Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-09-27
Int.J.Mod.Phys.E16:1681-1685,2007
Physics
High Energy Physics
High Energy Physics - Theory
6 pages
Scientific paper
10.1142/S0218301307006095
Two approaches to renormalization-group improvement are examined: the substitution of the solutions of running couplings, masses and fields into perturbatively computed quantities is compared with the systematic sum of all the leading log (LL), next-to-leading log (NLL) etc. contributions to radiatively corrected processes, with n-loop expressions for the running quantities being responsible for summing N^{n}LL contributions. A detailed comparison of these procedures is made in the context of the effective potential V in the 4-dimensional O(4) massless $\lambda \phi^{4}$ model, showing the distinction between these procedures at two-loop order when considering the NLL contributions to the effective potential V.
Chishtie Farrukh A.
Elias Victor
Mann Robert B.
McKeon Dennis G. C.
~Steele ~G. T.
No associations
LandOfFree
On the Standard Approach to Renormalization Group Improvement does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the Standard Approach to Renormalization Group Improvement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Standard Approach to Renormalization Group Improvement will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-531883