- #1
petergreat
- 267
- 4
I encountered a paper in which the authors presented parton-level cross sections as a function of these variables: incoming particle momenta, factorization scale, renormalization scale, and strong coupling constant at the renormalization scale. I used to think that QCD factorization scale should always be set to equal the renormalization scale.
When they are not equal, how does such a calculation proceed?
(Of course, the result is integrated with the parton distribution function at the factorization scale to give the final answer.)
When they are not equal, how does such a calculation proceed?
(Of course, the result is integrated with the parton distribution function at the factorization scale to give the final answer.)