Lorentz symmetry violation, dark matter and dark energy

TL;DR

This paper reviews experimental bounds on Lorentz symmetry violation and explores their implications for cosmology, dark matter, and dark energy, proposing superbradyons as potential fundamental constituents of the universe.

Contribution

It discusses the current experimental constraints on Lorentz symmetry violation and introduces superbradyons as novel candidates for dark matter and dark energy.

Findings

Significant experimental constraints on Lorentz symmetry violation exist.

Allowed Lorentz violation patterns could influence the origin of the universe.

Superbradyons may serve as fundamental constituents of vacuum and matter.

Abstract

Taking into account the experimental results of the HiRes and AUGER collaborations, the present status of bounds on Lorentz symmetry violation (LSV) patterns is discussed. Although significant constraints will emerge, a wide range of models and values of parameters will still be left open. Cosmological implications of allowed LSV patterns are discussed focusing on the origin of our Universe, the cosmological constant, dark matter and dark energy. Superbradyons (superluminal preons) may be the actual constituents of vacuum and of standard particles, and form equally a cosmological sea leading to new forms of dark matter and dark energy.