Measurement of the J/ψ pair production cross-section in pp collisions at √s=1 TeV
The production cross-section of J/ψ pairs is measured using a data sample of pp collisions collected by the LHCb experiment at a centre-of-mass energy of √s = 13 TeV, corresponding to an integrated luminosity of 279 ±11 pb[superscript −1]. The measurement is performed for J/ψ mesons with a transvers...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Published: |
Springer Nature
2018
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| Online Access: | http://hdl.handle.net/1721.1/119225 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
| Summary: | The production cross-section of J/ψ pairs is measured using a data sample of pp collisions collected by the LHCb experiment at a centre-of-mass energy of √s = 13 TeV, corresponding to an integrated luminosity of 279 ±11 pb[superscript −1]. The measurement is performed for J/ψ 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/ψ pair are measured and compared to theoretical predictions. Keywords: Hadron-Hadron scattering (experiments), Particle and resonance production proton-proton scattering, QCD, Quarkonium |
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