6533b7ddfe1ef96bd12736af
RESEARCH PRODUCT
Understanding open-charm mesons
Javier VijandeFrancisco FernándezA. Valcarcesubject
PhysicsNuclear and High Energy PhysicsParticle physicsMesonHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyFísicaFOS: Physical sciencesAstronomy and AstrophysicsAtomic and Molecular Physics and OpticsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics::ExperimentOpen charmdescription
We present a theoretical framework that accounts for the new $D_J$ and $D_{sJ}$ mesons measured in the open-charm sector. These resonances are properly described if considered as a mixture of conventional $P-$wave quark-antiquark states and four-quark components. The narrowest states are basically $P-$wave quark-antiquark mesons, while the dominantly four-quark states are shifted above the corresponding two-meson threshold. We study the electromagnetic decay widths as basic tools to scrutiny their nature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-10-11 |