Gauge-Invariant Resummation Formalism for Two-Point Correlation Functions

Details Gauge-Invariant Resummation Formalism for Two-Point Correlation Functions Gauge-Invariant Resummation Formalism for Two-Point Correlation Functions

1996-05-23

arxiv.org/abs/hep-ph/9605385v1

Phys.Rev.D54:5315-5335,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

50 pages, LaTeX (axodraw.sty included)

Scientific paper

10.1103/PhysRevD.54.5315

The consistent description of unstable particles, renormalons, or other Schwinger--Dyson-type of solutions within the framework of perturbative gauge field theories necessitates the definition and resummation of off-shell Green's functions, which must respect several crucial physical requirements. A formalism is presented for resummation of off-shell two-point correlation functions, which is mainly based on arguments of analyticity, unitarity, gauge invariance and renormalizability. The analytic results obtained with various methods, including the background field gauges and the pinch technique are confronted with the physical requirements imposed; to one-loop order the pinch technique approach satisfies all of them. Using renormalization group arguments, we discuss issues of uniqueness of the resummation procedure related to the latter method.

Affiliated with

Also associated with

No associations

Rating

Gauge-Invariant Resummation Formalism for Two-Point Correlation Functions 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 Gauge-Invariant Resummation Formalism for Two-Point Correlation Functions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gauge-Invariant Resummation Formalism for Two-Point Correlation Functions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-463864