Artículos de revistas
Measurement of the top quark mass in the dileptonic tt decay channel using the mass observables Mbl, MT2, and Mblν in pp collisions at √s = 8 TeV
Fecha
2017-08-01Registro en:
Physical Review D, v. 96, n. 3, 2017.
2470-0029
2470-0010
10.1103/PhysRevD.96.032002
2-s2.0-85048292309
Autor
Yerevan Physics Institute
Institut Für Hochenergiephysik
Institute for Nuclear Problems
National Centre for Particle and High Energy Physics
Universiteit Antwerpen
Vrije Universiteit Brussel
Université Libre de Bruxelles
Ghent University
Université Catholique de Louvain
Université de Mons
Centro Brasileiro de Pesquisas Fisicas
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Estadual Paulista (UNESP)
Institute for Nuclear Research and Nuclear Energy
University of Sofia
Beihang University
Institute of High Energy Physics
Peking University
Universidad de Los Andes
Mechanical Engineering and Naval Architecture
Faculty of Science
Institute Rudjer Boskovic
University of Cyprus
Charles University
Universidad San Francisco de Quito
Egyptian Network of High Energy Physics
National Institute of Chemical Physics and Biophysics
University of Helsinki
Helsinki Institute of Physics
Lappeenranta University of Technology
Université Paris-Saclay
IPHC UMR 7178
CNRS/IN2P3
Institut de Physique Nucléaire de Lyon
Georgian Technical University
Tbilisi State University
I. Physikalisches Institut
III. Physikalisches Institut A
III. Physikalisches Institut B
Deutsches Elektronen-Synchrotron
University of Hamburg
Institut Für Experimentelle Kernphysik
NCSR Demokritos
National and Kapodistrian University of Athens
National Technical University of Athens
University of Ioánnina
Eötvös Loránd University
Wigner Research Centre for Physics
Institute of Nuclear Research ATOMKI
University of Debrecen
Indian Institute of Science (IISc)
National Institute of Science Education and Research
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Indian Institute of Technology Madras
Bhabha Atomic Research Centre
Tata Institute of Fundamental Research-A
Tata Institute of Fundamental Research-B
Indian Institute of Science Education and Research (IISER)
Institute for Research in Fundamental Sciences (IPM)
University College Dublin
INFN Sezione di Bari
INFN Sezione di Bologna
INFN Sezione di Catania
INFN Sezione di Firenze
INFN Laboratori Nazionali di Frascati
Università di Genova
INFN Sezione di Milano-Bicocca
INFN Sezione di Napoli
INFN Sezione di Padova
INFN Sezione di Pavia
INFN Sezione di Perugia
INFN Sezione di Pisa
INFN Sezione di Roma
INFN Sezione di Torino
INFN Sezione di Trieste
Kyungpook National University
Chonbuk National University
Institute for Universe and Elementary Particles
Hanyang University
Korea University
Seoul National University
University of Seoul
Sungkyunkwan University
Vilnius University
Universiti Malaya
Centro de Investigacion y de Estudios Avanzados Del IPN
Universidad Iberoamericana
Benemerita Universidad Autonoma de Puebla
Universidad Autónoma de San Luis Potosí
University of Auckland
University of Canterbury
Quaid-I-Azam University
National Centre for Nuclear Research
University of Warsaw
Laboratório de Instrumentação e Física Experimental de Partículas
Joint Institute for Nuclear Research
Petersburg Nuclear Physics Institute
Institute for Nuclear Research
Institute for Theoretical and Experimental Physics
Moscow Institute of Physics and Technology
National Research Nuclear University 'Moscow Engineering Physics Institute' (MEPhI)
P. N. Lebedev Physical Institute
Lomonosov Moscow State University
Novosibirsk State University (NSU)
Institute for High Energy Physics
Vinca Institute of Nuclear Sciences
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
Universidad Autónoma de Madrid
Universidad de Oviedo
CSIC-Universidad de Cantabria
European Organization for Nuclear Research
Paul Scherrer Institut
ETH Zurich
Universität Zürich
National Central University
National Taiwan University (NTU)
Science and Art Faculty
Physics Department
Bogazici University
Istanbul Technical University
National Academy of Science of Ukraine
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Rutherford Appleton Laboratory
Imperial College
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Scuola Normale Superiore di Pisa
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Università Del Piemonte Orientale
Università di Trieste
Vienna University of Technology
Universidade Estadual de Campinas (UNICAMP)
Universidade Federal de Pelotas
Universidad de Antioquia
Suez University
British University in Egypt
Ain Shams University
Helwan University
Université de Haute Alsace
Brandenburg University of Technology
IIT Bhubaneswar
University of Visva-Bharati
Institute of Physics
University of Ruhuna
Isfahan University of Technology
Yazd University
Islamic Azad University
Università Degli Studi di Siena
International Islamic University of Malaysia
MOSTI
Consejo Nacional de Ciencia y Tecnología
Institute of Electronic Systems
St. Petersburg State Polytechnical University
Budker Institute of Nuclear Physics
Scuola Normale e Sezione Dell'INFN
Riga Technical University
Albert Einstein Center for Fundamental Physics
Gaziosmanpasa University
Adiyaman University
Istanbul Aydin University
Mersin University
Cag University
Piri Reis University
Ozyegin University
Izmir Institute of Technology
Marmara University
Kafkas University
Istanbul Bilgi University
Yildiz Technical University
Hacettepe University
University of Southampton
Instituto de Astrofísica de Canarias
Utah Valley University
Beykent University
Erzincan University
Istanbul
Texas AandM University at Qatar
Università di Catania
Institución
Resumen
A measurement of the top quark mass (Mt) in the dileptonic tt decay channel is performed using data from proton-proton collisions at a center-of-mass energy of 8 TeV. The data was recorded by the CMS experiment at the LHC and corresponds to an integrated luminosity of 19.7 ± 0.5 fb-1. Events are selected with two oppositely charged leptons (l = e, μ) and two jets identified as originating from b quarks. The analysis is based on three kinematic observables whose distributions are sensitive to the value of Mt. An invariant mass observable, Mbl, and a stransverse mass observable, MT2, are employed in a simultaneous fit to determine the value of Mt and an overall jet energy scale factor (JSF). A complementary approach is used to construct an invariant mass observable, Mblν, that is combined with MT2 to measure Mt. The shapes of the observables, along with their evolutions in Mt and JSF, are modeled by a nonparametric Gaussian process regression technique. The sensitivity of the observables to the value of Mt is investigated using a Fisher information density method. The top quark mass is measured to be 172.22 ± 0.18(stat)-0.93 +0.89 (syst) GeV.