Quenched chiral perturbation theory for heavy-light mesons.
نویسندگان
چکیده
We formulate quenched chiral perturbation theory for heavy-light mesons coupled to pions, and calculate the one-loop chiral logarithmic corrections to fB, fBs , BB and BBs . We also calculate these corrections for “partially quenched” theories. In both theories, the chiral logarithms diverge in the chiral limit, indicating that (partially) quenched theories should not be used to study this limit. Comparing the chiral logarithms to those in QCD, we estimate the errors caused by (partial) quenching. By forming suitable ratios, we can reduce the uncertainties in our estimates.
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ورودعنوان ژورنال:
- Physical review. D, Particles and fields
دوره 53 9 شماره
صفحات -
تاریخ انتشار 1995