Emergent SUSY Theories: QED, SM & GUT

TL;DR

This paper explores how local gauge symmetries and gauge fields can emerge from spontaneous breaking of spacetime symmetries like supersymmetry, with implications for models like the Standard Model and GUTs.

Contribution

It demonstrates that emergent local symmetries can naturally arise from spontaneously broken supersymmetry within supersymmetric QED and extended models.

Findings

Emergent gauge symmetries from supersymmetry breaking.

Standard Model and GUTs can naturally emerge at high energies.

Supersymmetry breaking influences gauge symmetry emergence.

Abstract

It might be expected that only global symmetries are fundamental symmetries of Nature, whereas local symmetries and associated massless gauge fields could solely emerge due to spontaneous breaking of underlying spacetime symmetries involved, such as relativistic invariance and supersymmetry. This breaking, taken in the form of the nonlinear sigma-model type pattern for vector fields or superfields, puts essential restrictions on geometrical degrees of freedom of a physical field system that makes it to adjust itself in such a way that its global internal symmetry G turns into the local symmetry G_{loc}. Remarkably, this emergence process may naturally be triggered by spontaneously broken supersymmetry, as is illustrated in detail by an example of a general supersymmetric QED model which is then extended to electroweak models and grand unified theories. Among others, the U(1)xSU(2) symmetrical Standard Model and flipped SU(5) GUT appear preferable to emerge at high energies.