All Questions
Tagged with scattering reference-frames
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Justifying that the gold nucleus is at rest in a Rutherford experiment
This is an example on the Rutherford Experiment from Young and Freedman's University Physics.
In the last paragraph of the solution the book states that it is valid to assume that the gold nucleus ...
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How to identify fermion (ie. $e^-$, $\mu^-$)'s spin direction with its momentum direction?
Spin doesn't has classical corresponding concept. In QFT, we use Poincare group to systematically classify particles, from where we use spin. (ie. scalar, spin-$0$, fermion, spin-$\frac{1}{2}$) So how ...
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Dependence of Compton effect on frame of reference
I want to know whether Compton effect depends on the frame of reference or not.
The wavelength change is a thing, but does not depend on frame of reference since it depends only on $\theta$. But if I ...
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Angle between velocities: Elastic collision question in 3D
I have been given a scenario of a proton (particle 1) travelling with u1 = 3î+ 4j–6k and a Helium-3 nucleus (particle 2) travelling with u2= 3î+ 4j–2k. The two particles collide and the proton (...
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Scattering Amplitudes in Centre of Mass Frame
I'm reviewing page 59 of the QFT notes here and am a little confused by a reference frame argument. You can compute the second order probability amplitude term for nucleon-nucleon scattering to be
$$...
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