33.4 Exercise 16

The decay mode of the positive tau is $\tau^{+ } \rightarrow \mu^{+ } + \nu_{\mu} + \left(\overset{-}{\nu}\right)_{\tau}$.

(a) What energy is released?

(b) Verify that charge and lepton family numbers are conserved.

(c) The $\tau^{+ }$ is the antiparticle of the $\tau^{- }$.Verify that all the decay products of the $\tau^{+ }$ are the antiparticles of those in the decay of the $\tau^{- }$ given in the text.