The decay rate of K-S --> gamma gamma has been measured with the NA48 detector at the CERN SPS. A total of 149 K-S --> gamma gamma events have been observed. The branching ratio is determined to be (2.58 +/- 0.36(stat) +/- 0.22(sys)) x 10(-6).
A new measurement of the branching ratio of KS -> γγ
MARTELLI, FILIPPO;VELTRI, MICHELE;
2000
Abstract
The decay rate of K-S --> gamma gamma has been measured with the NA48 detector at the CERN SPS. A total of 149 K-S --> gamma gamma events have been observed. The branching ratio is determined to be (2.58 +/- 0.36(stat) +/- 0.22(sys)) x 10(-6).File in questo prodotto:
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