Estimate of BR(B -> X_s gamma) at O(alpha_s^2)

Details Estimate of BR(B -> X_s gamma) at O(alpha_s^2) Estimate of BR(B -> X_s gamma) at O(alpha_s^2)

2006-09-22

arxiv.org/abs/hep-ph/0609232v2

Phys.Rev.Lett.98:022002,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 figures. Version accepted by the PRL. Words disallowed by the journal removed from the title. References updated an

Scientific paper

10.1103/PhysRevLett.98.022002

Combining our results for various O(alpha_s^2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find BR(B -> X_s gamma) = (3.15 +_ 0.23) x 10^-4 for E_gamma > 1.6 GeV in the B-meson rest frame. The four types of uncertainties: non-perturbative (5%), parametric (3%), higher-order (3%) and m_c-interpolation ambiguity (3%) have been added in quadrature to obtain the total error.

Affiliated with

Also associated with

No associations

Rating

Estimate of BR(B -> X_s gamma) at O(alpha_s^2) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Estimate of BR(B -> X_s gamma) at O(alpha_s^2), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Estimate of BR(B -> X_s gamma) at O(alpha_s^2) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-130003