Cargando…
First observation and branching fraction and decay parameter measurements of the weak radiative decay $\Xi^0 \to \Lambda e^{+}e^{-}$
The weak radiative decay $\Xi^0 \rightarrow \Lambda e^{+} e^{-}$ has been detected for the first time. We find 412 candidates in the signal region, with an estimated background of $15 \pm 5$ events. We determine the branching fraction $\cal{B}(\Xi^0 \rightarrow \Lambda e^{+} e^{-}) = [7.6 \pm 0.4_{s...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Lenguaje: | eng |
Publicado: |
2007
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2007.04.066 http://cds.cern.ch/record/1020202 |