Analysis reveals dark matter decay patterns in B meson decays, suggesting new physics implications.
The surprising excess of missing-energy events far beyond all standard-model expectations in the weak decays of the charged ground-state B⁺ meson into some charged strange meson, rather recently observed by the Belle-II experiment, may (easily) be explained by the decay of the B meson into the strange meson and a pair of dark-matter fermion and antifermion, mediated by an (intermediate) scalar or vector boson. Thorough inspections of both the total and the differential widths of these decays provide, among others, a simple means for the (straightforward) discrimination of such mediator boson's scalar or vector nature.
No takes yet. Share an insight, caveat, or question.
Berezhnoy et al. (2025) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: