More than one ultimate speed and superluminal neutrinos

TL;DR

The paper proposes that superluminal neutrinos suggest the existence of additional ultimate speeds beyond light speed, leading to potential new effects in the standard model that can be tested with precise electroweak measurements.

Contribution

It introduces a reformulation of the standard model incorporating an extra maximum speed, offering a novel theoretical framework for superluminal neutrinos.

Findings

Potential new effects at the order of 10^{-5}

Electroweak observables could validate the scenario

Reformulation of the leptonic sector with an additional speed

Abstract

It is suggested that recent superluminal neutrinos from the OPERA collaboration might indicate that there are other ultimate speeds than usual speed of light in our universe. The leptonic sector of the standard model (SM) is reformulated incorporating with new ultimate speeds. In minimal cases where there is another maximum speed $c'$ which equals to the speed of the OPERA neutrinos, new effects would appear at the level of ${\cal O}(10^{-5})$. Improved precisions for the electroweak observables would check the validity of this scenario.