CP violation in hyperon decays from supersymmetry

Xiao-Gang He, Hitoshi Murayama, Sandip Pakvasa, G. Valencia

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18 Citations (Scopus)


It was pointed out recently that supersymmetry can generate flavor-changing gluonic dipole operators with sufficiently large coefficients to dominate the observed value of ε′/ε. 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 λ = md/ms do not generate ε′/ε but could lead to an A(Λ_0) of O(10-3).

Original languageEnglish
Article number071701
Pages (from-to)1-4
Number of pages4
JournalPhysical Review D
Issue number7
Publication statusPublished - 1 Apr 2000
Externally publishedYes

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