(a) Does the presence of a neutrino among the decay products of a particle necessarily mean that the decay occurs via the weak interaction? (P) Do all decays via the weak interaction produce a neutrino? Explain.
Step-by-step solution Step 1 of 3 CONCEPT Neutrino It is an electrically neutral and weakly interacting elementary subatomic particle with a half-integer spin. It has a small, but nonzero mass. It would be able to pass through ordinary matter by remaining almost unaffected. As it has no charge, the neutrino is not affected by the electromagnetic force. Step 2 of 3 Step 3 of 3