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 K(S) --> gamma gamma.
ANZIVINO, Giuseppina;IMBERGAMO, ERMANNO;NAPPI, Aniello;PICCINI, Mauro
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:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
