QCD Corrections to the Radiative Decay B -> X_s gamma
arXiv:0812.0082 · doi:10.1142/S021773230802879X
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.
18 pages, 7 figures. Invited review for Modern Physics Letters A
References in corpus (6)
- Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
- NNLO QCD corrections to the B -> X_s gamma matrix elements using interpolation in m_c
- Feynman Diagrams and Differential Equations
- Enhanced Non-local Power Corrections to the B->X_s+gamma Decay Rate
- Magnetic dipole operator contributions to the photon energy spectrum in anti-B -> X(s) gamma at O(alpha(s)^2)
- Charm quark mass dependence of the electromagnetic dipole operator contribution to anti-B -> X(s) gamma at O(alpha**2(s))