The J/ψΦ decay channel of the Y(4140) Molecular State
Loading...
External sources
External sources
Date
Authors
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Type
Work presented at event
Access right
Acesso aberto
External sources
External sources
Abstract
Using the QCD sum rule approach we study the Y(4140) state assuming that it can be described by a D* sD* s molecular state with JPC = 0++ quantum numbers. We evaluate the decay width into the channel Y J/ψΦ and we find the value ΓY→ J/ψΦ≃ (0.34 ± 0.11) MeV, which is much smaller than the total experimental width Γ ≃ (20 ± 8) MeV. However, considering the experimental upper limits for the decay of the Y(4140) into di-photons, Γ γγ×Β[ΓY→J/ψΦ]> 41 eV, such a scalar molecule can be a good candidate to explain the possible exotic structure of the Y(4140) state. © 2016.
Description
Language
English
Citation
Nuclear and Particle Physics Proceedings, v. 258-259, p. 148-151.
