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CP Violation in Hyperon Decays from Supersymmetry

Xiao-Gang He·Hitoshi Murayama·Sandip Pakvasa·G. Valencia
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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(Λ^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(Λ^0_-) of O(10^{-3}).

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Xiao-Gang He, Hitoshi Murayama, Sandip Pakvasa, G. Valencia. 1999-09-29. CP Violation in Hyperon Decays from Supersymmetry. https://doi.org/10.1103/physrevd.61.071701

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