QCD Corrections to the Radiative Decay B -> X_s gamma
High Energy Physics - Phenomenology
2010-04-30 v1
Abstract
In this short review, the calculation of the next-to-next-to-leading order QCD corrections to the inclusive radiative decay B -> X_s gamma is described. I summarize the salient features of the calculational framework adopted, discuss the results obtained in the last few years, and indicate the technical tools that made the NNLO calculations possible. I conclude by comparing the current NNLO theoretical estimate for the branching ratio with the experimental measurement and by briefly discussing the size and origin of the residual theoretical uncertainty.
Cite
@article{arxiv.0812.0082,
title = {QCD Corrections to the Radiative Decay B -> X_s gamma},
author = {Andrea Ferroglia},
journal= {arXiv preprint arXiv:0812.0082},
year = {2010}
}
Comments
18 pages, 7 figures. Invited review for Modern Physics Letters A