https://doi.org/10.1140/epjc/s10052-009-1212-y
Regular Article - Theoretical Physics
A simple model for the nuclear unintegrated gluon distribution
1
Conjunto Agrotécnico Visconde da Graça, CAVG, Universidade Federal de Pelotas, Caixa Postal 460, 96060-290, Pelotas, RS, Brazil
2
Centro de Ciências Exatas e Tecnológicas, Universidade Federal do Pampa, Campus de Bagé, Rua Carlos Barbosa, 96400-970, Bagé, RS, Brazil
* e-mail: magnus@if.ufrgs.br
Received:
25
August
2009
Published online:
24
November
2009
The solution of non-linear evolution equations for dense nuclear gluon density has been suggested as one of the relevant mechanisms of pA and AA collisions at collider energies. Here we study a simple parameterization for the unintegrated gluon distribution using the knowledge of asymptotic solutions of the Balitsky–Kovchegov equation, describing high-energy QCD in the presence of saturation effects. A satisfactory description of nuclear shadowing at small x is obtained and it allows us to understand the qualitative behavior shown by the data.
© Springer-Verlag / Società Italiana di Fisica, 2010