1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Fermion decay

  1. May 20, 2015 #1
    1. The problem statement, all variables and given/known data
    9oLMYdq.jpg

    2. Relevant equations


    3. The attempt at a solution
    I've started from writing out the amplitude. Here I know that fermion has definite helicity so I can't sum over spins but I should input explicit forms of spinors. Am I correct? How to do this?
    I would be grateful for helping me with this step. I'll manage the rest of the problem.
     
  2. jcsd
  3. May 20, 2015 #2

    Orodruin

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Gold Member

    You insert the expression for a spinor of the appropriate spin. It should be described in your textbook how such a spinor looks.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Fermion decay
  1. Fermion occupation (Replies: 2)

  2. Dirac Fermions (Replies: 0)

  3. Three fermions (Replies: 1)

Loading...