A two particle hidden sector and the oscillations with photons

TL;DR

This paper investigates a dark sector model with axion-like particles and hidden photons, analyzing their oscillations, optical properties, and experimental bounds, highlighting detection challenges for multiple hidden particles.

Contribution

It provides a detailed analysis of oscillations and optical effects in a two-particle hidden sector model, including bounds from current experiments and discussion of detection challenges.

Findings

Bounds on couplings versus mass from ALPS-I and PVLAS

Analysis of oscillation behavior in the dark sector

Discussion of detection challenges for multiple hidden particles

Abstract

We present a detailed study of the oscillations and optical properties for vacuum, in a model for the dark sector that contains axion-like particles and hidden photons. In this model, both can couple to photons. We provide bounds for the couplings versus the mass, using current results from ALPS-I and PVLAS. We also discuss the challenges for the detection of models with more than one hidden particle in light shining trough wall-like experiments.