Color-Restoration Phase Transitions as a Gravitational-Wave Probe of Leptoquark Neutrino-Mass Models
How the same minimal leptoquark model built to radiatively generate neutrino masses can be tested through cosmology rather than colliders: in the early Universe it can break and then restore SU(3) color symmetry via a first-order phase transition, and that transition radiates a stochastic gravitational-wave background. Scanning the model shows a detectable mHz-0.1 Hz signal (LISA/BBO/DECIGO) tightly correlated with color-restoration and leptoquark masses near 1.5 TeV, turning a flavor-physics model into a falsifiable GW prediction.
Gravitational waves from color restoration in a leptoquark model of radiative neutrino masses
A minimal two-scalar-leptoquark extension of the Standard Model — the smallest model that radiatively (one-loop) generates Majorana neutrino masses while satisfying ~100 flavor-physics constraints — …