DOI 10.1007/s100529801001
Interpolating between soft and hard dynamics
in deep inelastic scattering
P. Desgrolard1 - L. Jenkovszky2 - F. Paccanoni3
1 Institut de Physique Nucléaire de Lyon, IN2P3-CNRS et
Université Claude Bernard, F-69622 Villeurbanne Cedex, France
(e-mail: desgrolard@ipnl.in2p3.fr)
2 Bogolyubov Institute for Theoretical Physics, Kiev-143, Ukraine
(e-mail: jenk@bitp.kiev.ua)
3 Dipartimento di Fisica, Universitá di Padova,
Istituto Nationale di Fisica Nucleare, Sezione di Padova,
via F.Marzolo,
I-35131 Padova, Italy
(e-mail: paccanoni@pd.infn.it)
Received: 9 March 1998 / Revised version: 26 May 1998 / Published online: 5 October 1998
Abstract
An explicit model for the proton structure function is suggested,
interpolating between low-Q2 vector meson dominance and Regge
behavior, on the one hand, and the high-Q2 solution of the
Gribov-Lipatov-Altarelli-Parisi evolution equation, on the other hand.
The model is fitted to the experimental data in a wide range of the
kinematical variables with emphasis on the low-x HERA data. The
boundaries, transition region and interface between various regimes are
quantified.
Copyright Springer-Verlag
