2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37680The H1 and ZEUS experiments are measuring beauty production in ep collisions at HERA. The b quark mass provides a hard scale which allows a dedicated test of perturbative QCD. The latest results in photoproduction and deep inelastic scattering are presented and compared to the NLO QCD predictions as well as to LO + parton shower Monte Carlo simulations.Proceedings of the XXXIXth Rencontres de Moriond, QCD and high energy hadronic interactions, 2004High Energy Physics - Experimenttext