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)

Files in This Item:
File Description SizeFormat 
886720.pdf16.62 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.