Revisiting the $\Gamma(K \to e \nu)/\Gamma(K \to \mu \nu)$ ratio in supersymmetric unified models

  title={Revisiting the \$\Gamma(K \to e \nu)/\Gamma(K \to \mu \nu)\$ ratio in supersymmetric unified models},
  author={R. Fonseca and J. C. Rom{\~a}o and A. M. Teixeira},
  journal={arXiv: High Energy Physics - Phenomenology},
  • R. Fonseca, J. C. Romão, A. M. Teixeira
  • Published 2012
  • Physics
  • arXiv: High Energy Physics - Phenomenology
  • It has been pointed out that supersymmetric extensions of the Standard Model can induce significant changes to the theoretical prediction of the ratio $\Gamma(K\rightarrow e\nu)/\Gamma (K\rightarrow\mu\nu)\equiv R_{K}$, through lepton flavour violating couplings. In this work we carry out a full computation of all one-loop corrections to the relevant $\nu\ell H^{+}$ vertex, and discuss the new contributions to $R_{K}$ arising in the context of different constrained (minimal supergravity… CONTINUE READING

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