Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at √s = 7TeV

ATLAS Collaboration

doi:10.1140/epjc/s10052-015-3373-1

Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at √s = 7TeV

ATLAS Collaboration

Aix Marseille Université
University of Oklahoma
Academia Sinica, Institute Of Physics
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
Abdus Salam International Centre for Theoretical Physics
King's College London
Agh University of Science and Technology Faculty of Computer Science
Brookhaven National Laboratory
Yale University
Universität München
Rutherford Appleton Laboratory
University of Belgrade
Lisboa
University of Granada
University of Bern
Boston University
Joint Institute for Nuclear Research, Dubna
INFN Roma Tor Vergata
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Lund University
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P.N. Lebedev Physical Institute of the Russian Academy of Sciences
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University of Victoria
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Instituto de Física La Plata
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Geneva
National Technical University of Athens
and Physics University of Udine
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University of Chicago
University of Birmingham
Lancaster University
University of Liverpool
University of Manchester
Universités Paris VI and VII
University of Cambridge
Université Savoie Mont Blanc
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University of Naples Federico II
Niels Bohr Institutet
Queen Mary University of London
Columbia University
High Energy Accelerator Research Organization (KEK)
Instituto de Biofisica da UFRJ
Brandeis University
University of Michigan, Ann Arbor
University of Coimbra
Faculdade de Ciências, Universidade de Lisboa
University of Freiburg
The University of Sheffield
University of Heidelberg
University of Milano
University of Athens
Technical University Dresden
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
LNF-INFN
National Research Nuclear University MEPhI
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University of Oxford
Stanford Linear Accelerator Center
Duke University
Universite de Montreal
c/o DESY
Bogazici University
Universidad Autónoma de Madrid
University Bonn
Institute for Theoretical and Experimental Physics
Argonne National Laboratory
Comenius University
University of Illinois
Universität Siegen
Czech Technical University in Prague
University of Johannesburg
TRIUMF
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Universite Paris-Saclay
Aristotle University of Thessaloniki
University of Rome
Institute of High Energy Physics, Chinese Academy of Sciences
Charles University
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Bergische Universität Gesamthochschule Wuppertal
Weizmann Institute of Science Israel
University of Melbourne
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Max-Planck-Institut für Physik
Ernest Orlando Lawrence Berkeley National Laboratory
Harvard University
University of Sussex
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University of Warwick
Gaziantep University
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University of Alberta
University of Valencia
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Southern Methodist University
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Pontificia Universidad Católica de Chile
Federal University of Juiz de Fora (UFJF)
Dogus University
Tomsk State University
Iowa State University
Shandong University
Nanjing University
Kobe University
Faculté des Sciences Rabat
University of Arizona
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Palacky University Olomouc
University of Ljubljana
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Long Beach VA and University of California
New York University
Tbilisi State University
Federal University of Sao Joao del Rei (UFSJ)
Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa
University of São Paulo
Justus-Liebig-Universität Giessen
Cadi Ayyad University
Osaka University
Petersburg Nuclear Physics Institute (PNPI)
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University of British Columbia
The Chinese University of Hong Kong
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Hampton University
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Hiroshima Institute of Technology
Okayama University
Universidade de Minho
Universidad de Buenos Aires
Jagiellonian University
International School of Advanced Studies
National Institute for Research and Development of Isotopic and Molecular Technologies
University of South Carolina
Université Paris-Sud
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
Turkish Atomic Energy Authority
Universität Hamburg
University of KwaZulu-Natal
National Centre for Particle and High Energy Physics
Gazi University
University Malaya

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

Résumé

The mass of the top quark is measured in a data set corresponding to 4.6 fb^-1 of proton–proton collisions with centre-of-mass energy √ = 7TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top–antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b-quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of m_t = 175.1 ± 1.4 (stat.) ± 1.2 (syst.) GeV.

langue originale	Anglais
Numéro d'article	158
Pages (de - à)	1-26
Nombre de pages	26
journal	European Physical Journal C
Volume	75
Numéro de publication	4
Les DOIs	https://doi.org/10.1140/epjc/s10052-015-3373-1
état	Publié - 30 avr. 2015
Modification externe	Oui

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10.1140/epjc/s10052-015-3373-1

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@article{ae8a671f42594f1eb76d739f4f544b54,

title = "Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at √s = 7TeV",

abstract = "The mass of the top quark is measured in a data set corresponding to 4.6 fb-1 of proton–proton collisions with centre-of-mass energy √ = 7TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top–antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b-quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of mt = 175.1 ± 1.4 (stat.) ± 1.2 (syst.) GeV.",

keywords = "ATLAS, Fully hadronic, LHC, Proton–proton collisions, Top quark, Top-quark mass",

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 J. Almond and O. Davignon and T. Mueller and O. Simard",

note = "Publisher Copyright: {\textcopyright} 2015, CERN for the benefit of the ATLAS Collaboration.",

year = "2015",

month = apr,

day = "30",

doi = "10.1140/epjc/s10052-015-3373-1",

language = "English",

volume = "75",

pages = "1--26",

journal = "European Physical Journal C",

issn = "1434-6044",

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T1 - Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at √s = 7TeV

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 - Almond, J.

AU - Davignon, O.

AU - Mueller, T.

AU - Simard, O.

PY - 2015/4/30

Y1 - 2015/4/30

N2 - The mass of the top quark is measured in a data set corresponding to 4.6 fb-1 of proton–proton collisions with centre-of-mass energy √ = 7TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top–antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b-quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of mt = 175.1 ± 1.4 (stat.) ± 1.2 (syst.) GeV.

AB - The mass of the top quark is measured in a data set corresponding to 4.6 fb-1 of proton–proton collisions with centre-of-mass energy √ = 7TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top–antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b-quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of mt = 175.1 ± 1.4 (stat.) ± 1.2 (syst.) GeV.

KW - ATLAS

KW - Fully hadronic

KW - LHC

KW - Proton–proton collisions

KW - Top quark

KW - Top-quark mass

UR - https://www.scopus.com/pages/publications/84928745950

U2 - 10.1140/epjc/s10052-015-3373-1

DO - 10.1140/epjc/s10052-015-3373-1

M3 - Article

AN - SCOPUS:84928745950

SN - 1434-6044

VL - 75

SP - 1

EP - 26

JO - European Physical Journal C

JF - European Physical Journal C

IS - 4

M1 - 158

ER -

Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at √s = 7TeV

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