  In this work, we present a new set of unpolarized ($ H $) and polarized
($\widetilde{H}$) generalized parton distributions (GPDs) that have been
determined using a simultaneous $ \chi^2 $ analysis of the nucleon axial form
factor (AFF) and wide-angle Compton scattering (WACS) experimental data at the
next-to-leading order (NLO) accuracy in QCD. We explore various Ansatzes
presented in the literature for GPDs, which use forward parton distributions as
input, and choose the ones most suited to our analysis. The experimental data
included in our analysis cover a wide range of the squared transverse momentum,
which is $ 0.025 < -t < 6.46 $ GeV$ ^2 $. We show that the WACS data affect
significantly the large $-t$ behavior of $\widetilde{H}$. The polarized GPDs
obtained from the simultaneous analysis of AFF and WACS data differ
considerably from the corresponding ones obtained by analyzing AFF and WACS
separately, and have less uncertainties. We show that the theoretical
predictions obtained using our GPDs are in good agreement with the analyzed AFF
and WACS data for the entire range of $ -t $ studied. Finally, we obtain the
impact parameter dependent parton distributions, both in an unpolarized and in
a transversely polarized proton, and present them as tomography plots.
