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 268183
Dimensional regularization is a method of isolating divergencies in scattering amplitudes.
5
votes
Accepted
Limit of $d\rightarrow 4$ of a function in Peskin & Schroeder
As other terms are trivial, I will calculate $\displaystyle \lim_{d \to 4}\frac{1-b^{d-4}}{d-4}$ only. Let $x:=d-4$, then lim becomes
$\displaystyle \lim_{x \to 0}\frac{1-b^x}{x-0}=-\frac{db^x}{dx}|_{ …
- 435