Determining Momentum Components After Collision in CM Frame
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4.1.3 Determining Momentum Components After Collision in CM Frame
The energy and total momentum of the Moller and scattered electron remain the same under a rotation in any frame of reference. After the collision, these quantities remain the same, but the x, y, z components change.
In this frame, we can cycle through values of theta from 90 to 180 degrees which physically correspond to a stationary electron being impinged by an electron.
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