Constraining the Unitarity Triangle with B -> K* gamma and B -> rho gamma
High Energy Physics - Phenomenology
2010-11-23 v1
Abstract
We discuss the exclusive radiative decays B -> K* gamma and B -> rho gamma in QCD factorization within the Standard Model. The analysis is based on the heavy-quark limit of QCD. Our results for these decays are complete to next-to-leading order in QCD and to leading order in the heavy-quark limit. Phenomenological implications for branching ratios and isospin breaking effects are discussed. Special emphasis is placed on constraining the CKM unitarity triangle from these observables.
Cite
@article{arxiv.hep-ph/0310317,
title = {Constraining the Unitarity Triangle with B -> K* gamma and B -> rho gamma},
author = {Stefan W. Bosch},
journal= {arXiv preprint arXiv:hep-ph/0310317},
year = {2010}
}
Comments
3 pages; To appear in the proceedings of International Europhysics Conference on High-Energy Physics (HEP 2003), Aachen, Germany, 17-23 Jul 2003