Measurement of the top quark mass using charged particles in pp collisions at s =8 TeV

CMS Collaboration

doi:10.1103/PhysRevD.93.092006

Measurement of the top quark mass using charged particles in pp collisions at s =8 TeV

CMS Collaboration

Física

Yerevan Physics Institute
Institut für Hochenergiephysik der OeAW
TU Wien
Belarusian State University
University of Antwerp
Vrije Universiteit Brussel
Université Libre de Bruxelles
Peking University
Ghent University
Université catholique de Louvain
Institut Pluridisciplinaire Hubert Curien
Université de Mons
Centro Brasileiro de Pesquisas Fisicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Estadual Paulista Júlio de Mesquita Filho
CNRS
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Bulgarian Academy of Sciences
University of Sofia
Beihang University
Institute of High Energy Physics Chinese Academy of Science
Quaid-I-Azam University
Laboratoire Leprince-Ringuet
Vanderbilt University
Universidad de los Andes Colombia
University of Split
Faculty of Science, University of Split
Institute Rudjer Boskovic
University of Cyprus
Charles University
Joint Institute for Nuclear Research, Dubna
Egyptian Network of High Energy Physics
British University
Zewail City of Science and Technology
Ain Shams University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Helsinki Institute of Physics
Lappeenranta University of Technology
CEA/Saclay
Université de Haute-Alsace
CERN
IN2P3-CNRS
Universite Claude Bernard Lyon 1
Lomonosov Moscow State University
Georgian Technical University
Tbilisi State University
RWTH Aachen University
Deutsches Elektronen-Synchrotron (DESY)
University of Hamburg
Brandenburg University of Technology
Karlsruhe Institute of Technology
NCSR Demokritos
National and Kapodistrian University of Athens
University of Ioannina
Nuclear Physics Group
KFKI Research Institute for Particle and Nuclear Physics
Institute for Nuclear Research
University of Debrecen
National Institute of Science Education and Research
Indian Institute of Science Education and Research Bhopal
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Bhabha Atomic Research Centre
Tata Institute of Fundamental Research, Mumbai
Visva-Bharati University
Indian Institute of Science Education and Research Pune
Institute for Research for Fundamental Sciences
Isfahan University of Technology
University of Tehran
Islamic Azad University, Science and Research Branch
University College Dublin
INFN Sezione di Bari
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Polytechnic University of Bari
INFN Sezione di Bologna
University of Bologna
National Institute for Nuclear Physics
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Malaysian Nuclear Agency
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
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Universidad Iberoamericana (UIA)
Benemerita Universidad Autonoma de Puebla
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University of Auckland
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Petersburg Nuclear Physics Institute (PNPI)
St. Petersburg State Polytechnical University
University of Florida
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California Institute of Technology
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University of Belgrade
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ETH Zurich
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Izmir Institute of Technology
Bogazici University
Marmara University
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Yildiz Technical University
Istanbul Technical University
Hacettepe University
Institute for Scintillation Materials of National Academy of Science of Ukraine
NASU - Kharkov Institute of Physics and Technology
University of Bristol
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University of Southampton
Imperial College London
Texas AandM University
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Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

A novel technique for measuring the mass of the top quark that uses only the kinematic properties of its charged decay products is presented. Top quark pair events with final states with one or two charged leptons and hadronic jets are selected from the data set of 8 TeV proton-proton collisions, corresponding to an integrated luminosity of 19.7 fb-1. By reconstructing secondary vertices inside the selected jets and computing the invariant mass of the system formed by the secondary vertex and an isolated lepton, an observable is constructed that is sensitive to the top quark mass that is expected to be robust against the energy scale of hadronic jets. The main theoretical systematic uncertainties, concerning the modeling of the fragmentation and hadronization of b quarks and the reconstruction of secondary vertices from the decays of b hadrons, are studied. A top quark mass of 173.68±0.20(stat)-0.97+1.58(syst) GeV is measured. The overall systematic uncertainty is dominated by the uncertainty in the b quark fragmentation and the modeling of kinematic properties of the top quark.

