Year: 2007
Type: article
Abstract: We present a theoretical framework that accounts for the new DJ and DsJ 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.
Authors: J. VIJANDE, F. FERNÁNDEZ, A. VALCARCE
Institution: Universidad de Salamanca
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2092532971