D* production in deep-inelastic Scattering at low Q2

TL;DR

This paper reports on the measurement of D* meson production in deep-inelastic scattering at HERA, analyzing cross sections within specific Q^2 and inelasticity ranges, and comparing results to QCD models.

Contribution

It provides new measurements of D* production cross sections in a previously unexplored kinematic range at low Q^2, with detailed comparison to QCD predictions.

Findings

Measured differential cross sections for D* production.

Observed agreement with QCD predictions within uncertainties.

Provided data to constrain QCD models at low Q^2.

Abstract

Inclusive production of D* mesons in deep-inelastic scattering at HERA is studied in the range 5 < Q^2 < 100 GeV2 of the photon virtuality and 0.02 < y < 0.70 of the inelasticity of the scattering process. The visible range for the D* meson is p_T (D*) > 1.25 GeV and |\eta(D*)| < 1.8. The data were taken with the H1 detector in the years 2004 to 2007 and correspond to an integrated luminosity of 347 pb^{-1}. Single and double differential cross sections are measured. The results are compared to QCD predictions.