Observation of exotic 𝐽/𝜓𝜙 resonant structure in diffractive processes in proton-proton collisions
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 cons...
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
24 January, 2025
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| In: |
Physical review letters
Year: 2025, Jahrgang: 134, Heft: 3, Pages: 1-12 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.134.031902 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.134.031902 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.134.031902 |
| Verfasserangaben: | LHCb Collaboration |
| Zusammenfassung: | 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. |
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| Beschreibung: | LHCb Collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C.E. Cocha Toapaxi, M. De Cian, F. Glaser, X. Han, S. Hansmann-Menzemer, P. Herrero Gascon, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, M. Ruiz Diaz, G. Tuci, L.H. Ueckert, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, Y. Zhao, A. Zhelezov [und 1067 weitere] Gesehen am 19.11.2025 |
| Beschreibung: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.134.031902 |