Geometric Scaling of $F_2$ and $F_2^c$ in data and QCD Parametrisations

Details Geometric Scaling of $F_2$ and $F_2^c$ in data and QCD Parametrisations Geometric Scaling of $F_2$ and $F_2^c$ in data and QCD Parametrisations

2008-10-28

arxiv.org/abs/0810.5082v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages

Scientific paper

The scaling properties at low $x$ of the proton DIS cross section and its charm component are analyzed with the help of the quality factor method. Scaling properties are tested both in the deep inelastic scattering data and in the structure functions reconstructed from CTEQ, MRST and GRV parametrisations of parton density functions. The results for DIS cross sections are fully compatible between data and parametrisations. Even with larger error bars, the charm component data favors the same geometric scaling properties as the ones of inclusive DIS. This is not the case for all parametrisations of the charm component.

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