The coupled-channel analysis of the D and D_s mesons
High Energy Physics - Phenomenology
2008-11-26 v1 High Energy Physics - Experiment
High Energy Physics - Lattice
Abstract
The shift of the p-wave meson mass due to coupling to the DK channel is calculated without fitting parameters using the chiral Lagrangian. As a result the original mass 2.490 MeV generically calculated in the relativistic quark models is shifted down to the experimental value 2317 MeV. With the same Lagrangian the shift of the radial excited level is much smaller, while the total width MeV and the width ratio is in contradiction with the state observed by SELEX group.
Cite
@article{arxiv.hep-ph/0409361,
title = {The coupled-channel analysis of the D and D_s mesons},
author = {Yu. A. Simonov and J. A. Tjon},
journal= {arXiv preprint arXiv:hep-ph/0409361},
year = {2008}
}
Comments
9 pages, 2 figures