Measurement of the branching ratio of the decay Ξ0→Σ+μ−ν

Research output: Contribution to journalArticle


  • NA48/1 Collaboration

Colleges, School and Institutes


From the 2002 data taking with a neutral kaon beam extracted from the CERN-SPS, the NA48/1 experiment observed 97 $\Xi^{0}\rightarrow \Sigma^{+} \mu^{-} \bar{\nu}_{\mu}$ candidates with a background contamination of $30.8 \pm 4.2$ events. From this sample, the BR($\Xi^{0}\rightarrow \Sigma^{+} \mu^{-} \bar{\nu}_{\mu}$) is measured to be $(2.17 \pm 0.32_{\mathrm{stat}}\pm 0.17_{\mathrm{syst}})\times10^{-6}$.


Original languageEnglish
Pages (from-to)105-110
JournalPhysics Letters B
Issue number1-3
Early online date29 Jan 2013
Publication statusPublished - 13 Mar 2013