The production of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of √s = 13 TeV is studied with the LHCb detector. Cross-section measurements are performed as a function of the transverse momentum p_T and the rapidity y of the J/ψ meson in the region p_T < 14 GeV/c and 2.0 < y < 4.5, for both prompt J/ψ mesons and J/ψ mesons from b-hadron decays. The production cross-sections integrated over the kinematic coverage are 15.30 ± 0.03 ± 0.86 μb for prompt J/ψ and 2.34 ± 0.01 ± 0.13 μb for J/ψ from b-hadron decays, assuming zero polarization of the J/ψ meson. The first uncertainties are statistical and the second systematic. The cross-section reported for J/ψ mesons from b-hadron decays is used to extrapolate to a total b anti-b cross-section. The ratios of the cross-sections with respect to √s = 8 TeV are also determined.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Measurement of Forward J/ψ Production Cross-Sections in pp Collisions at √s = 13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2015(10), 0-28 [10.1007/JHEP10(2015)172].

Measurement of Forward J/ψ Production Cross-Sections in pp Collisions at √s = 13 TeV

Capriotti, L.;CARBONE, ANGELO;FERRARI, FABIO;GALLI, DOMENICO;MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;ZUCCHELLI, STEFANO
2015

Abstract

The production of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of √s = 13 TeV is studied with the LHCb detector. Cross-section measurements are performed as a function of the transverse momentum p_T and the rapidity y of the J/ψ meson in the region p_T < 14 GeV/c and 2.0 < y < 4.5, for both prompt J/ψ mesons and J/ψ mesons from b-hadron decays. The production cross-sections integrated over the kinematic coverage are 15.30 ± 0.03 ± 0.86 μb for prompt J/ψ and 2.34 ± 0.01 ± 0.13 μb for J/ψ from b-hadron decays, assuming zero polarization of the J/ψ meson. The first uncertainties are statistical and the second systematic. The cross-section reported for J/ψ mesons from b-hadron decays is used to extrapolate to a total b anti-b cross-section. The ratios of the cross-sections with respect to √s = 8 TeV are also determined.
2015
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Measurement of Forward J/ψ Production Cross-Sections in pp Collisions at √s = 13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2015(10), 0-28 [10.1007/JHEP10(2015)172].
Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Car...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/518162
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