Open-charm meson spectroscopy
High Energy Physics - Phenomenology
2014-11-18 v1 High Energy Physics - Experiment
Nuclear Theory
Abstract
We present a theoretical framework that accounts for the new and mesons measured in the open-charm sector. These resonances are properly described if considered as a mixture of conventional wave quark-antiquark states and four-quark components. The narrowest states are basically wave quark-antiquark mesons, while the dominantly four-quark states are shifted above the corresponding two-meson threshold, being broad resonances. We study the electromagnetic decay widths as basic tools to scrutiny their nature. The proposed explanation incorporates in a natural way the most recently discovered mesons in charmonium spectroscopy.
Cite
@article{arxiv.hep-ph/0601143,
title = {Open-charm meson spectroscopy},
author = {J. Vijande and F. Fernandez and A. Valcarce},
journal= {arXiv preprint arXiv:hep-ph/0601143},
year = {2014}
}
Comments
15 pages, 5 tables. Accepted for publication in Phys. Rev. D