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Interactions between heavy mesons and Goldstone bosons from chiral dynamics |
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| Authors: | F?-K?Guo C?Hanhart U?-G?Mei?ner |
| Institution: | 1.Institut für Kernphysik and Jülich Center for Hadron Physics,Forschungszentrum Jülich,Jülich,Germany;2.Institute for Advanced Simulations,Forschungszentrum Jülich,Jülich,Germany;3.Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics,Universit?t Bonn,Bonn,Germany |
| Abstract: | 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. |
| Keywords: | PACS" target="_blank">PACS 12 39 Fe Chiral Lagrangians 13 75 Lb Meson-meson interactions 14 40 Lb Charmed mesons |
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