The Pion form-factor: Sudakov suppressions and intrinsic transverse momentum

Jakob, R.; Kroll, P.

doi:10.1016/0370-2693(93)91642-Z

The Pion form-factor: Sudakov suppressions and intrinsic transverse momentum

R. Jakob
(
- Wuppertal U.
)
,
P. Kroll
(
- CERN
)

May, 1993

12 pages

Published in:

Phys.Lett.B 315 (1993) 463-470,
Phys.Lett.B 319 (1993) 545 (erratum)

e-Print:

hep-ph/9306259 [hep-ph]

DOI:

Report number:

CERN-TH-6900-93,
WU-B-93-19

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Abstract:

It is demonstrated that any attempt to calculate the perturbative QCD contribution to the pion form factor requires the inclusion of intrinsic transverse momentum besides Sudakov form factors. For momentum transfers of the order of a few GeV the intrinsic transverse momentum leads to a substantial suppression of the perturbative QCD contribution.

pi: form factor
form factor: pi
form factor: Sudakov
Sudakov: form factor
quark: transverse momentum
pi: wave function
dependence: momentum transfer
quantum chromodynamics: perturbation theory
numerical calculations

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