Chiral extrapolation of lattice data for B-meson decay constant
نویسندگان
چکیده
منابع مشابه
Chiral extrapolation of lattice data for B-meson decay constant
The B-meson decay constant fB has been calculated from unquenched lattice QCD in the unphysical region. For extrapolating the lattice data to the physical region, we propose a phenomenological functional form based on the effective chiral perturbation theory for heavy mesons, which respects both the heavy quark symmetry and the chiral symmetry, and the non-relativistic constituent quark model w...
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We investigate the chiral extrapolation of the lattice data for the light-heavy meson hyperfine splittings D − D and B − B to the physical region for the light quark mass. The chiral loop corrections providing nonanalytic behavior in mπ are consistent with chiral perturbation theory for heavy mesons. Since chiral loop corrections tend to decrease the already too low splittings obtained from lin...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2007
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-006-0187-1