158 citations · 309 across the 8 of their papers we have counts for
8 papers · 1 filter
Three-loop contributions to associated with the current-current operators
Christoph Greub, Hrachia M. Asatrian, Hrachya H. Asatryan +2
In a recent work, we calculated all three-loop diagrams contributing to the decay amplitude for where none of the gluons touch the -leg. In the present paper, we com…
Penguin contribution to width difference and CP asymmetry in - mixing at order
Hrachia M. Asatrian, Hrachya H. Asatryan, Artyom Hovhannisyan +3
We present new contributions to the decay matrix element of the - mixing complex, where or . Our new results constitute the order cor…
Rare decays at the NLO
H. M. Asatrian, H. H. Asatryan, A. Hovhannisyan
We present an independent calculation of matrix elements of the QCD penguin operators for the decays . The Mellin-Barnes representation techn…
Complete bremsstrahlung corrections to the forward-backward asymmetries in
H. M. Asatrian, H. H. Asatryan, A. Hovhannisyan +1
In a recent paper we presented a calculation of NNLL virtual corrections to the forward-backward asymmetries in decay. That result does not include bremsstra…
Complete gluon bremsstrahlung corrections to the process b -> s l+ l-
H. H. Asatryan, H. M. Asatrian, C. Greub +1
In a recent paper, we presented the calculation of the order (alpha_s) virtual corrections to b->s l+ l- and of those bremsstrahlung terms which are needed to cancel the infrared d…
Calculation of two-loop virtual corrections to b --> s l+ l- in the standard model
H. H. Asatryan, H. M. Asatrian, C. Greub +1
We present in detail the calculation of the virtual O(alpha_s) corrections to the inclusive semi-leptonic rare decay b --> s l+ l-. We also include those O(alpha_s) bremsstrahlung…