B_s→μ⁺μ⁻and the upward-going muon flux from the WIMP annihilation in the sun or the earth

Abstract

We consider the upward-going muon flux due to the WIMP annihilations in the cores of the sun and the earth, including the upper bound on the branching ratio for B s → µ + µ − decay. We find that the constraint from B s → µ + µ − is very strong in most parameter space, and exclude the supergravity parameter space regions where the expected upward-going muon fluxes are within the expected reach of AMANDA II.

Scalar dark matter behind b → sμμ anomaly

“…And the coannihilation mechanism for the DM relic density is not favoured as a solution to b → sµµ anomaly. This shows a strong interplay between the flavour physics and DM phenomena [16,48,[57][58][59][60][61][62], which will be discussed in the next Section in more detail. Once X I X I → Z Z is kinematically open near m I = m Z , it dominates the annihilation processes, which is not so sensitive to m R .…”