Sciences of Belarus
Institute of Physics of the Czech Academy of Sciences
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University of Manchester
University at Albany
Université Blaise Pascal
University Mohammed I
University of Texas at Arlington
Tokyo Metropolitan University
University of Oregon
University of Pennsylvania School of Arts and Sciences
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Universidad Técnica Federico Santa María
Indiana University Bloomington
University of Bergen
Simon Fraser University
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pro3dure medical GmbH
University of Alberta
University of Valencia
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Iowa State University
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Nanjing University
Kobe University
University Mohammed V in Rabat
University of Arizona
Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
Palacky University
Univ. of Ljubljana
Laboratory for Thermal Engineering and Energy
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
University of Pavia
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Tbilisi State University
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Faculté Des Sciences-Semlalia
Osaka University
Petersburg Nuclear Phys. Inst.
St. Petersburg Technical University
University of British Columbia
Chinese University of Hong Kong
Medical University Innsbruck
Ohio State University
University of Science and Technology of China
National Center for Energy Sciences and Nuclear Techniques
Humboldt-Universität zu Berlin
University of the Aegean
Centro de Física Nuclear Universidade de Lisboa
University of New Mexico
University of Salento
Technology Department
A.I. Alikhanyan National Science Laboratory (YerPhi)
University of Cape Town
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University of Adelaide
Javakhishvili Tbilisi State University
Ilia State University (ISU)
Center for Autonomous Systems
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Ochanomizu University
Manhattan College
Shanghai Jiao Tong University
Universidad Antonio Nariño
National Institute of Science Education and Research
Iowa University
Hampton University
Moscow Institute of Physics and Technology
Hiroshima Institute of Technology
Okayama University
PT Government Associated Laboratory, University of Minho
University of Buenos Aires
Jagiellonian University
Scuola Internazionale Superiore di Studi Avanzati
National Institute for R&D of Isotopic and Molecular Technologies
University of South Carolina
CNRS/IN2P3 and Université Paris 11
University of Würzburg
Sun Yat-Sen University
Nagasaki Institute of Applied Science
TOBB University of Economics and Technology
Kyoto University of Education
Ritsumeikan University Biwako-Kusatsu Campus
Massachusetts Institute of Technology
Wigner Research Centre for Physics
Ankara Nucl. Res. and Train. Center
Universität Hamburg
University of KwaZulu-Natal
National Scientific and Educational Centre for Particle and High Energy Physics
Gazi University
University of Malaya

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60 Scopus citations

Abstract

The ATLAS detector at the Large Hadron Collider at CERN is used to search for the decay of a scalar boson to a pair of long-lived particles, neutral under the Standard Model gauge group, in 20.3fb-1 of data collected in proton-proton collisions at s=8TeV. This search is sensitive to long-lived particles that decay to Standard Model particles producing jets at the outer edge of the ATLAS electromagnetic calorimeter or inside the hadronic calorimeter. No significant excess of events is observed. Limits are reported on the product of the scalar boson production cross section times branching ratio into long-lived neutral particles as a function of the proper lifetime of the particles. Limits are reported for boson masses from 100 GeV to 900 GeV, and a long-lived neutral particle mass from 10 GeV to 150 GeV.

Original language	English
Pages (from-to)	15-34
Number of pages	20
Journal	Physics Letters B
Volume	743
DOIs	https://doi.org/10.1016/j.physletb.2015.02.015
State	Published - 9 Apr 2015
Externally published	Yes

Keywords

High-energy collider experiment
Long-lived neutral particle
New physics

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10.1016/j.physletb.2015.02.015

