Probing Bottom-flavored Scalar Dark Matters at Loop Level

TL;DR

This paper investigates loop-level corrections to spin-independent WIMP-nucleon scattering in bottom-flavored scalar dark matter models, revealing significant cross sections that could impact direct detection experiments.

Contribution

It provides the first detailed calculation of loop-induced spin-independent scattering cross sections in bottom-flavored scalar dark matter models, considering two different mediator scenarios.

Findings

Loop corrections significantly enhance the scattering cross section.

Both scenarios show sizable loop-induced spin-independent interactions.

Results suggest potential detectability in future experiments.

Abstract

In this paper we consider loop corrections to the spin-independent WIMP-nucleon scattering cross section in bottom-quark flavored scalar-type dark matter models. We focus on two scenarios: (a) a complex scalar dark matter with a scalar particle as the mediator; and (b) a real scalar dark matter with a vector boson as the mediator. In both scenarios, the direct detection cross sections are either spin-dependent or kinematically forbidden at the tree-level. Corrections induced by the WIMP-gluon effective operator, scalar-type WIMP-quark effective operator, and the twist-2 effective operator are calculated. Numerical results show that loop induced spin-independent WIMP-nucleon scattering cross sections are quite considerable in both scenarios.