Question

Indicate the reasons why the following processes are forbidden:

Answer 1

is forbidden by energy conservation. The mass difference

(The process 1 → 2 + 3 will be allowed only if m₁> m₂ + m₃ .) 

is disallowed by conservation of baryon number. 

is forbidden by conservation of charge 

is forbidden by strangeness conservation. 

 is forbidden by conservation of muon number (or lepton number). 

is forbidden by the separate conservation of muon number as well as lepton number.