Hadronic-loop induced mass shifts in scalar heavy-light mesons
High Energy Physics - Phenomenology
2008-11-26 v2
Abstract
We calculate the mass shifts of heavy-light scalar mesons due to hadronic loops under the assumption that these vanish for the groundstate heavy-light mesons. The results show that the masses calculated in quark models can be reduced significantly. We stress that the mass alone is not a signal for a molecular interpretation. Both the resulting mass and the width suggest the observed state could be a dressed state. We give further predictions for the bottom scalar mesons which can be used to test the dressing mechanism.
Keywords
Cite
@article{arxiv.0712.2953,
title = {Hadronic-loop induced mass shifts in scalar heavy-light mesons},
author = {Feng-Kun Guo and Siegfried Krewald and Ulf-G. Meissner},
journal= {arXiv preprint arXiv:0712.2953},
year = {2008}
}
Comments
14 pages, 2 figures. Version accepted for publication in Phys. Lett. B