The Perturbative pion form-factor with Sudakov suppression

Li, Hsiang-nan; Sterman, George F.

doi:10.1016/0550-3213(92)90643-P

The Perturbative pion form-factor with Sudakov suppression

Mar, 1992

12 pages

Published in:

Nucl.Phys.B 381 (1992) 129-140

Published: 1992

DOI:

10.1016/0550-3213(92)90643-P

Report number:

ITP-SB-92-10

reference search527 citations

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Abstract: (Elsevier)

We give a modified perturbative expression for the pion electromagnetic form factor in perturbative QCD, which includes Sudakov suppression of the elastic scattering of quarks that are isolated in space. Beyond momentum transfers of 20Λ QCD the perturbative calculation becomes relatively insensitive to soft gluon exchange. Our analysis involves no phenomenological parameters such as a gluon mass, and may be applied to the proton form factor.

pi: form factor
form factor: pi
form factor: Sudakov
Sudakov: form factor
form factor: asymptotic behavior
asymptotic behavior: form factor
form factor: momentum transfer
momentum transfer: form factor
elastic scattering: parton
parton: elastic scattering

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