Publication Date
1997
Journal or Book Title
PHYSICAL REVIEW D
Abstract
We use dispersive techniques to address the behavior of the pion form factor as Q2 → ∞ and Q2 → 0. We perform the matching with the constraints of perturbative QCD and chiral perturbation theory in the high energy and low energy limits, leading to four sum rules. We present a version of the dispersive input which is consistent with the data and with all theoretical constraints. The results indicate that the asymptotic perturbative QCD limit is approached relatively slowly, and give a model independent determination of low energy chiral parameters.
Pages
7073-7076
Volume
56
Issue
11
Recommended Citation
Donoghue, JF and Na, ES, "Asymptotic limits and the structure of the pion form factor" (1997). PHYSICAL REVIEW D. 127.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/127
Comments
This is a pre-published version which is collected from arXiv. The published version is at http://prd.aps.org/pdf/PRD/v56/i11/p7073_1.