WIMPless Dark Matter and Meson Decays with Missing Energy

TL;DR

This paper explores how WIMPless dark matter models influence invisible bottomonium decays and flavor-changing processes, linking these phenomena to nucleon-dark matter interactions for dark matter below 5 GeV.

Contribution

It introduces a novel analysis connecting WIMPless dark matter effects on meson decays with nucleon scattering and flavor physics, expanding understanding of light dark matter detection.

Findings

Invisible bottomonium decays constrain dark matter models.

Couplings to s quarks affect b→s transitions with missing energy.

Results relate meson decay observations to nucleon-dark matter scattering data.

Abstract

WIMPless dark matter offers an attractive framework in which dark matter can be very light. We investigate the implications of such scenarios on invisible decays of bottomonium states for dark matter with a mass less than around $5 {\rm GeV}$. We relate these decays to measurements of nucleon-dark matter elastic scattering. We also investigate the effect that a coupling to $s$ quarks has on flavor changing $b\to s$ processes involving missing energy.