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Nuclear Uncertainties in the Determination of Proton PDFs
Richard D. Ball, Emanuele R. Nocera, Rosalyn L. Pearson
We show how theoretical uncertainties due to nuclear effects may be incorporated into global fits of proton parton distribution functions (PDFs) that include deep-inelastic scatter…
Precision determination of the strong coupling constant within a global PDF analysis
Richard D. Ball, Stefano Carrazza, Luigi Del Debbio +5
We present a determination of the strong coupling constant based on the NNPDF3.1 determination of parton distributions, which for the first time includes constraints fro…
The Proton Spin, Semi-Inclusive processes, and a future Electron Ion Collider
Richard D. Ball, A. Deshpande
We discuss spin physics, Guido Altarelli's contribution to it, and what we still have to learn. We set out in particular a programme for incorporating constraints from semi-inclusi…