Please explain

Asked by  | 21st Mar, 2009, 11:18: AM

Expert Answer:

The neutrino hypothesis was not invoked merely to provide a satisfactory solution to the energy conservation
problem associated with beta decay. It also provided a solution to a similar difficulty connected with
the conservation of angular momentum in beta decay. The neutron, proton ande lectron of each
have an angular momentum of + & or -3 in the usual units of hi277 (where h is Planck’s constant).
According to equation (1) it is impossible for angular momentum to be conserved. If, however, a neutrino
of spin +B or -+ units is produced with the beta particle, the well-known law of conservation ofangular momentum can be satisfied.

np + β- ... (1)

Answered by  | 28th Mar, 2009, 05:40: PM

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