Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 2: Hadronenstruktur und -spektroskopie
HK 2.2: Vortrag
Montag, 4. März 2013, 11:30–11:45, HSZ-105
Heavy-light mesons in unitarized chiral perturbation theory — •Michael Altenbuchinger1, Lisheng Geng1,2, and Wolfram Weise1,3 — 1Physik Department, TU München, D-85747 Garching — 2School of Physics and Nuclear Energy Engineering, Beihang Univ., Beijing 100191, China — 3ECT*, Villazzano (Trento), Italy
We analyze the scattering amplitude of D (D*) mesons off pseudo-Goldstone bosons in the framework of unitarized chiral perturbation theory. The S-wave scattering lengths and their light-quark mass dependence are investigated, and consistency with recent lattice QCD computations is explored. Possible bound states and resonances are discussed. Finally, we apply our results for heavy-light meson scattering off pseudo-Goldstone bosons in particular to B K and B*K systems.
Work supported in part by BMBF, the A.v. Humboldt foundation, GSI and the DFG Excellence Cluster “Origin and Structure of the Universe”.