Twin and Mirror Symmetries from Presymmetry

TL;DR

This paper proposes that extending presymmetry beyond the Standard Model naturally leads to twin or mirror symmetries, providing a robust framework that predicts partner particles and offers a testable approach to new physics.

Contribution

It introduces an extended presymmetry framework that accounts for twin and mirror partners, linking them to fundamental symmetries and naturalness in particle physics.

Findings

Full duplication of fermions and gauge bosons predicted

Twin and mirror matter search can test presymmetry

Robustness of twin/mirror symmetries independent of Higgs discovery

Abstract

We argue that presymmetry, a hidden predynamical electroweak quark-lepton symmetry that explains the fractional charges and triplication of families, must be extended beyond the Standard Model as to have a residual presymmetry that embraces partner particles and includes the strong sector, so accounting for the twin or mirror partners proposed to alleviate the naturalness problem of the weak scale. It leads to the full duplication of fermions and gauge bosons of the Standard Model independently of the ultraviolet completion of the theory, even if the Higgs particle is discarded by experiment, which adds robustness to twin and mirror symmetries. The established connection is so strongly motivated that the search for twin or mirror matter becomes the possible test of presymmetry. If the physics beyond the Standard Model repairs its left-right asymmetry, mirror symmetry should be the one realized in nature.