https://doi.org/10.1140/epja/i2009-10762-1
Regular Article - Theoretical Physics
Interactions between heavy mesons and Goldstone bosons from chiral dynamics
1
Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425, Jülich, Germany
2
Institute for Advanced Simulations, Forschungszentrum Jülich, D-52425, Jülich, Germany
3
Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115, Bonn, Germany
* e-mail: f.k.guo@fz-juelich.de
Received:
16
January
2009
Revised:
10
March
2009
Accepted:
23
March
2009
Published online:
18
April
2009
We calculate the S -wave scattering lengths for charmed mesons scattering off Goldstone bosons and explore their quark mass dependence using the chiral perturbation theory up to next-to-leading order as well as a unitarized version of it. The quark mass dependence of all scattering lengths determined in a recent lattice calculation can be reproduced by the unitarized version. We also discuss signals of possible bound states in these observables.
PACS: 12.39.Fe Chiral Lagrangians – / 13.75.Lb Meson-meson interactions – / 14.40.Lb Charmed mesons –
© SIF, Springer-Verlag Berlin Heidelberg, 2009
