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GaloisFan
  • Member for 7 years, 10 months
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22 votes
3 answers
4k views

Why do (can) we impose local gauge invariance?

14 votes
1 answer
1k views

Chirality/helicity of anti-particles (again)

11 votes
1 answer
505 views

Geometric point of view of configuration space and Lagrangian mechanics

8 votes
1 answer
1k views

How a symmetry transformation acts on quantum fields

6 votes
0 answers
382 views

Ward identity for 'general' operator and current diagrams

6 votes
2 answers
174 views

Why is the "instanton map" surjective and do we compactify the space or not?

5 votes
0 answers
222 views

Another "real vs virtual particle" one: calculate the full diagram or $\sigma \times \mathrm{BR}$?

4 votes
0 answers
97 views

Why are non-perturbative solutions important and how to take them into account?

4 votes
1 answer
105 views

Degree of divergence of subdiagram

4 votes
1 answer
268 views

Subtraction in bare perturbation theory on Peskin's book

4 votes
1 answer
341 views

Doubt on the consistency condition of the secondary constraint of electrodynamics

4 votes
1 answer
216 views

Total vs extended action on constrained dynamics

3 votes
0 answers
279 views

S-matrix branch cuts properties

3 votes
1 answer
289 views

Renormalization group applied to a simple QCD problem

3 votes
0 answers
60 views

Why doesn't the gluon fusion channel for Higgs production diverge?

3 votes
0 answers
125 views

Equivalence between wilsonian and non-wilsonian RGE on QFT

3 votes
1 answer
103 views

Can the gauge boson respective of a spontaneously broken generator remain massless in the context of the Higgs Mechanism?

2 votes
2 answers
365 views

Locality of interactions and their high energy behavior

2 votes
1 answer
481 views

Nonlinear symmetry realization: what is it for and caveats?

2 votes
0 answers
133 views

Yet another 'dimensional regularization vs. the Hierarchy Problem' one

2 votes
0 answers
49 views

Doesn't vector bosons enter in the formula for the calculation of beta function coefficients?

2 votes
1 answer
206 views

Factorization of exponential of broken generators in parametrization of scalar multiplet in non-abelian SSB

2 votes
1 answer
248 views

Different values for same integral calculated via contour integration

2 votes
2 answers
1k views

General form for functional derivatives

2 votes
1 answer
328 views

Hamilton's equations of motion on Dirac's formalism

2 votes
0 answers
189 views

Why isn't the triplet representation of $SU(2)$ symmetric?

2 votes
1 answer
230 views

Reference for proof of renormalizability

2 votes
3 answers
122 views

Appropriate space in second quantization

2 votes
0 answers
79 views

Regularization methods' equivalence and the hierarchy problem

2 votes
0 answers
213 views

Dimensional analysis and more: Order of divergences in the $\phi^4$ theory