Measurement of the J/ψ pair production cross-section in pp collisions at s√=13 TeV
Jazyk: | angličtina |
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Rok vydání: | 2017 |
Předmět: |
ROOT S=1.8 TEV
(P)OVER-BAR-P COLLISIONS P(P)OVER-BAR COLLISIONS MESON PRODUCTION Quarkonium OCTET QUARKONIA PRODUCTION HEAVY QUARKONIUM PSI-PSI-PRODUCTION Particle and resonance production QCD proton-proton scattering Hadron-Hadron scattering (experiments) SMALL-X PHENOMENOLOGY DOUBLE PARTON SCATTERING HADRONIC PRODUCTION |
Zdroj: | Journal of High Energy Physics. 2017(6):1-38 |
ISSN: | 1126-6708 |
DOI: | 10.1007/JHEP06(2017)047 |
Popis: | The production cross-section of J/psi pairs is measured using a data sample of pp collisions collected by the LHCb experiment at a centre-of-mass energy of root s = 13TeV, corresponding to an integrated luminosity of 279 +/- 11 pb(-1). The measurement is performed for J/psi mesons with a transverse momentum of less than 10 GeV/c in the rapidity range 2.0 < y < 4.5. The production cross-section is measured to be 15.2 +/- 1.0 +/- 0.9 nb. The first uncertainty is statistical, and the second is systematic. The differential cross-sections as functions of several kinematic variables of the J/psi pair are measured and compared to theoretical predictions. |
Databáze: | OpenAIRE |
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