ANALYSIS OF LOW-X GLUON DENSITY FROM THE F2 SCALING VIOLATIONS

Citation
Mbg. Ducati et Vpb. Goncalves, ANALYSIS OF LOW-X GLUON DENSITY FROM THE F2 SCALING VIOLATIONS, Physics letters. Section B, 390(1-4), 1997, pp. 401-404
Citations number
18
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
390
Issue
1-4
Year of publication
1997
Pages
401 - 404
Database
ISI
SICI code
0370-2693(1997)390:1-4<401:AOLGDF>2.0.ZU;2-9
Abstract
We present an analysis of the current methods of the approximate deter mination of the gluon density G(x,Q(2)) at low x from the scaling viol ations of the proton structure function F-2(x,Q(2)). The gluon density is obtained from the GLAP equation by expansion at distinct points of expansion. We show that the different results given by the proposed m ethods can be obtained from one new expression considering the adequat e points of expansion. It is shown in which case the approximate deter mination of G(x,Q(2)) is reasonable.