Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with dimensional-regularization
Search options answers only
not deleted
user 8821
Dimensional regularization is a method of isolating divergencies in scattering amplitudes.
1
vote
The conditions for a shift in a loop momentum to be allowed
As long as the integral is defined, we have
$$\int_{-\infty}^\infty dx f(x) = \int_{-\infty}^\infty dx f(x+a) , \qquad a \in {\mathbb R}$$
In dimensional regularization, the loop integrals are all $UV …
- 27.7k
8
votes
Massless integrals in dim-reg
The problem with such an integral is that it is both UV and IR divergent. We therefore need to introduce two regulators (to regulate both divergences). To regulate the UV divergence, we use dimreg. To …
- 27.7k