Open vsht opened 3 years ago
Lee-Pomeransky is already available (purely scalar case only), cf.
FCFeynmanParametrize[{SFAD[{ p1, m^2}], SFAD[{ p3, m^2}],
SFAD[{(p3 - p1), m^2}], SFAD[{{0, 2 p1 . n}}], SFAD[{{0, 2 p3 . n}}]}, {p1, p3},
Names -> x, Method -> "Lee-Pomeransky", FCReplaceD -> {D -> 4 - 2 ep},
FinalSubstitutions -> {SPD[n] -> 1, m -> 1}]
Baikov would require a bit more work though ...
FCFeynmanParametrize currently supports only Feynman parametrization. It would be good to have Schwinger, Lee-Pomeransky and Baikov working as well. At least for pure denominator integrals.