The models for the internal structure of the newly found four-quark charmoniumlike resonance Zc(3900) are discussed: the molecular model as well as the hadro-charmonium and tetraquark schemes. It is argued that it would be possible to resolve between these models by combining measurements of the quantum numbers of the resonance and of its decay rates into yet unseen channels πψ′, πhc, ρηc and into pairs of heavy mesons D*D̄ and DD ̄*. The models also predict different related four-quark states, which can be sought for in the existing and future data.
|Original language||English (US)|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - May 28 2013|