Recent Results in Chiral Perturbation Theory for Mesons Containing a Single Heavy Quark

Details Recent Results in Chiral Perturbation Theory for Mesons Containing a Single Heavy Quark Recent Results in Chiral Perturbation Theory for Mesons Containing a Single Heavy Quark

1993-05-10

arxiv.org/abs/hep-ph/9305235v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

UCSD/PTH 93-10, 6 pages, 2 figures

Scientific paper

Chiral symmetry and heavy quark symmetry constrain the interactions of mesons containing a single heavy quark with low-momentum pions. Chiral corrections to the Isgur-Wise function for $\bar B_s \rightarrow D_s^{(*)}$ versus $\bar B \rightarrow D^{(*)}$ semileptonic decay, the ratio of heavy meson decay constants $f_{D_s}/ f_D$ or $f_{B_s}/ f_B$, the amplitudes for $B_s - \bar B_s$ versus $B^0 - \bar B{\,}^0$ mixing, and the heavy meson mass splittings are calculated in chiral perturbation theory. (Invited talk Rencontres de Moriond 1993)

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