Eldara
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Im stuck on the first question of one of my homework sheets. Partly due to me being horrific at particle physics and lack of sleep (yay exam period) i just can't figure out what's happening and just been staring at it for an hour.
Sheet: https://docs.google.com/file/d/0B6FGt5Eo0GHUdmpMbnhsVlU1QzA/edit
Starting with question 1.
If you re arrange (2) you can get
wx^2 = -Q^2 +mp^2 + 2mpv.
Using M = E - K
I can then go to
Wx^2 = -Q^2 + mp^2 + 2v(Ep-Kp)
This is where i hit a wall as it wants me to show
Wx^2 = -Q^2 + m^2 + Ep (E-E') -2kp(k=k')
it then asks me to use (2) again but i already sued that trying to get to the above.
TL;DR I am confused ;(
Sheet: https://docs.google.com/file/d/0B6FGt5Eo0GHUdmpMbnhsVlU1QzA/edit
Starting with question 1.
If you re arrange (2) you can get
wx^2 = -Q^2 +mp^2 + 2mpv.
Using M = E - K
I can then go to
Wx^2 = -Q^2 + mp^2 + 2v(Ep-Kp)
This is where i hit a wall as it wants me to show
Wx^2 = -Q^2 + m^2 + Ep (E-E') -2kp(k=k')
it then asks me to use (2) again but i already sued that trying to get to the above.
TL;DR I am confused ;(