A gluonic mechanism for B --> D eta'
High Energy Physics - Phenomenology
2009-11-07 v1
Abstract
We present a calculation of the process B --> D eta' within a heavy-light chiral quark model. We assume that the eta' has a large gluonic component, and its coupling is described via the glue-glue-eta' effective vertex. The main contribution comes from the non-factorizable part of the effective weak Lagrangian at quark level. We find, within our model-dependent assumptions, a branching ratio Br(B --> D eta') = (1.7 -- 3.3) 10^(-4), somewhat below the experimental upper bound 9.4 10^(-4).
Cite
@article{arxiv.hep-ph/0109201,
title = {A gluonic mechanism for B --> D eta'},
author = {J. O. Eeg and A. Hiorth and A. D. Polosa},
journal= {arXiv preprint arXiv:hep-ph/0109201},
year = {2009}
}
Comments
17 pages, 4 figures, RevTeX