I present a modification of the Colour Dipole Model for DIS as implemented in
Ariadne to better describe events at high Q^2.Comment: To be published in the proceedings of the HERA Monte Carlo workshop,
  Hamburg, Germany, 1998-199

Lonnblad, Leif

English

arXiv

: I present a modification of the Colour Dipole Model for DIS as implemented in ARIADNE to better describe events at high Q  2  . 1 Introduction  Since the start of the HERA machine, the ARIADNE [1] program has generally been regarded the event generator giving the best overall description of the measured DIS hadronic final states. For most observables it gives a better reproduction of experimental results than more conventional generators such as HERWIG [2] and LEPTO [3] which implements initial- and final-state parton showers based on DGLAP evolution [4]. This has in particular been true in the region of small  x and Q  2  , and it has often been taken as an indication that DGLAP evolution is inappropriate for this region. The fact that ARIADNE has the feature of non-ordering of transverse momenta  in common with the BFKL evolution [5], has also been taken as an indication that the latter is a more correct description of small-x evolution As the experimental statistics increased also..

The Colour-Dipole model and the Ariadne program at high Q^2

Abstract

Similar works

Full text

Available Versions

CiteSeerX