651 citations · 839 across the 5 of their papers we have counts for
5 papers · 1 filter
Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
M. Misiak, H. M. Asatrian, K. Bieri +14
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…
Virtual- and bremsstrahlung corrections to b -> d l+ l- in the standard model
H. M. Asatrian, K. Bieri, C. Greub +1
We present the calculation of the virtual- and bremsstrahlung corrections of O(alpha_s) to the matrix elements <d l+ l-|O_i|b>. This is the missing piece in the NNLL results for va…
Review on the inclusive rare decays B -> X_s gamma and B -> X_d gamma in the Standard Model
Kay Bieri, Christoph Greub
We review the NLL QCD calculations for the branching ratio of B -> X_s gamma in the SM. In particular, we emphasize the problem related to the definition of the charm quark mass wh…
Fermionic NNLL corrections to b -> s γ
Kay Bieri, Christoph Greub, Matthias Steinhauser
In this paper we take the first step towards a complete next-to-next-to-leading logarithmic (NNLL) calculation of the inclusive decay rate for . We consider the virtual…
NNLL corrections to the angular distribution and to the forward-backward asymmetries in b -> X_s l+ l-
H. M. Asatrian, K. Bieri, C. Greub +1
We present NNLL results for the double differential decay width dGamma(b -> X_s l+ l-)/(dsh dcos(theta)), where theta is the angle between the momenta of the b-quark and the l+, me…