1. D. Stern:Phys. Rev.,128, 389 (1962).
2. B. Aubert, L. Behr, J. P. Lowys, P. Mittner, S. Coletti, M. di Corato andA. Pullia:Procedings of the Sienna International Conference on Elementary Particles (1963), p. 20.
3. B. M. K. Nefkens, A. Abashian, R. J. Abrams, D. W. Carpenter, G. P. Fisher andJ. H. Smith:Phys. Lett.,19, 706 (1966).
4. Γ L (all)=1.99⋅10’s−.G. H. Thrilling: inProceedings of the International Conference on Weak Interactions, Argonne, 1965.
5. This value is calculated on the assumption that the decay follows the phase-space distribution which does not differ significantly from some direct decay models. See ref. (6,7).