NA48 results on kaon and hyperon decays relevant to |VusV_{us}|

Abstract

New results from the NA48 experiment on kaon and hyperon decays relevant to Vus|V_us| are reported here. For charged kaons we present measurements of BR(K±π0e±ν)BR(K^{\pm} \rightarrow \pi^{0} e^{\pm}\nu) and BR(K±π0μ±ν)BR(K^{\pm} \rightarrow \pi^{0}\mu^{\pm}\nu). On neutral kaon decays we report the measurements of BR(KLπ+π)BR(K_{L} \rightarrow \pi^{+}\pi^{-}) and of KLπ±μνK_{L} \rightarrow \pi^{\pm}\mu^{\mp}\nu form factors slopes. For hyperons we present results on the BR(Ξ0Σ+eνˉe)BR(\Xi^{0} \rightarrow \Sigma^{+} e^{-}\bar{\nu}_e).New results from the NA48 experiment on kaon and hyperon decays relevant to |V_us| are reported here. For charged kaons we present measurements of BR(K+- -> pi0 e+- nu) and BR(K+- -> pi0 mu+- nu). On neutral kaon decays we report the measurements of BR(K_L -> pi+ pi-) and of K_L -> pi+- mu-+ nu form factors slopes. For hyperons we present results on the BR(Xi0 -> Sigma+ e- nu_e)

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This paper was published in CERN Document Server.

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