Heavy Flavour Physics at HERA

TL;DR

This paper presents new experimental results on heavy flavour production at HERA, including cross sections for D* mesons, charm structure function, gluon density, J/psi production, and the first measurement of b anti-b cross section, comparing them to theoretical models.

Contribution

It provides updated measurements of heavy flavour production at HERA, including the first b anti-b cross section measurement, enhancing understanding of QCD processes.

Findings

Measured D* production cross sections

Determined charm structure function F2^{charm}

First measurement of b anti-b cross section

Abstract

New results with increased statistics are presented for heavy flavour production at Q2<150 Gev2 and in the photoproduction limit Q2-->0. Cross sections for Dstar production, F2charm, the gluon density in the proton, and inelastic J/psi production are discussed and compared to theoretical calculations. A first measurement of the b anti-b cross section is reported.