Study of the hadronization process in cold nuclear medium

TL;DR

This paper investigates the hadronization process within cold nuclear matter by fitting an improved two-scale model to SIDIS data from HERMES, achieving good agreement and predicting multiplicity ratios for unmeasured hadrons.

Contribution

The study introduces an improved two-scale model and applies it to experimental SIDIS data, providing a better understanding of hadronization in nuclear environments.

Findings

Model fits SIDIS data with satisfactory $hi^2$

Best-fit parameters predict multiplicity ratios for other hadrons

Supports the two-scale model as effective for nuclear hadronization analysis

Abstract

The improved two-scale model is used to perform the fit to the semi-inclusive deep-inelastic scattering (SIDIS) data of HERMES experiment at DESY on nuclear targets. The ratio of hadron multiplicity on nuclear target to the deuterium one is chosen as observable, as usually. The two-parameter's fit gives satisfactory agreement with the data in term of $\chi^2$ criterium. Best values of parameters are then used to calculate the nuclear multiplicity ratio for the hadrons not included in the fit procedure.