On the matrix elements of dB=0 operators in the heavy meson decay widths
High Energy Physics - Phenomenology
2009-01-16 v1
Abstract
We determine the chiral corrections to the matrix elements of the Delta B=0 four-quark operators which are relevant to the studies of the ratios of lifetimes of heavy-light mesons as well as to the power corrections to the inclusive semileptonic heavy-to-light decays. The chiral logarithmic corrections computed here can be combined with the forthcoming estimates of the corresponding matrix elements on the lattice to provide the reliable physics result of the well known bag-parameters B_(1,2) and epsilon_(1,2).
Keywords
Cite
@article{arxiv.0804.1750,
title = {On the matrix elements of dB=0 operators in the heavy meson decay widths},
author = {Damir Becirevic and Svjetlana Fajfer and Jernej F. Kamenik},
journal= {arXiv preprint arXiv:0804.1750},
year = {2009}
}
Comments
12 pages, 1 figure