The production cross-section of the χc1(3872) state relative to the ψ(2S) me- son is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of √s = 8 and 13TeV, corresponding to integrated luminosi- ties of 2.0 and 5.4fb−1, respectively. The two mesons are reconstructed in the J/ψπ+π− final state. The ratios of the prompt and nonprompt χc1(3872) to ψ(2S) production cross- sections are measured as a function of transverse momentum, pT, and rapidity, y, of the χc1(3872) and ψ(2S) states, in the kinematic range 4 < pT < 20GeV/c and 2.0 < y < 4.5. The prompt ratio is found to increase with pT, independently of y. For the prompt compo-

Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV / Aaij, R., Abdelmotteleb, A.S.W., Abellán Beteta, C., Abudinen Gallego, F.J., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2022:1(2022). [10.1007/JHEP01(2022)131]

Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV

Casse, G.;Coco, V.;Sarti, A.;
2022

Abstract

The production cross-section of the χc1(3872) state relative to the ψ(2S) me- son is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of √s = 8 and 13TeV, corresponding to integrated luminosi- ties of 2.0 and 5.4fb−1, respectively. The two mesons are reconstructed in the J/ψπ+π− final state. The ratios of the prompt and nonprompt χc1(3872) to ψ(2S) production cross- sections are measured as a function of transverse momentum, pT, and rapidity, y, of the χc1(3872) and ψ(2S) states, in the kinematic range 4 < pT < 20GeV/c and 2.0 < y < 4.5. The prompt ratio is found to increase with pT, independently of y. For the prompt compo-
2022
Forward physics, Hadron-Hadron scattering (experiments), Minimum bias, Particle and resonance production, QCD
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV / Aaij, R., Abdelmotteleb, A.S.W., Abellán Beteta, C., Abudinen Gallego, F.J., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2022:1(2022). [10.1007/JHEP01(2022)131]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1673133
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