B_(s,d)to γγ decay in the model with one universal extra dimension
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✦ hep-ph
keywords
gammamodelcontributiondecaydimensionextrauniversalbeyond
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We estimate the beyond the Standard Model (SM) contribution to the B_{s,d} \to \gamma\gamma double 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 \gamma\gamma.
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