F-2(gamma) at low Q(2) and sigma(gamma gamma) at high energies

Citation
B. Badelek et al., F-2(gamma) at low Q(2) and sigma(gamma gamma) at high energies, ACT PHY P B, 30(6), 1999, pp. 1807-1815
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
0587-4254 → ACNP
Volume
30
Issue
6
Year of publication
1999
Pages
1807 - 1815
Database
ISI
SICI code
0587-4254(199906)30:6<1807:FALQAS>2.0.ZU;2-2
Abstract
The parametrisation of the photon structure function in the low Q(2) region is formulated. It includes the VMD contribution and the QCD improved parto n model component suitably extrapolated to the low Q(2) region. The paramet risation describes reasonably well existing experimental data on sigma(gamm a gamma) for real photons and the low Q(2) data on sigma(gamma*gamma). Pred ictions for sigma(gamma gamma) and for sigma(gamma*gamma) for energies whic h may be accesssible in future linear colliders are also given.