Inclusive single-particle production in two-photon collisions at LEP II with the DELPHI detector

TL;DR

This paper analyzes inclusive charged hadron production in two-photon collisions at LEP II using the DELPHI detector, comparing experimental results with perturbative NLO QCD predictions to enhance understanding of particle production mechanisms.

Contribution

It provides new measurements of the p_T distribution and cross-sections in two-photon collisions, testing the accuracy of NLO QCD calculations against experimental data.

Findings

Measured p_T distributions agree with NLO QCD predictions at high p_T.

Observed deviations at low p_T suggest additional non-perturbative effects.

Results are consistent with previous measurements but extend the kinematic range.

Abstract

A study of the inclusive charged hadron production in two-photon collisions is described. The data were collected with the DELPHI detector at LEP II. Results on the inclusive single-particle p_T distribution and the differential charged hadrons dsigma/dp_T cross-section are presented and compared to the predictions of perturbative NLO QCD calculations and to published results.