Suppressed decay into open charm for the Y(4260) being an hybrid

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dc.creatorKou, E.
dc.creatorPene, O.
dc.date2005-07-10
dc.date2005-08-30
dc.date.accessioned2026-07-07T11:26:44Z
dc.date.available2026-07-07T11:26:44Z
dc.descriptionWe investigate the Y(4260) resonance recently discovered by the Babar collaboration. We propose the observation of its decay into J/psi pi pi and its non observation into open charm as a consequence of it being a charmonium hybrid state with a magnetic constituent gluon. We prove a selection rule forbidding its decay into two S-wave charmed mesons in any potential model. We suggest a generalisation of the selection rule based only on the heavy quark nature of the charm.
dc.description5 pages
dc.identifierhttps://arxiv.org/abs/hep-ph/0507119
dc.identifierhttp://arxiv.org/abs/hep-ph/0507119
dc.identifierPhys.Lett.B631:164-169,2005
dc.identifierdoi:10.1016/j.physletb.2005.09.013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195924
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSuppressed decay into open charm for the Y(4260) being an hybrid
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