Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/221786
Title: | Observation of sizeable ω contribution to χ c1ð3872Þ → π + π − J=ψ decays |
Author: | Garcia Moreno, Paula Garrido Beltrán, Lluís Gironella Gironell, Pere Gomez Fernandez, Sergio Graugés Pous, Eugeni Lobo Salvia, Aniol Marin Benito, Carla Mauricio Ferre, Joan Vazquez Gomez, Ricardo Alfonso Albero, Alejandro LHCb Collaboration |
Keywords: | Quarks Hadrons Mesons (Física nuclear) Quarks Hadrons Mesons (Nuclear physics) |
Issue Date: | 2023 |
Publisher: | American Physical Society |
Abstract: | Resonant structures in the dipion mass spectrum from χc1ð3872Þ → πþπ−J=ψ decays, produced via Bþ → Kþχc1ð3872Þ decays, are analyzed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. A sizeable contribution from the isospin conserving χc1ð3872Þ → ωJ=ψ decay is established for the first time, ð21.4 2.3 2.0Þ%, with a significance of more than 7.1σ. The amplitude of isospin violating decay, χc1ð3872Þ → ρ0J=ψ, relative to isospin conserving decay, χc1ð3872Þ → ωJ=ψ, is properly determined, and it is a factor of 6 larger than expected for a pure charmonium state. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.108.L011103 |
It is part of: | Physical Review D, 2023, vol. 108, num.L011103 |
URI: | https://hdl.handle.net/2445/221786 |
Related resource: | https://doi.org/10.1103/PhysRevD.108.L011103 |
ISSN: | 2470-0010 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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886720.pdf | 16.62 MB | Adobe PDF | View/Open |
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