Brane matter, hidden or mirror matter, their various avatars and mixings: many faces of the same physics

TL;DR

This paper explores the interconnectedness of various models involving brane matter, hidden photons, and mixing phenomena, proposing they are different manifestations of a unified underlying physics with broad phenomenological implications.

Contribution

It introduces a unified framework linking photon-hidden photon mixing, mass mixing, and brane matter swapping, highlighting their conceptual similarities and potential equivalence.

Findings

Different mixing models are likely facets of the same underlying physics.

A global framework can unify phenomenological effects of various mixing mechanisms.

Implications for particle physics and cosmology are discussed.

Abstract

Numerous papers deal with the phenomenology related to photon-hidden photon kinetic mixing and with the effects of a mass mixing on particle-hidden particle oscillations. In addition, recent papers underline the existence of a geometrical mixing between branes which would allow a matter swapping between branes. These approaches and their phenomenologies are reminiscent of each other but rely on different physical concepts. In the present paper, we suggest there is no rivalry between these models, which are probably many faces of the same physics. We discuss some phenomenological consequences of a global framework.