The J/ψΦ decay channel of the Y(4140) Molecular State

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:05:53Z
dc.date.available2018-12-11T17:05:53Z
dc.date.created2018-12-11T17:05:53Z
dc.date.issued2015-01-01
dc.identifierNuclear and Particle Physics Proceedings, v. 258-259, p. 148-151.
dc.identifier2405-6014
dc.identifierhttp://hdl.handle.net/11449/173494
dc.identifier10.1016/j.nuclphysbps.2015.01.032
dc.identifier2-s2.0-84988291966
dc.identifier0845658462496715
dc.identifier0000-0003-2132-8251
dc.description.abstractUsing 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.
dc.languageeng
dc.relationNuclear and Particle Physics Proceedings
dc.relation0,275
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectExotic mesons and heavy quarkonia
dc.subjectMolecular states
dc.subjectQCD spectral sum rules
dc.titleThe J/ψΦ decay channel of the Y(4140) Molecular State
dc.typeActas de congresos


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