2020 Impact factor 4.590
Particles and Fields
Eur. Phys. J. C 26, 35-43 (2002)
DOI: 10.1007/s10052-002-1021-z

A simple model for nuclear structure functions at small x in the dipole picture

N. Armesto

Departamento de Física, Módulo C2, Planta baja, Campus de Rabanales, Universidad de Córdoba, 14071 Córdoba, Spain

(Received: 5 June 2002 / Revised version: 27 June 2002 / Published online: 16 October 2002 )

A simple model for nuclear structure functions in the region of small x and small and moderate Q2 is presented. It is a parameter-free extension, in the Glauber-Gribov approach to nuclear collisions, of a saturation model for the nucleon. A reasonable agreement with experimental data on the ratios of nuclear structure functions is obtained. Nuclear effects in the longitudinal-to-transverse cross section ratios are found to be small. Predictions of the model for values of x smaller than those available to present experiments are given. The unintegrated gluon distribution and the behaviour of the saturation scale which result from this model are shown and discussed.

© Società Italiana di Fisica, Springer-Verlag 2002