Update of the global fit of PDFs including the low-Q DIS data

Understand

We perform the next-to-next-leading-order (NNLO) QCD global fit of PDFs using inclusive charged-lepton and neutrino DIS data down to Q = 1 GeV.

• We also consider the data on neutrino-nucleon dimuon production, that allows us to disentangle the strange sea distribution.
• The fit results in \chi^2/NDP = 5150/4338 = 1.2 that demonstrates a good consistency of the data sets used in analysis.
• The resulting value of \alpha_s(M_Z) = 0.1136+- 0.0007(exp.) is in a good agreement with the previous version of the fit with a more stringent cut on Q.