A new measurement of the branching ratio of K-S -> gamma gamma

A new measurement of the branching ratio of K-S -> gamma gamma

The decay rate of K(S) → γγ has been measured with the NA48 detector at the CERN SPS. A total of 149 K(S) → γγ events have been observed. The branching ratio is determined to be (2.58 ± 0.36(stat) ± 0.22(sys)) x 10-6. (C) 2000 Elsevier Science B.V.

Bibliographic Details
Main Authors: Lai, A, Marras, D, Bevan, A, Dosanjh, R, Gershon, T, Hay, B, Kalmus, G, Lazzeroni, C, Munday, D, Olaiya, E, Parker, M, White, T, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Donszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G
Format: Journal article
Language:English
Published: 2000

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