Heavy-quark deep-inelastic scattering with a running mass

Details Heavy-quark deep-inelastic scattering with a running mass Heavy-quark deep-inelastic scattering with a running mass

2010-11-26

arxiv.org/abs/1011.5790v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages Latex, 8 figures

Scientific paper

We study the production of heavy quarks in deep-inelastic scattering within perturbative QCD. As a novelty, we employ for the first time the running mass definition in the MSbar scheme for deep-inelastic charm and bottom production. We observe an improved stability of the perturbative expansion and a reduced theoretical uncertainty due to variations of the renormalization and factorization scales. As our best estimate we extract from a global fit to fixed-target and HERA collider data for the charm-quark an MSbar mass of m_c(m_c) = 1.01 +- 0.09 (exp) +- 0.03 (th) GeV.

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