The first study of J/Psi Phi 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/PsiPhi production but are consistent with a resonant model including several resonant states observed previously only in B+->J/Psi Phi K+ decays. The Chi_c0(4500) state is observed with a significance over 6sigma and the Chic1(4274) is confirmed with a significance of more than 4 sigma.

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

Kleijne N.
Membro del Collaboration Group
;
Morello M. J.
Membro del Collaboration Group
;
Passaro D.
Membro del Collaboration Group
;
Pica L.
Membro del Collaboration Group
;
Ribatti R.
Membro del Collaboration Group
;
Riccardi D.
Membro del Collaboration Group
;
2025

Abstract

The first study of J/Psi Phi 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/PsiPhi production but are consistent with a resonant model including several resonant states observed previously only in B+->J/Psi Phi K+ decays. The Chi_c0(4500) state is observed with a significance over 6sigma and the Chic1(4274) is confirmed with a significance of more than 4 sigma.
2025
Settore FIS/01 - Fisica Sperimentale
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/153926
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