Measurement of J/ψ production cross-sections in pp collisions at s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s} $$\end{document} = 5 TeV

被引:0
作者
R. Aaij
A. S. W. Abdelmotteleb
C. Abellán Beteta
T. Ackernley
B. Adeva
M. Adinolfi
H. Afsharnia
C. Agapopoulou
C. A. Aidala
S. Aiola
Z. Ajaltouni
S. Akar
J. Albrecht
F. Alessio
M. Alexander
A. Alfonso Albero
Z. Aliouche
G. Alkhazov
P. Alvarez Cartelle
S. Amato
J. L. Amey
Y. Amhis
L. An
L. Anderlini
A. Andreianov
M. Andreotti
F. Archilli
A. Artamonov
M. Artuso
K. Arzymatov
E. Aslanides
M. Atzeni
B. Audurier
S. Bachmann
M. Bachmayer
J. J. Back
P. Baladron Rodriguez
V. Balagura
W. Baldini
J. Baptista Leite
M. Barbetti
R. J. Barlow
S. Barsuk
W. Barter
M. Bartolini
F. Baryshnikov
J. M. Basels
S. Bashir
G. Bassi
B. Batsukh
机构
[1] Centro Brasileiro de Pesquisas Físicas (CBPF),Center for High Energy Physics
[2] Universidade Federal do Rio de Janeiro (UFRJ),School of Physics State Key Laboratory of Nuclear Physics and Technology
[3] Tsinghua University,Institute of Particle Physics
[4] Institute Of High Energy Physics (IHEP),I. Physikalisches Institut
[5] Peking University,Fakultät Physik
[6] University of Chinese Academy of Sciences,Physikalisches Institut
[7] Central China Normal University,School of Physics
[8] Univ. Savoie Mont Blanc,ICCUB
[9] CNRS,Instituto Galego de Física de Altas Enerxías (IGFAE)
[10] IN2P3-LAPP,Physik
[11] Université Clermont Auvergne,Institut
[12] CNRS/IN2P3,H.H. Wills Physics Laboratory
[13] LPC,Cavendish Laboratory
[14] Aix Marseille Univ,Department of Physics
[15] CNRS/IN2P3,School of Physics and Astronomy
[16] CPPM,School of Physics and Astronomy
[17] Université Paris-Saclay,Oliver Lodge Laboratory
[18] CNRS/IN2P3,Department of Physics and Astronomy
[19] IJCLab,Department of Physics
[20] Laboratoire Leprince-Ringuet,School of Physics and Astronomy
[21] CNRS/IN2P3,Physics and Micro Electronic College
[22] Ecole Polytechnique,School of Physics and Technology
[23] Institut Polytechnique de Paris,Departamento de Fisica
[24] LPNHE,Institut für Physik
[25] Sorbonne Université,Van Swinderen Institute
[26] Paris Diderot Sorbonne Paris Cité,DS4DS, La Salle
[27] CNRS/IN2P3,Hangzhou Institute for Advanced Study
[28] RWTH Aachen University,P.N. Lebedev Physical Institute
[29] Technische Universität Dortmund,Department of Physics and Astronomy
[30] Max-Planck-Institut für Kernphysik (MPIK),undefined
[31] Ruprecht-Karls-Universität Heidelberg,undefined
[32] University College Dublin,undefined
[33] INFN Sezione di Bari,undefined
[34] INFN Sezione di Bologna,undefined
[35] INFN Sezione di Ferrara,undefined
[36] INFN Sezione di Firenze,undefined
[37] INFN Laboratori Nazionali di Frascati,undefined
[38] INFN Sezione di Genova,undefined
[39] INFN Sezione di Milano,undefined
[40] INFN Sezione di Milano-Bicocca,undefined
[41] INFN Sezione di Cagliari,undefined
[42] Universita degli Studi di Padova,undefined
[43] Universita e INFN,undefined
[44] Padova,undefined
[45] INFN Sezione di Pisa,undefined
[46] INFN Sezione di Roma La Sapienza,undefined
[47] INFN Sezione di Roma Tor Vergata,undefined
[48] Nikhef National Institute for Subatomic Physics,undefined
[49] Nikhef National Institute for Subatomic Physics and VU University Amsterdam,undefined
[50] AGH — University of Science and Technology,undefined
关键词
Hadron-Hadron scattering (experiments); Heavy quark production; QCD; Quarkonium;
D O I
10.1007/JHEP11(2021)181
中图分类号
学科分类号
摘要
The production cross-sections of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s} $$\end{document} = 5 TeV are measured using a data sample corresponding to an integrated luminosity of 9.13 ± 0.18 pb−1, collected by the LHCb experiment. The cross-sections are measured differentially as a function of transverse momentum, pT, and rapidity, y, and separately for J/ψ mesons produced promptly and from beauty hadron decays (nonprompt). With the assumption of unpolarised J/ψ mesons, the production cross-sections integrated over the kinematic range 0 < pT< 20 GeV/c and 2.0 < y < 4.5 areσpromptJ/ψ=8.154±0.010±0.283μb,σnonpromptJ/ψ=0.820±0.003±0.034μb,\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {\displaystyle \begin{array}{c}{\sigma}_{\mathrm{prompt}}\ J/\psi =8.154\pm 0.010\pm 0.283\ \upmu \mathrm{b},\\ {}{\sigma}_{\mathrm{nonprompt}}\ J/\psi =0.820\pm 0.003\pm 0.034\ \upmu \mathrm{b},\end{array}} $$\end{document}
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