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We analyze the impact of Higgs-mediated amplitudes on the rare decays KL ->pi0 nu nu-bar and K+ -> pi+ nu nu-bar in the MSSM with large tan(beta) andgeneral flavour mixing. We point out that, going beyond the minimal flavourviolation hypothesis, Z-penguin amplitudes generated by charged-Higgs exchangecan induce sizable modifications of K -> pi nu nu-bar rates. Interestingly,these effects scale as tan^4(beta) at the amplitude level. For large values oftan(beta), this mechanism allows deviations from the SM expectations even fortiny (CKM-type) off-diagonal mixing terms in the right-handed squark sector.Comment: 9 pages, 2 figure

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Higgs-mediated<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>K</mml:mi><mml:mo>→</mml:mo><mml:mi>π</mml:mi><mml:mi>ν</mml:mi><mml:mover accent="true"><mml:mi>ν</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>in the MSSM at large<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>tan</mml:mi><mml:mo>﻿</mml:mo><mml:mi>β</mml:mi></mml:math>

Higgs-mediatedK→πνν¯in the MSSM at largetan﻿β

Higgs-mediatedK→πνν¯in the MSSM at largetanβ