A Sinister Extension of the Standard Model to SU(3)XSU(2)XSU(2)XU(1)

TL;DR

This paper proposes an extended Standard Model incorporating terafermions linked to ordinary fermions via a CP' operation, leading to large fermion masses, no strong CP violation, small neutrino masses, and a new dark matter candidate.

Contribution

It introduces a novel extension of the Standard Model with terafermions and a CP' symmetry, providing solutions for neutrino masses and dark matter.

Findings

No detectable strong CP violation in the model

Small Dirac neutrino masses are achieved

A new dark matter candidate as terafermion bound systems

Abstract

This paper describes work done in collaboration with Andy Cohen. In our model, ordinary fermions are accompanied by an equal number `terafermions.' These particles are linked to ordinary quarks and leptons by an unconventional CP' operation, whose soft breaking in the Higgs mass sector results in their acquiring large masses. The model leads to no detectable strong CP violating effects, produces small Dirac masses for neutrinos, and offers a novel alternative for dark matter as electromagnetically bound systems made of terafermions.