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arXiv · 1202.4642

PDF fit in the fixed-flavor-number scheme

S. Alekhin·J. Bluemlein·S. Moch
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Abstract

We discuss the heavy-quark contribution to deep inelastic scattering in the scheme with $n_f=3,4,5$ fixed flavors. Based on the recent ABM11 PDF analysis of world data for deep-inelastic scattering and fixed-target data for the Drell-Yan process with the running-mass definition for heavy quarks we show that fixed flavor number scheme is sufficient for describing the deep-inelastic-scattering data in the entire kinematic range. We compare with other PDF sets and comment on the implications for measuring the strong coupling constant $\alpha_s(M_Z)$.

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S. Alekhin, J. Bluemlein, S. Moch. 2012-02-21. PDF fit in the fixed-flavor-number scheme. https://doi.org/10.1016/j.nuclphysbps.2012.03.006

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