Non-standard neutrino interactions in K^{+}\toπ^{+}ν\barν and D^{+}\toπ^{+}ν\barν decays

Abstract

We study the contributions of the non-standard neutrino interactions (NSIs) to the rare meson decays of $K^{+}\to {\pi }^{+}\nu \bar{\nu }$ and $D^{+}\to {\pi }^{+}\nu \bar{\nu }$. We show that both decays could provide strong constraints on the free parameters in the NSIs. We point out that the branching ratio of $D^{+}\to {\pi }^{+}\nu \bar{\nu }$ could be at the level of $10^{-8}$.

arXiv comment7 pages and 2 figures, reference added, version to appear in Phys. Rev. D

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• Neutrino factory optimization for non-standard interactions
• Flavors and Phases in Unparticle Physics
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• New Physics Through Rare Decays Of Mesons
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• Study of Nonstandard Interactions in Rare Decays of Hyprons with Missing Energy
• Metastable Supersymmetry Breaking and Minimal Gauge Mediation on Branes