Soft Perturbative QCD

Details Soft Perturbative QCD Soft Perturbative QCD

1999-08-30

arxiv.org/abs/hep-ph/9908501v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at the workshop on Exclusive and Semi-exclusive Processes at High Momentum Transfer, Jefferson Lab, USA, May 1999.

Scientific paper

There are indications of a faith transition in QCD: The strong coupling may freeze at a sufficiently low value to make PQCD relevant even in the confining regime. The properties of PQCD at low Q^2 depend on the asymptotic field configuration assumed at t=\pm\infty. A change in the i\epsilon prescription of the free propagators is equivalent to including quarks and gluons in the initial and final states. Perturbative expansions thus generated are formally as justified as standard PQCD and may turn out to be phenomenologically relevant. I discuss examples of the effects of such propagator modifications in QED and QCD.

Affiliated with

Also associated with

No associations

Rating

Soft Perturbative QCD 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 Soft Perturbative QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft Perturbative QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-200168