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Precision measurement of the \(\Xi^0\) mass and the branching ratios of the decays \(\Xi^0\rightarrow\Lambda\gamma\) and \(\Xi^0 \rightarrow\Sigma^0\gamma\)

  • The NA48 Collaboration
  • V. Fanti et al.
Experimental physics

Abstract.

A new precision measurement of the \(\Xi^0\) mass has been performed at the NA48 experiment at the CERN SPS. The value obtained is [1314.82\(\pm\)0.06 (stat.) \(\pm\)0.2 (syst.)]\,\mbox{MeV/c}\(^2\). The branching ratios of \(\Xi^0\) radiative decays have been measured as: Br\((\Xi^0\rightarrow\Lambda\gamma)=[1.90\pm0.34 (stat.) \pm0.19 (syst.)] \cdot 10^{-3}\) and Br\((\Xi^0\rightarrow\Sigma^0\gamma)=[3.14\pm0.76 (stat.)\pm0.32 (syst.)]\cdot 10^{-3}\).

Keywords

Precision Measurement Radiative Decay NA48 Experiment 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • The NA48 Collaboration
  • V. Fanti et al.
    • 1
  1. 1.Dipartimento di Fisica dell'Università e Sezione dell'INFN di Cagliari, 09100 Cagliari, Italy IT

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