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5 votes
1 answer
67 views

$ \pi^0\to \gamma\gamma$ parity conservation

3 votes
1 answer
190 views

Zero interference between disconnected and connected diagrams in $2\to 4$ scattering in $\phi^6$ theory

2 votes
1 answer
211 views
+50

Missing counterterms in $\phi^3$ + $\phi^4$ theory in 1PI effective action

7 votes
1 answer
322 views

Reference on partial wave expansion in the context of QFT

2 votes
1 answer
241 views

Product of Lorentz invariant factors may be Lorentz non-invariant

27 votes
3 answers
4k views

The path integral and Feynman diagrams

5 votes
2 answers
412 views

Explicit quantization of free fermionic field

3 votes
1 answer
349 views

Is there really a strong CP problem?

0 votes
1 answer
50 views

Square of the Feynman amplitude for $a +b\to c+d$ and its reverse

-1 votes
2 answers
69 views

Can the Strong CP problem be explained by the cancellation of quark electric dipoles by dipoles from some as yet undetected matter surrounding quarks?

3 votes
0 answers
245 views

Chirality oscillations in weak interaction

7 votes
2 answers
1k views

Hermitian conjugation in Radial Quantization

2 votes
1 answer
37 views

Phase Coherence in the BCS wavefunction and the Cooper Pair Wavefunction

2 votes
2 answers
233 views

It doesn't seem like energy is conserved for "input-output theory" of a cavity

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