New Projects on Dark Photon Search

TL;DR

This paper reviews recent experimental efforts and future plans to search for dark photons, hypothetical particles that could mediate interactions between dark matter and ordinary matter, within the context of hidden sector theories.

Contribution

It provides a comprehensive overview of current and upcoming experimental strategies to detect dark photons, highlighting recent results and future directions.

Findings

Multiple experiments have set constraints on dark photon parameters.

Recent results have narrowed the viable parameter space for dark photons.

Future experiments are planned to explore unexplored regions of the dark photon parameter space.

Abstract

Despite the great success of the Standard Model of particle physics the nature of Dark Matter still remains unclear. Recently, the idea of the existence of a hidden sector coupling only weakly with the ordinary matter was revitalized and gained popularity. A simple mediator between the hidden and the visible sector could be a vector particle of a new gauge interaction, the so called dark photon. Numerous of activities were initiated to probe its parameter space. The present results and the foreseen experiments aimed to search for dark photons in few directions are reviewed and discussed.