6533b82afe1ef96bd128ba04
RESEARCH PRODUCT
Too many Xʼs, Yʼs and Zʼs?
Javier VijandeT. F. CaramésA. Valcarcesubject
PhysicsNuclear and High Energy PhysicsParticle physicsMeson productionMesonHigh Energy Physics::LatticeQuark modelNuclear TheoryHigh Energy Physics::PhenomenologyQuantum numberNuclear physicsHigh Energy Physics::ExperimentSpectroscopyNuclear ExperimentNuclear theorydescription
Abstract A large number of new states have been reported during the last few years in charmonium spectroscopy above the charmed meson production threshold. They have been called X ʼs, Y ʼs, and Z ʼs. We reflect on the influence of thresholds on heavy meson spectroscopy comparing different flavor sectors and quantum numbers. The validity of a quark-model picture above open-flavor thresholds would severely restrict the number of channels that may lodge meson–meson molecules.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-03-01 | Physics Letters B |