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

Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2020). Measurement of ψ(2S) Production Cross-Sections in Proton-Proton Collisions at √s = 7 and 13 TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 80(3), 1-23 [10.1140/epjc/s10052-020-7638-y].

Measurement of ψ(2S) Production Cross-Sections in Proton-Proton Collisions at √s = 7 and 13 TeV

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Patrignani, C.;Perazzini, S.;Pisani, F.;Zucchelli, S.
2020

Abstract

The cross-section of ψ(2S) meson production in proton-proton collisions at √s = 13 TeV are measured with a data sample collected by the LHCb detector corresponding to an integrated luminosity of 275 pb^−1. The production cross-sections for prompt ψ(2S) mesons and those for ψ(2S) mesons from b-hadron decays (ψ(2S)-from-b) are determined as functions of the transverse momentum, p_T, and the rapidity, y, of the ψ(2S) meson in the kinematic range 2 < p_T < 20 GeV/c and 2.0 < y < 4.5. The production cross-sections integrated over this kinematic region are σ(prompt ψ(2S),13 TeV) = 1.430 ± 0.005(stat) ± 0.099(syst) μb, σ(ψ(2S)-from-b,13 TeV) = 0.426 ± 0.002(stat) ± 0.030(syst) μb. A new measurement of ψ(2S) production cross-sections in $PprotonPproton$ collisions at √s = 7 TeV is also performed using data collected in 2011, corresponding to an integrated luminosity of 614 pb^−1. The integrated production cross-sections in the kinematic range 3.5 < p_T < 14 GeV/c and 2.0 < y < 4.5 are σ(prompt ψ(2S),7 TeV) = 0.471 ± 0.001(stat) ± 0.025(syst) μb, σ(ψ(2S)-from-b,7 TeV) = 0.126 ± 0.001(stat) ± 0.008(syst) μb. All results show reasonable agreement with theoretical calculations.
2020
Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2020). Measurement of ψ(2S) Production Cross-Sections in Proton-Proton Collisions at √s = 7 and 13 TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 80(3), 1-23 [10.1140/epjc/s10052-020-7638-y].
Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Aidala, C.A.; Ajaltouni, Z.; Akar, S.; Albicocco, P.; Albrecht, J.; Alessio, F.; Alexander, M.;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/772349
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