Determination of small x shadowing corrections at DESY HERA -: art. no. 054010

被引：16

作者：

Ayala, AL

Ducati, MBG

Gonçalves, VP

机构：

[1] Univ Fed Pelotas, Inst Fis & Matemat, BR-96010090 Pelotas, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

来源：

PHYSICAL REVIEW D | 1999年 / 59卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.59.054010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The recent F-2 data can be described using the DGLAP evolution equations with an appropriate choice of input distributions and the choice of the starting scale for the Q(2) evolution. We demonstrate in this paper that we cannot conclude that there are no significant shadowing corrections in the DESY HERA kinematic region using F-2 data only. In this paper we calculate the shadowing corrections to the longitudinal structure function F-L(x,Q(2)) and to the charm component of the proton structure function F-2(c)(x,Q(2)) in the HERA kinematic region using an eikonal approach. We demonstrate that the shadowing corrections to these observables an very large and that charm production is strongly modified at small x. Our results agree with the few recent HI data. [S0556-2821(99)05103-6].

引用

页数：8

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