Completing the Calculation of BLM corrections to B -> Xs gamma

Details Completing the Calculation of BLM corrections to B -> Xs gamma Completing the Calculation of BLM corrections to B -> Xs gamma

2010-09-28

arxiv.org/abs/1009.5685v1

Phys.Rev.D83:014024,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 ps figures

Scientific paper

10.1103/PhysRevD.83.014024

Perturbative O(alpha_s^2) corrections to BR(B -> Xs gamma) in the BLM approximation receive contributions from two-, three- and four-body final states. While all the two-body results are well established by now, the other ones have remained incomplete for several years. Here, we calculate the last contribution that has been missing to date, namely the one originating from interference of the current-current and gluonic dipole operators (K_18^{(2)beta_0} and K_{28}^{(2)beta_0}). Moreover, we confirm all the previously known results for BLM corrections to the photon energy spectrum that involve the current-current operators (e.g., K_{22}^{(2)beta_0} and K_{27}^{(2)beta_0}). Finally, we also confirm the recent findings of Ferroglia and Haisch on self-interference of the gluonic dipole operator (K_{88}^{(2)beta_0}).

Affiliated with

Also associated with

No associations

Rating

Completing the Calculation of BLM corrections to B -> Xs gamma 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 Completing the Calculation of BLM corrections to B -> Xs gamma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Completing the Calculation of BLM corrections to B -> Xs gamma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-521251