# T violation in radiative $\\beta$ decay and electric dipole moments

Source: [T violation in radiative $\\beta$ decay and electric dipole moments](<https://www.sota2.com/research/paper/68fa328e1e209131ce88907f>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T19:34:06.785Z

Authors: W.G. Dekens, K.K. Vos

Published: 2015-02-16T17:08:38.000Z

## Abstract

In radiative $\\beta$ decay, $T$ violation can be studied through a spin-independent $T$-odd correlation. We consider contributions to this correlation by beyond the standard model (BSM) sources of $T$-violation, arising above the electroweak scale. At the same time such sources, parametrized by dimension-6 operators, can induce electric dipole moments (EDMs). As a consequence, the manifestations of the $T$-odd BSM physics in radiative $\\beta$ decay and EDMs are not independent. Here we exploit this connection to show that current EDM bounds already strongly constrain the spin-independent $T$-odd correlation in radiative $\\beta$ decay.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1502.04629>)

[PDF](<https://arxiv.org/pdf/1502.04629.pdf>)