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Measurement of ψ(2 S) production cross-sections in proton-proton collisions at √s=7 and 13TeV

  • LHCb Collaboration
  • European Organization for Nuclear Research
  • Science Park 105
  • University of Zurich
  • Universidade de Santiago de Compostela
  • University of Bristol
  • University of Michigan, Ann Arbor
  • Clermont-Auvergne University
  • University of Cincinnati
  • LNF-INFN
  • University of Dortmund
  • University of Glasgow
  • University of Barcelona
  • Petersburg Nuclear Physics Institute (PNPI)
  • Imperial College London
  • Instituto de Biofisica da UFRJ
  • INFN
  • Laboratoire de l'Accélérateur Linéaire
  • Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
  • ENAC-IIC-GEL
  • Sezione INFN di Ferrara
  • University of Maryland, College Park
  • Aix Marseille Université
  • Kurchatov Institute
  • Syracuse University
  • Yandex School of Data Analysis
  • Sezione INFN di Cagliari
  • University of Heidelberg
  • University of Warwick
  • University of Manchester
  • Sezione di Genova
  • National University of Science and Technology “MISIS”
  • National Centre for Nuclear Research (NCBJ)
  • Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
  • Centro Brasileiro de Pesquisas Fisicas
  • University of Chinese Academy of Sciences
  • INFN Sezione di Milano-Bicocca
  • University of Milano-Bicocca
  • Institute for Theoretical and Experimental Physics
  • Sorbonne Université
  • RWTH Aachen University
  • Moscow State University
  • INFN Sezione di Bologna
  • University of Cambridge
  • Institute for Nuclear Physics
  • University of Birmingham
  • University of Modena and Reggio Emilia
  • University of Oxford
  • Sezione di Roma
  • Massachusetts Institute of Technology
  • Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
  • Novosibirsk State University
  • University of Liverpool
  • Wuhan University
  • University of Ferrara
  • Universitat Ramon LLull - CSIC
  • University of Bologna
  • INFN Roma Tor Vergata
  • University of Pisa
  • LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
  • University of Edinburgh
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • MST-8, Los Alamos National Laboratory
  • INFN Sezione di Bari
  • Università degli studi di Bari Aldo Moro
  • Max-Planck-Institut für Kernphysik
  • Agh University of Science and Technology Faculty of Computer Science
  • National Research University
  • Central China Normal University
  • INFN Sezione di Trieste
  • Kharkov Institute of Physics and Technology
  • CCLRC Rutherford Appleton Laboratory
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • University of Genoa
  • Sezione INFN di Milano
  • University of Milano
  • Tsinghua University
  • University of Valencia
  • Pontifícia Universidade Católica do Rio de Janeiro
  • Universidade Federal Do Triângulo Mineiro (UFTM)
  • Universität Rostock
  • Univ. Mentouri de Constantine
  • Vrije Universiteit Amsterdam
  • Institute of Nuclear Research, National Academy of Sciences in Ukraine
  • Lanzhou University
  • Institute of High Energy Physics, Chinese Academy of Sciences
  • Kurchatov Institute
  • South China Normal University
  • University of Padova
  • Universitá di Cagliari
  • Iligan Institute of Technology (IIT)
  • University College Dublin
  • Universidad Nacional de Colombia
  • Scuola Normale Superiore di Pisa
  • Hanoi University of Science and Technology
  • ICS/University of Groningen
  • National Research Tomsk Polytechnic University
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • University of Rome “Tor Vergata”
  • University of Rome
  • Università degli Studi della Basilicata
  • University of Urbino Carlo Bo
  • Hunan University
  • Shaanxi Normal University

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

The cross-sections of ψ(2 S) meson production in proton-proton collisions at s=13TeV are measured with a data sample collected by the LHCb detector corresponding to an integrated luminosity of 275pb-1. The production cross-sections for prompt ψ(2 S) mesons and those for ψ(2 S) mesons from b-hadron decays (ψ(2S)-from-b) are determined as functions of the transverse momentum, pT, and the rapidity, y, of the ψ(2 S) meson in the kinematic range 2<pT<20GeV/c and 2.0 < y< 4.5. The production cross-sections integrated over this kinematic region are σ(promptψ(2S),13TeV)=1.430±0.005(stat)±0.099(syst)μb,σ(ψ(2S)-from-b,13TeV)=0.426±0.002(stat)±0.030(syst)μb.A new measurement of ψ(2 S) production cross-sections in pp collisions at s=7TeV is also performed using data collected in 2011, corresponding to an integrated luminosity of 614pb-1. The integrated production cross-sections in the kinematic range 3.5<pT<14GeV/c and 2.0 < y< 4.5 are σ(promptψ(2S),7TeV)=0.471±0.001(stat)±0.025(syst)μb,σ(ψ(2S)-from-b,7TeV)=0.126±0.001(stat)±0.008(syst)μb.All results show reasonable agreement with theoretical calculations.

langue originaleAnglais
Numéro d'article185
journalEuropean Physical Journal C
Volume80
Numéro de publication3
Les DOIs
étatPublié - 1 mars 2020

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