Cite this

@article{46998c2bb42e49dd93a22ba056d0155f,

title = "Search for pair-produced long-lived neutral particles decaying to jets in the ATLAS hadronic calorimeter in pp collisions at s=8TeV",

abstract = "The ATLAS detector at the Large Hadron Collider at CERN is used to search for the decay of a scalar boson to a pair of long-lived particles, neutral under the Standard Model gauge group, in 20.3fb-1 of data collected in proton-proton collisions at s=8TeV. This search is sensitive to long-lived particles that decay to Standard Model particles producing jets at the outer edge of the ATLAS electromagnetic calorimeter or inside the hadronic calorimeter. No significant excess of events is observed. Limits are reported on the product of the scalar boson production cross section times branching ratio into long-lived neutral particles as a function of the proper lifetime of the particles. Limits are reported for boson masses from 100 GeV to 900 GeV, and a long-lived neutral particle mass from 10 GeV to 150 GeV.",

keywords = "High-energy collider experiment, Long-lived neutral particle, New physics",

author = "\{ATLAS Collaboration\} and G. Aad and B. Abbott and J. Abdallah and \{Abdel Khalek\}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, \{O. S.\} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and J. Adelman and S. Adomeit and T. Adye and T. Agatonovic-Jovin and Aguilar-Saavedra, \{J. A.\} and M. Agustoni and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and Alberghi, \{G. L.\} and J. Albert and S. Albrand and \{Alconada Verzini\}, \{M. J.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Allbrooke, \{B. M.M.\} and Allison, \{L. J.\} and Allport, \{P. P.\} and A. Aloisio and A. Alonso and F. Alonso and L. Heinrich",

note = "Publisher Copyright: {\textcopyright} 2015.",

year = "2015",

month = apr,

day = "9",

doi = "10.1016/j.physletb.2015.02.015",

language = "English",

volume = "743",

pages = "15--34",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Search for pair-produced long-lived neutral particles decaying to jets in the ATLAS hadronic calorimeter in pp collisions at s=8TeV

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Abolins, M.

AU - AbouZeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Agatonovic-Jovin, T.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Alimonti, G.

AU - Alio, L.

AU - Alison, J.

AU - Allbrooke, B. M.M.

AU - Allison, L. J.

AU - Allport, P. P.

AU - Aloisio, A.

AU - Alonso, A.

AU - Alonso, F.

AU - Heinrich, L.

PY - 2015/4/9

Y1 - 2015/4/9

N2 - The ATLAS detector at the Large Hadron Collider at CERN is used to search for the decay of a scalar boson to a pair of long-lived particles, neutral under the Standard Model gauge group, in 20.3fb-1 of data collected in proton-proton collisions at s=8TeV. This search is sensitive to long-lived particles that decay to Standard Model particles producing jets at the outer edge of the ATLAS electromagnetic calorimeter or inside the hadronic calorimeter. No significant excess of events is observed. Limits are reported on the product of the scalar boson production cross section times branching ratio into long-lived neutral particles as a function of the proper lifetime of the particles. Limits are reported for boson masses from 100 GeV to 900 GeV, and a long-lived neutral particle mass from 10 GeV to 150 GeV.

AB - The ATLAS detector at the Large Hadron Collider at CERN is used to search for the decay of a scalar boson to a pair of long-lived particles, neutral under the Standard Model gauge group, in 20.3fb-1 of data collected in proton-proton collisions at s=8TeV. This search is sensitive to long-lived particles that decay to Standard Model particles producing jets at the outer edge of the ATLAS electromagnetic calorimeter or inside the hadronic calorimeter. No significant excess of events is observed. Limits are reported on the product of the scalar boson production cross section times branching ratio into long-lived neutral particles as a function of the proper lifetime of the particles. Limits are reported for boson masses from 100 GeV to 900 GeV, and a long-lived neutral particle mass from 10 GeV to 150 GeV.

KW - High-energy collider experiment

KW - Long-lived neutral particle

KW - New physics

UR - https://www.scopus.com/pages/publications/84923260857

U2 - 10.1016/j.physletb.2015.02.015

DO - 10.1016/j.physletb.2015.02.015

M3 - Article

AN - SCOPUS:84923260857

SN - 0370-2693

VL - 743

SP - 15

EP - 34

JO - Physics Letters B

JF - Physics Letters B

ER -

Search for pair-produced long-lived neutral particles decaying to jets in the ATLAS hadronic calorimeter in pp collisions at s=8TeV

Abstract

Keywords

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