DOI: 10.1007/s10052-002-1021-z
A simple model for nuclear structure functions at small x in the dipole picture
N. ArmestoDepartamento 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 )
Abstract
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