Original language	English
Article number	092006
Journal	Physical Review D
Volume	93
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.93.092006
State	Published - 18 May 2016

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10.1103/PhysRevD.93.092006

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@article{3d39f99b67d24378aa7ced4bbdbbafec,

title = "Measurement of the top quark mass using charged particles in pp collisions at s =8 TeV",

abstract = "A novel technique for measuring the mass of the top quark that uses only the kinematic properties of its charged decay products is presented. Top quark pair events with final states with one or two charged leptons and hadronic jets are selected from the data set of 8 TeV proton-proton collisions, corresponding to an integrated luminosity of 19.7 fb-1. By reconstructing secondary vertices inside the selected jets and computing the invariant mass of the system formed by the secondary vertex and an isolated lepton, an observable is constructed that is sensitive to the top quark mass that is expected to be robust against the energy scale of hadronic jets. The main theoretical systematic uncertainties, concerning the modeling of the fragmentation and hadronization of b quarks and the reconstruction of secondary vertices from the decays of b hadrons, are studied. A top quark mass of 173.68±0.20(stat)-0.97+1.58(syst) GeV is measured. The overall systematic uncertainty is dominated by the uncertainty in the b quark fragmentation and the modeling of kinematic properties of the top quark.",

author = "\{CMS Collaboration\} and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and M. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and N. Rad and B. Rahbaran and H. Rohringer and J. Schieck and J. Strauss and W. Treberer-Treberspurg and W. Waltenberger and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and A. Knutsson and J. Lauwers and S. Luyckx and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and \{Van Spilbeeck\}, A. and \{Abu Zeid\}, S. and \{Carrera Jarrin\}, E.",

note = "Publisher Copyright: {\textcopyright} 2016 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the »http://creativecommons.org/licenses/by/3.0/» Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2016",

month = may,

day = "18",

doi = "10.1103/PhysRevD.93.092006",

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T1 - Measurement of the top quark mass using charged particles in pp collisions at s =8 TeV

AU - CMS Collaboration

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - König, A.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rad, N.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Strauss, J.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Lauwers, J.

AU - Luyckx, S.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Abu Zeid, S.

AU - Carrera Jarrin, E.

N1 - Publisher Copyright: © 2016 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the »http://creativecommons.org/licenses/by/3.0/» Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2016/5/18

Y1 - 2016/5/18

N2 - A novel technique for measuring the mass of the top quark that uses only the kinematic properties of its charged decay products is presented. Top quark pair events with final states with one or two charged leptons and hadronic jets are selected from the data set of 8 TeV proton-proton collisions, corresponding to an integrated luminosity of 19.7 fb-1. By reconstructing secondary vertices inside the selected jets and computing the invariant mass of the system formed by the secondary vertex and an isolated lepton, an observable is constructed that is sensitive to the top quark mass that is expected to be robust against the energy scale of hadronic jets. The main theoretical systematic uncertainties, concerning the modeling of the fragmentation and hadronization of b quarks and the reconstruction of secondary vertices from the decays of b hadrons, are studied. A top quark mass of 173.68±0.20(stat)-0.97+1.58(syst) GeV is measured. The overall systematic uncertainty is dominated by the uncertainty in the b quark fragmentation and the modeling of kinematic properties of the top quark.

AB - A novel technique for measuring the mass of the top quark that uses only the kinematic properties of its charged decay products is presented. Top quark pair events with final states with one or two charged leptons and hadronic jets are selected from the data set of 8 TeV proton-proton collisions, corresponding to an integrated luminosity of 19.7 fb-1. By reconstructing secondary vertices inside the selected jets and computing the invariant mass of the system formed by the secondary vertex and an isolated lepton, an observable is constructed that is sensitive to the top quark mass that is expected to be robust against the energy scale of hadronic jets. The main theoretical systematic uncertainties, concerning the modeling of the fragmentation and hadronization of b quarks and the reconstruction of secondary vertices from the decays of b hadrons, are studied. A top quark mass of 173.68±0.20(stat)-0.97+1.58(syst) GeV is measured. The overall systematic uncertainty is dominated by the uncertainty in the b quark fragmentation and the modeling of kinematic properties of the top quark.

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U2 - 10.1103/PhysRevD.93.092006

DO - 10.1103/PhysRevD.93.092006

M3 - Artículo

AN - SCOPUS:84971207143

SN - 2470-0010

VL - 93

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092006

ER -

Measurement of the top quark mass using charged particles in pp collisions at s =8 TeV

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