6533b7cefe1ef96bd1256e4a

RESEARCH PRODUCT

Charged charmonium molecules

Javier VijandeA. ValcarceT. F. Caramés

subject

QuarkPhysicsNuclear and High Energy PhysicsParticle physicsMesonHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyHadronQuark modelElementary particleQuantum numberQuarkoniumExcited stateHigh Energy Physics::Experiment

description

We make use of a self-consistent quark-model based study of four-quark charmonium-like states to interpret recent charmonium experimental data. We conclude that there exists a ${D}^{*}{\overline{D}}^{*}$ meson-meson molecule with quantum numbers $({I}^{G}){J}^{PC}=({1}^{\ensuremath{-}}){2}^{++}$. Our study confirms the presence of charged charmonium-like resonances on the excited charmonium spectrum. We find support from recent experimental data by the Belle Collaboration [R. Mizuk et al. (Belle Collaboration), Phys. Rev. D 78, 072004 (2008)]. Confirmation of the experimental data by the Belle Collaboration and the determination of the quantum numbers of the new structures would help in discriminating among different theoretical models and would give further support to the theoretical analysis of T. Fern\'andez-Caram\'es, A. Valcarce, and J. Vijande [Phys. Rev. Lett. 103, 222001 (2009)].

https://doi.org/10.1103/physrevd.82.054032