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https://hdl.handle.net/2445/220922| Title: | Observation of Exotic J/ψφ Resonant Structure in Diffractive Processes in Proton-Proton Collisions |
| Author: | Aaij, R. Vazquez Gomez, R. Mauricio, J. Marin Benito, Carla Manera Escalero, Rafel López Huertas, Albert Lobo Salvia, Aniol Graugés Pous, Eugeni Gomez Fernandez, S. Gioventù, Alessandra Gironella Gironell, Pere Garrido Beltran, Lluís Garcia Moreno, Paula Comerma-Montells, Albert Calefice, Lukas LHCb Collaboration |
| Keywords: | Cromodinàmica quàntica Col·lisions (Física) Mesons (Física nuclear) Quantum chromodynamics Collisions (Physics) Mesons (Nuclear physics) |
| Issue Date: | 24-Jan-2025 |
| Publisher: | American Physical Society |
| 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 Bþ → J=ψϕKþ decays. The χc0ð4500Þ state is observed with a significance over 6σ and the χc1ð4274Þ is confirmed with a significance of more than 4σ |
| Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.134.031902 |
| It is part of: | Physical Review Letters, 2025, vol. 134, num.3, p. 1-12 |
| URI: | https://hdl.handle.net/2445/220922 |
| Related resource: | https://doi.org/10.1103/PhysRevLett.134.031902 |
| ISSN: | 0031-9007 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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| 884444.pdf | 700.55 kB | Adobe PDF | View/Open |
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