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Parton Distributions for Low Q^2

AD Martin·WJ Stirling·RG Roberts
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Abstract

We extend the MRS(A) set of parton distributions, which provides an up-to-date description of the structure of the proton probed by hard interactions, into the region of $Q^2$ below $5\ {\rm GeV}^2$. After physically-motivated modifications, we obtain a smooth description of the data on the structure function $F_2(x,Q^2)$ all the way from $Q^2 = 10^{-1}$ to $10^3\ {\rm GeV}^2$.

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AD Martin, WJ Stirling, RG Roberts. 1994-09-26. Parton Distributions for Low Q^2. https://doi.org/10.1103/physrevd.51.4756

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