Artículos de revistas
Measurement of differential cross sections for the production of top quark pairs and of additional jets in lepton + jets events from p p collisions at s = 13 TeV
Fecha
2018-06-15Registro en:
Physical Review D, v. 97, n. 11, 2018.
2470-0029
2470-0010
10.1103/PhysRevD.97.112003
2-s2.0-85050386361
Autor
Yerevan Physics Institute
Institut für Hochenergiephysik
Institute for Nuclear Problems
Universiteit Antwerpen
Vrije Universiteit Brussel
Université Libre de Bruxelles
Ghent University
Université Catholique de Louvain
Centro Brasileiro de Pesquisas Fisicas
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Estadual Paulista (UNESP)
Universidade Federal do ABC (UFABC)
Bulgarian Academy of Sciences
University of Sofia
Beihang University
Institute of High Energy Physics
Peking University
Tsinghua 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 Teilchenphysik
NCSR Demokritos
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
HBNI
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
Politecnico di Bari
INFN Sez. di Bari
Universita di Bari
Politenico di Bari
Università di Bologna
INFN Sez. di Bologna
Universita di Bologna
Università di Catania
INFN Sez. di Catania
Universita di Catania
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INFN Sez. di Firenze
Universita di Firenze
INFN Laboratori Nazionali di Frascati
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Universita di Genova
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Università di Milano-Bicocca
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Università di Napoli Federico II
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Universita di Padova
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Universita di Perugia
Scuola Normale Superiore di Pisa
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Universita di Pisa
Scuola Nor. Superiore di Pisa
Sapienza Università di Roma
INFN Sez. di Roma
Sapienza Universita di Roma
Università di Torino
INFN Sezione di Torino
Università Del Piemonte Orientale
Università di Trieste
INFN Sez. di Trieste
Universita di Trieste
Kyungpook 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
'Moscow Engineering Physics Institute' (MEPhI)
P.N. Lebedev Physical Institute
Lomonosov Moscow State University
Novosibirsk State University (NSU)
Institute for High Energy Physics of NRC Kurchatov Institute
National Research Tomsk Polytechnic University
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 - Institute for Particle Physics and Astrophysics (IPA)
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
Kharkov Institute of Physics and Technology
University of Bristol
Rutherford Appleton Laboratory
Imperial College
Brunel University
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Catholic University of America
University of Alabama
Boston University
Brown University
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Santa Barbara - Department of Physics
California Institute of Technology
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Cornell University
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University of Florida
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Riga Technical University
Institución
Resumen
Differential and double-differential cross sections for the production of top quark pairs in proton-proton collisions at s=13 TeV are measured as a function of kinematic variables of the top quarks and the top quark-antiquark (tt) system. In addition, kinematic variables and multiplicities of jets associated with the tt production are measured. This analysis is based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.8 fb-1. The measurements are performed in the lepton+jets decay channels with a single muon or electron and jets in the final state. The differential cross sections are presented at the particle level, within a phase space close to the experimental acceptance, and at the parton level in the full phase space. The results are compared to several standard model predictions that use different methods and approximations. The kinematic variables of the top quarks and the tt system are reasonably described in general, though none predict all the measured distributions. In particular, the transverse momentum distribution of the top quarks is more steeply falling than predicted. The kinematic distributions and multiplicities of jets are adequately modeled by certain combinations of next-to-leading-order calculations and parton shower models.