Pion form factor analysis using NLO analytic perturbation theory

Details Pion form factor analysis using NLO analytic perturbation theory Pion form factor analysis using NLO analytic perturbation theory

2004-10-18

arxiv.org/abs/hep-ph/0410245v1

Nucl.Phys.Proc.Suppl. 152 (2006) 245-248

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 3 figures embedded; uses espcrc2.tex. Invited talk presented at QCD04, 5-9 July 2004, Montpellier, France

Scientific paper

10.1016/j.nuclphysbps.2005.08.04

I present results for the pion's electromagnetic form factor in the spacelike region, which implement the most advanced perturbative information currently available for this observable in conjunction with a pion distribution amplitude that agrees with the CLEO data on the pion-photon transition form factor at the $1\sigma$ level. I show that using for the running strong coupling and its powers their analytic versions in the sense of Shirkov and Solovtsov, the obtained predictions become insensitive to the renormalization scheme and scale setting adopted. Joining the hard contribution with the soft part on account of local duality and respecting the Ward identity at $Q^2=0$, the agreement with the available experimental data, including expectations from planned experiments at JLab, is remarkable both in trend and magnitude. I also comment on Sudakov resummation within the analytic approach.

Affiliated with

Also associated with

No associations

Rating

Pion form factor analysis using NLO analytic perturbation theory 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 Pion form factor analysis using NLO analytic perturbation theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pion form factor analysis using NLO analytic perturbation theory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-398998