The first study of J/ψφ production in diffractive processes in proton-proton collisions is presented. The study is based on an LHCb dataset recorded at center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5 fb-1. The data disfavor a nonresonant J/ψφ production but are consistent with a resonant model including several resonant states observed previously only in B+→J/ψφK+ decays. The χc0(4500) state is observed with a significance over 6σ and the χc1(4274) is confirmed with a significance of more than 4σ.

Observation of Exotic J/ψφ Resonant Structure in Diffractive Processes in Proton-Proton Collisions / Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adefisoye, A.A., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Aliouche, Z., Alvarez Cartelle, P., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 134:3(2025), pp. 0-0. [10.1103/PhysRevLett.134.031902]

Observation of Exotic J/ψφ Resonant Structure in Diffractive Processes in Proton-Proton Collisions

Bizzeti A.;
2025

Abstract

The first study of J/ψφ production in diffractive processes in proton-proton collisions is presented. The study is based on an LHCb dataset recorded at center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5 fb-1. The data disfavor a nonresonant J/ψφ production but are consistent with a resonant model including several resonant states observed previously only in B+→J/ψφK+ decays. The χc0(4500) state is observed with a significance over 6σ and the χc1(4274) is confirmed with a significance of more than 4σ.
2025
134
3
0
0
Observation of Exotic J/ψφ Resonant Structure in Diffractive Processes in Proton-Proton Collisions / Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adefisoye, A.A., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Aliouche, Z., Alvarez Cartelle, P., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 134:3(2025), pp. 0-0. [10.1103/PhysRevLett.134.031902]
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinen, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Agapopoul...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1392461
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