Non-factorizable effects in B-anti-B mixing
High Energy Physics - Phenomenology
2015-06-25 v2
Abstract
We study the B-parameter (``bag factor'') for B-anti-B mixing within a recently developed heavy-light chiral quark model. Non-factorizable contributions in terms of gluon condensates and chiral corrections are calculated. In addition, we also consider 1/m_Q corrections within heavy quark effective field theory. Perturbative QCD effects below \mu = m_b known from other work are also included. Considering two sets of input parameters, we find that the renormalization invariant B-parameter is B = 1.51 +- 0.09 for B_d and B = 1.40 +- 0.16 for B_s.
Keywords
Cite
@article{arxiv.hep-ph/0301118,
title = {Non-factorizable effects in B-anti-B mixing},
author = {A. Hiorth and J. O. Eeg},
journal= {arXiv preprint arXiv:hep-ph/0301118},
year = {2015}
}
Comments
23 pages, 7 figures, RevTex 4 Small changes, included more details in the text