Superworld without Supersymmetry

TL;DR

This paper explores a scenario where a superworld exists without supersymmetry, leading to a more general theory with distinct experimental signatures and potential for discovering new physics at the LHC.

Contribution

It introduces a non-supersymmetric superworld framework distinguished by a discrete symmetry, expanding the scope of possible new physics signals at colliders.

Findings

Potential dark matter candidate from superworld particles

Gauge coupling unification remains achievable without supersymmetry

Enhanced discovery reach for superworld particles at the LHC

Abstract

It is a possibility that the superworld (supersymmetric partners of our world) does exist without supersymmetry. The two worlds are being distinguished by an unbroken discrete $Z_2$ symmetry (similar to R-parity in supersymmetry). We lose the solution to the hierarchy problem. However, such a scenario has several motivations. For example, the lightest neutral superworld particle will be a candidate for dark matter. The other being, as in supersymmetry, it is possible to achieve gauge coupling unification. One major difference with the supersymmetric theory is that such a theory is much more general since it is not constrained by supersymmetry. For example, some of the gauge couplings connecting the Standard Model particles with the superpartners now become free Yukawa couplings. As a result, the final state signals as well as the limits on the superworld particles can be modified both qualitatively and quantitatively. The reach for these superworld particles at the Large Hadron Collider (LHC) can be much higher than the superpartners, leading to the increased possibility of discovering new physics at the LHC.