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arXiv · 2503.21885

$U$-spin conjugate $CP$ violation relations in bottom baryon decays

Bo-nan Zhang·Di Wang
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Abstract

Motivated by the first observation of $CP$ violation in baryon decays, we study the relations for $CP$ asymmetries of bottom baryon decays. It is found that all the $CP$ violation ratios of two $U$-spin conjugate decay channels satisfy a simple equation in the $U$-spin limit. As examples, we present the $U$-spin conjugate channels in the four-body decays of bottom baryons. The $CP$ violation ratios between them might provide predictions for unobserved channels and be tested in future experiments.

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Bo-nan Zhang, Di Wang. 2025-03-27. $U$-spin conjugate $CP$ violation relations in bottom baryon decays. https://doi.org/10.1016/j.physletb.2025.139674

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