Long-distance contributions in $ K \rightarrow \pi l^+ l^-$ Decays

Samuel Friot (1, 2, 3) , David Greynat (1, 3)

1 CPT - Centre de Physique Théorique - UMR 6207
2 LM-Orsay - Laboratoire de Mathématiques d'Orsay
3 CPT - Centre de Physique Théorique - UMR 7332

This talk gives a short summary of some work~\cite{FGEdeR04} realized in collaboration with E. de Rafael and concerning $K\ra\pi \ell^+ \ell^-$ decays, in a combined framework of Chiral Perturbation Theory and Large--$N_c$ QCD under the dominance of a minimal narrow resonance structure.

Mots clés: Rare K decays; Chiral Perturbation Theory; Large--$N_c$ QCD

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Samuel Friot, David Greynat. Long-distance contributions in $ K \rightarrow \pi l^+ l^-$ Decays. 2005. ⟨hal-00005119⟩