The links below give access to FORTRAN codes (grids) containing our latest (JR14) NNLO/NLO dynamical (08) or standard (20) parton distribution functions of the proton in the fixed-flavor-number scheme (FF), as well as in the variable-flavor-number-scheme (VF). In addition, results for the DIS structure functions (SF) of the proton and the neutron are provided for our dynamical NLO fits (for F2 and FL, proton/neutron, including higher-twist contributions).

JR14NNLO08VF.tar.gz, JR14NNLO20VF.tar.gz

JR14NNLO08FF.tar.gz, JR14NNLO20FF.tar.gz

JR14NLO08VF.tar.gz, JR14NLO08FF.tar.gz, JR14NLO08SF.tar.gz

More specific information is available in the source of each code and in the original publication (P. Jimenez-Delgado, E. Reya, Phys. Rev. D89 (2014) 074049; arXiv:1403.1852 [hep-ph]).Our previous (G)JR PDF sets are available below.

JR09VFNNLO.tar.gz contains the NNLO-MSbar (including uncertainties) dynamical parton distribution functions of the nucleon generated in the VFNS (Variable Flavor Number Scheme) as presented in Phys. Rev. D80 (2009) 114011 (arXiv:0909.1711).

JR09FFNNLO.tar.gz contains the NNLO-MSbar (including uncertainties) dynamical parton distribution functions of the nucleon generated in the FFNS (Fixed Flavor Number Scheme) as presented in Phys. Rev. D79 (2009) 074023 (arXiv:0810.4274). Note that the scale dependence of the running coupling constant is governed by a variable number of active flavors as discussed in Mod. Phys. Lett. A22 (2007) 351 (hep-ph/0608276).

GJR08VFNS.tar.gz contains the LO and NLO-MSbar (including uncertainties) dynamical parton distribution functions of the nucleon generated in the VFNS (Variable Flavor Number Scheme) as presented in Phys. Lett. B664 (2008) 133 (arXiv:0801.3618).

GJR08FFNS.tar.gz contains the LO, NLO-MSbar (including uncertainties and the light- as well as the fixed-order heavy-quark-contributions to F2p) and NLO-DIS dynamical parton distribution functions of the nucleon generated in the FFNS (Fixed Flavor Number Scheme) as presented in Eur. Phys. J. C53 (2008) 355 (arXiv:0709.0614). Note that the scale dependence of the running coupling constant is governed by a variable number of active flavors as discussed in Mod. Phys. Lett. A22 (2007) 351 (hep-ph/0608276).

All these PDF sets as well as the older GRV parton distributions are also available as part of the LHAPDF library or at HEPDATA.