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tomtom1-4
  • Member for 2 years, 8 months
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  • Germany
14 votes
1 answer
453 views

Why does pair production only occur in an electric but not a magnetic field?

11 votes
3 answers
1k views

How does a booster work in a particle accelerator like the LHC?

5 votes
1 answer
291 views

Radiation field of a scattering experiment moves faster than light

3 votes
1 answer
209 views

Why is the anti-commutation relation $\lbrace \psi_a(x), \bar{\psi}_b(y) \rbrace = 0$ enough to ensure causality?

2 votes
2 answers
157 views

What is the velocity $u^\mu$ in the stress-energy-tensor of a perfect fluid?

1 vote
1 answer
54 views

Transversality of compton scattering amplitude for off-shell photons

1 vote
0 answers
43 views

Why do the counterterms of different Green's functions not interfere with each other and destroy renormalisation?

1 vote
0 answers
81 views

Equations of motion of classical chromodynamics with Yang-Mills theory

0 votes
2 answers
190 views

Transforming covariant and contravariant derivatives