B_{s,d}\to γγdecay in the model with one universal extra dimension

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/177908We estimate the beyond the Standard Model (SM) contribution to the B_{s,d} \to γγdouble radiative decay in the framework of the model with one universal extra dimension. This contribution gives a \sim 3 (6)% enhancement of the branching ratio calculated in the SM for B_{s (d)} \to γγ.5 pages, 1 fig, uses espcrc2High Energy Physics - PhenomenologyB_{s,d}\to γγdecay in the model with one universal extra dimensiontext