Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Energy difference

  1. Jun 12, 2009 #1
    Suppose an antimatter at lower energy(K.E) collides with a matter in higher energy then what will be the output.
  2. jcsd
  3. Jun 12, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper

    two gamma rays with different energy..

    you can always transform it to the centre of momentum frame, so a positron impinging an electron at rest in lab-frame, will result in two back-to-back gamma rays in their centre of mass frame, which you then transform back to the lab frame. Simple relativistic kinematics problem.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook