Artículos de revistas
Measurement of the triple-differential dijet cross section in proton-proton collisions at √s=8TeV and constraints on parton distribution functions
Fecha
2017-11-01Registro en:
European Physical Journal C, v. 77, n. 11, 2017.
1434-6052
1434-6044
10.1140/epjc/s10052-017-5286-7
2-s2.0-85033667421
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
University of Split
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
Université Paris-Saclay
IPHC UMR 7178
CNRS/IN2P3
CNRS-IN2P3
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
Politecnico di Bari
Università di Bologna
Università di Catania
Università di Firenze
INFN Laboratori Nazionali di Frascati
Università di Genova
Università di Milano-Bicocca
Università G. Marconi
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Scuola Normale Superiore di Pisa
Sapienza Università di Roma
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Hanyang University
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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
University of Belgrade
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)
Chulalongkorn University
Cukurova University
Middle East Technical University
Bogazici University
Istanbul Technical University
Institute for Scintillation Materials of National Academy of Science of Ukraine
Kharkov Institute of Physics and Technology
University of Bristol
Rutherford Appleton Laboratory
Imperial College
Brunel University
Baylor University
Catholic University of America
The University of Alabama
Boston University
Brown University
University of California
California Institute of Technology
Carnegie Mellon University
University of Colorado Boulder
Cornell University
Fairfield University
Fermi National Accelerator Laboratory
University of Florida
Florida International University
Florida State University
Florida Institute of Technology
University of Illinois at Chicago (UIC)
The University of Iowa
Johns Hopkins University
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Kansas State University
Lawrence Livermore National Laboratory
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Riga Technical University
Institución
Resumen
A measurement is presented of the triple-differential dijet cross section at a centre-of-mass energy of 8TeV using 19.7fb-1 of data collected with the CMS detector in proton-proton collisions at the LHC. The cross section is measured as a function of the average transverse momentum, half the rapidity separation, and the boost of the two leading jets in the event. The cross section is corrected for detector effects and compared to calculations in perturbative quantum chromodynamics at next-to-leading order accuracy, complemented with electroweak and nonperturbative corrections. New constraints on parton distribution functions are obtained and the inferred value of the strong coupling constant is αS(MZ)=0.1199±0.0015(exp)-0.0020+0.0031(theo), where MZ is the mass of the Z boson.