Leptonic decay of Λ0and Σ−hyperons

Autor: Aubert, B., Brisson, B., Hennessy, J., Mittner, P., Six, J., Baglin, C., Bloch, M., Bressy, A., Hennessy, J., Lagarrigue, A., Mittner, P., Orkin-Lecourtois, A., Rançon, P., Rousset, A., Sauteron, X.
Zdroj: Il Nuovo Cimento; August 1962, Vol. 25 Issue: 3 p479-485, 7p
Abstrakt: A systematic search for leptonic decays of Λ0and Σ−hyperons has been carried out in a I meter heavy-liquid bubble chamber. 8Λβ0and no Λα0or Σβαhave been found. The total number of Λ0was ∼3 200. After correction for detection efficiency, this gives for the branching ratioρ=N(Λβ0)/N(Λtot0)=(0.29−12+15%). This seems definitely in disagreement with the simple extension of theV-Atheory to this type of strangeness-nonconserving decay.
Databáze: Supplemental Index