Deep inelastic lepton nucleus scattering and hadronization at HERMES energies
- Universitaet Heidelberg, Institut fuer theoretische Physik, Philsophenweg 19, D-69120 Heidelberg (Germany)
Semi-inclusive deep inelastic lepton nucleus scattering is studied. The possible hadron interactions inside the nucleus are taken into account by an absorption model which is based on flavor dependent hadron formation lengths, calculated in the framework of the LUND string fragmentation model. Additionally, the rescaling of parton distribution functions and fragmentation functions in the nuclear medium is considered, due to the hypothesis, that a quark in a bound nucleon has access to a larger region in space than in a free nucleon. The model predictions are compared with recent HERMES results for the multiplicity ratios normalized to deuterium on various hadron species and different nuclei. Beside the proton, a good agreement with the experimental data is found.
- OSTI ID:
- 20722862
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 775; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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