$b\to ss\bar{d}$ decay in Randall-Sundrum models

Abstract

The extremely small branching ratio of $b\to ss\bar{d}$ decay in the Standard Model makes it a suitable channel to explore new-physics signals. We study this $\Delta S=2$ process in Randall-Sundrum models, including the custodially protected and the bulk-Higgs Randall-Sundrum models. Exploring the experimentally favored parameter spaces of these models, it suggests a possible enhancement of the decay rate, compared to the Standard Model result, by at most two orders of magnitude.

arXiv comment16 pages, 2 figures, content revised, figure and references added

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• Semi-aligned two Higgs doublet model
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