CP Violation in Hyperon Decays from Supersymmetry
High Energy Physics - Phenomenology
2009-09-29 v1 High Energy Physics - Experiment
Abstract
It was pointed out recently that supersymmetry can generate flavor-changing gluonic dipole operators with sufficiently large coefficients to dominate the observed value of epsilon'/epsilon. We point out that the same operators contribute to direct CP violation in hyperon decay and can generate a CP violating asymmetry A(\Lambda^0_-) in the range probed by the current E871 experiment. Interestingly, models that naturally reproduce the relation lambda = sqrt{m_d/m_s} do not generate epsilon'/epsilon but could lead to an A(\Lambda^0_-) of O(10^{-3}).
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Cite
@article{arxiv.hep-ph/9909562,
title = {CP Violation in Hyperon Decays from Supersymmetry},
author = {Xiao-Gang He and Hitoshi Murayama and Sandip Pakvasa and G. Valencia},
journal= {arXiv preprint arXiv:hep-ph/9909562},
year = {2009}
}
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4 pages