SUDAKOV SUPPRESSION AND THE PROTON FORM-FACTOR

Authors
LI HN
Citation
Hn. Li, SUDAKOV SUPPRESSION AND THE PROTON FORM-FACTOR, Physical review. D. Particles and fields, 48(9), 1993, pp. 4243-4254
Citations number
37
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
48
Issue
9
Year of publication
1993
Pages
4243 - 4254
Database
ISI
SICI code
0556-2821(1993)48:9<4243:SSATPF>2.0.ZU;2-8
Abstract
The proton Dirac form factor is calculated using the modified factoriz ation formula proposed by Li and Sterman, which takes into account Sud akov suppression of elastic scattering for soft gluon exchange. The re sults for LAMBDA(QCD)=0.1-0.2 GeV are in good agreement with experimen tal data above the energy scale of 3 GeV. The calculation involves no phenomenological parameters such as a gluon mass and the conclusions a re insensitive to different models of wave functions.