Determination of small x shadowing corrections at DESY HERA
The recent F2 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 Q2 evolution. We demonstrate in this paper that we cannot conclude that there are no significant shadowing corrections in the DESY HE...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1999 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repositorio: | Repositório Institucional da UFRGS |
| Idioma: | inglés |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/103925 |
| Acceso en línea: | http://hdl.handle.net/10183/103925 |
| Access Level: | acceso abierto |
| Palabra clave: | Espalhamento inelastico profundo Interacoes eletron-fonon Modelo de partons Teoria de perturbacao Cromodinâmica quântica |
| Sumario: | The recent F2 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 Q2 evolution. We demonstrate in this paper that we cannot conclude that there are no significant shadowing corrections in the DESY HERA kinematic region using F2 data only. In this paper we calculate the shadowing corrections to the longitudinal structure function FL(x,Q2) and to the charm component of the proton structure function F2 c (x,Q2) in the HERA kinematic region using an eikonal approach. We demonstrate that the shadowing corrections to these observables are very large and that charm production is strongly modified at small x. Our results agree with the few recent H1 data. [S0556-2821(99)05103-6] |
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