Heavy Flavor & Dark Sector

Abstract

We consider some contributions to rare processes in $B$ meson decays from a Dark Sector containing 2 light unstable scalars, with large couplings to each other and small mixings with Standard Model Higgs scalars. We show that existing constraints allow for an exotic contribution to high multiplicity final states with a branching fraction as large as $\mathcal{O}(10^{-4})$, and that exotic particles could appear as narrow resonances or long lived particles which are mainly found in high multiplicity final states from $B$ decays.

27 pages, 10 figures

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Cited by in corpus (4)

• $B_{(s)}^0$-mixing matrix elements from lattice QCD for the Standard Model and beyond
• Search for Long-Lived Particles in $e^{+}{e}^{-}$ Collisions
• Searching new physics in rare $B$-meson decays into multiple muons
• Novel $B$-decay signatures of light scalars at high energy facilities