Recent results from the NA48 experiment at CERN

The NA48/2 experiment presents a final result of the charged kaon semileptonic decays form factors measurement based on 4.28 million $K_{e3}^{\pm }$ and 2.91 million $K_{{\mu}3}^{\pm }$ selected decays collected in 2004. The result is competetive with other measurements in $K_{{\mu}3}^{\pm }$ mode and has a smallest uncertainty for $K_{e3}^{\pm }$, that leads to the most precise combined $K_{l3}^{\pm }$ result and allows to reduce the form factor uncertainty of |V_US|. The NA48/2 experiment at CERN collected a very large sample of charged kaon decays into multiple final states. From this data sample we have reconstructed about 1663 events of the very rare decay K^± → μ^±νe⁺e⁻ over almost negligible background in the region with m(e⁺e⁻) above 140 MeV, which is of great interest in Chiral Perturbation Theory. We present the m_ee spectrum and a model-independent measurement of the decay rate for this region.