$B \to \gamma \gamma$ in an ACD model
High Energy Physics - Phenomenology
2008-12-18 v1
Abstract
We present a full calculation of the amplitudes for in a simple ACD model that extends an incomplete one in a previous paper. We find cancellations between the contributions from different KK towers and a small decrease relative to the SM predictions. It is conjectured that radiative QCD corrections might actually lead to an enhancement in the branching ratios and {\bf CP} asymmetries, but no more than modest ones.
Cite
@article{arxiv.0806.1541,
title = {$B \to \gamma \gamma$ in an ACD model},
author = {I. I. Bigi and G. G. Devidze and A. G. Liparteliani and U. -G. Meißner},
journal= {arXiv preprint arXiv:0806.1541},
year = {2008}
}
Comments
3 pages, 2 figures