A Resummable beta-Function for Massless QED

Details A Resummable beta-Function for Massless QED A Resummable beta-Function for Massless QED

2008-01-16

arxiv.org/abs/0801.2462v3

Phys.Lett.B662:237-243,2008

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 2 figs; v2 published version, some very minor rewording; v3 typo corrected

Scientific paper

10.1016/j.physletb.2008.03.006

Within the set of schemes defined by generalized, manifestly gauge invariant exact renormalization groups for QED, it is argued that the beta-function in the four dimensional massless theory cannot possess any nonperturbative power corrections. Consequently, the perturbative expression for the beta-function must be resummable. This argument cannot be extended to flows of the other couplings or to the anomalous dimension of the fermions and so perturbation theory does not define a unique trajectory in the critical surface of the Gaussian fixed point. Thus, resummability of the beta-function is not inconsistent with the expectation that a non-trivial fixed point does not exist.

Affiliated with

Also associated with

No associations

Rating

A Resummable beta-Function for Massless QED 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 A Resummable beta-Function for Massless QED, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Resummable beta-Function for Massless QED will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-159742