Complementarity between dark matter direct searches and CE$\nu$NS experiments in $U(1)'$ models

TL;DR

This paper investigates how $U(1)'$ models with fermionic dark matter can be constrained by combining results from CE$ u$NS experiments and dark matter direct detection, considering various experimental bounds.

Contribution

It introduces a vector-like fermionic dark matter candidate in $U(1)'$ models and analyzes its parameter space using multiple experimental constraints.

Findings

Complementary bounds from CE$ u$NS and direct detection experiments.

Identification of allowed $Z'$ portal dark matter regions.

Constraints from collider and beam dump experiments.

Abstract

We explore the possibility of having a fermionic dark matter candidate within $U(1)'$ models for CE$\nu$NS experiments in light of the latest COHERENT data and the current and future dark matter direct detection experiments. A vector-like fermionic dark matter has been introduced which is charged under $U(1)'$ symmetry, naturally stable after spontaneous symmetry breaking. We perform a complementary investigation using CE$\nu$NS experiments and dark matter direct detection searches to explore dark matter as well as $Z^{\prime}$ boson parameter space. Depending on numerous other constraints arising from the beam dump, LHCb, BABAR, and the forthcoming reactor experiment proposed by the SBC collaboration, we explore the allowed region of $Z^{\prime}$ portal dark matter.