CP violation in decays into states with neutral kaons
High Energy Physics - Phenomenology
2025-09-10 v1 High Energy Physics - Experiment
Abstract
CP violation in the kaon system can manifest itself in decays to final states containing neutral kaons. The effect is governed by an efficiency function that reflects the specific experimental setup. We demonstrate that this efficiency function factorizes into two components: the kaon energy spectrum and a universal detector-dependent factor. We show that matter effects on kaon oscillations can have a significant effect on CP asymmetries. We provide estimates of the theoretical prediction for some such CP asymmetries for a Belle II-type experiment.
Cite
@article{arxiv.2509.07071,
title = {CP violation in decays into states with neutral kaons},
author = {Yuval Grossman and Paolo Leo and Alberto Martini and Guglielmo Papiri and Armine Rostomyan},
journal= {arXiv preprint arXiv:2509.07071},
year = {2025}
}
Comments
29 pages, 5 figures