Three-loop contributions to $b\to s{\hat{I}}^3$ 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 $b\to s{\hat{I}}^3$ where none of the gluons touch the $b$-leg. In the present paper, we co…