M. Derrick et al., HADRONIC ENERGY-DISTRIBUTIONS IN DEEP-INELASTIC ELECTRON-PROTON SCATTERING, Zeitschrift fur Physik. C, Particles and fields, 59(2), 1993, pp. 231-242
This paper presents energy distributions of the hadronic system produc
ed in neutral-current electron-proton deep-inelastic scattering at a c
entre of mass energy of 296 GeV. Comparison of the results with QCD Mo
nte Carlo models shows that QCD radiation has a strong influence on th
e characteristics of the final state. The data are reasonably reproduc
ed by the Lund model based on a matrix element calculation in first or
der of alpha(s), followed by appropriate parton showers, as well as by
the colour dipole model. The HERWIG parton shower model also gives a
reasonable representation of the data. Neither the first order matrix
elements alone nor the Lund parton shower model, without the matrix el
ement calculation, reproduce the data.