  We apply the chiral potential with the momentum space semi-local
regularization to the $^2$H and $^3$He photodisintegration processes and to the
(anti)neutrino induced deuteron breakup reactions. Specifically, the
differential cross section, the photon analyzing power and the final proton
polarization have been calculated for the deuteron photodisintegration at the
photon energies 30 MeV and 100 MeV. For the $^3$He photodisintegration
predictions for the semi-inclusive and exclusive differential cross sections
are presented for the photon energies up to 120 MeV. The total cross section is
calculated for the (anti)neutrino disintegrations of the deuteron for the
(anti)neutrino energies below 200 MeV. The predictions based on the Argonne V18
potential or on the older chiral force with regularization applied in
coordinate space are used for comparison. Using the fifth order chiral
nucleon-nucleon potential supplemented with dominant contributions from the
sixth order allows us to obtain converged predictions for the regarded
reactions and observables. Our results based on the newest semi-local chiral
potentials show even smaller cutoff dependence for the considered electroweak
observables than the previously reported ones with a coordinate-space
regulator. However, some of the studied polarization observables in the
deuteron photodisintegration process reveal more sensitivity to the regulator
value than the unpolarized cross section. The chiral potential regularized
semi-locally in momentum space yields also fast convergence of results with the
chiral order. These features make the used potential a high quality tool to
study electroweak processes.
