The Equivalence Principle in the Non-baryonic Regime

TL;DR

This paper investigates the empirical validity of the equivalence principle for non-baryonic matter across various experimental contexts, providing new bounds on potential violations in leptonic and kaon sectors.

Contribution

It introduces new parameter constraints on equivalence principle violations using diverse experimental data within the TH extepsilon extmu formalism.

Findings

New bounds on EVPs in leptonic sector

Constraints on EVPs in kaon sector

Analysis across multiple experimental methods

Abstract

We consider the empirical validity of the equivalence principle for non-baryonic matter. Working in the context of the TH\epsilon\mu formalism, we evaluate the constraints experiments place on parameters associated with violation of the equivalence principle (EVPs) over as wide a sector of the standard model as possible. Specific examples include new parameter constraints which arise from torsion balance experiments, gravitational red shift, variation of the fine structure constant, time-dilation measurements, and matter/antimatter experiments. We find several new bounds on EVPs in the leptonic and kaon sectors.