Work

Dark matter emission at Belle II and NA62 in the minimal flavor violation framework

Year: 2026

Type: article

Abstract: Minimal flavor violation (MFV) provides a compelling framework for exploring physics beyond the Standard Model, in which new QCD-singlet fields transforming under the global SU ( 3 ) 3 quark flavor symmetry can naturally be stable and act as dark matter (DM) candidates. We show that the DM–MFV framework naturally accommodates the excess in either K + → π + ν ν ¯ or B + → K + ν ν ¯ , while a unified explanation of both channels simultaneously cannot be achieved within a minimal setup containing only a single dark matter multiplet with nearly degenerate masses. Overall, our findings underscore the intricate interplay between MFV-based model building, flavored dark matter scenarios, and precision flavor experiments, highlighting flavored dark matter as a framework that is both theoretically robust and experimentally testable.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/7dlz-bwlz

Authors: Federico Mescia, Shohei Okawa, Joel Swallow, Claudio Toni