FCLoopFindSectors[{GLI[...], ...}]
analyzes the indices of the GLI integrals in the given list and identifies sectors to which they belong. Notice that only GLI
s with integer indices are supported.
If the option GatherBy
is set to True
(default), the output will be a list of two lists, where the former contains the original integrals sorted w.r.t the identified sectors, while the latter is a list of all available sectors.
For GatherBy->False
, the output is a list containing all identified sectors without the original integrals.
Setting the option Last
to True
will return only the top sector.
= {
ints [topo1, {1, 1, 1, 1}],
GLI[topo1, {2, 1, 2, 1}],
GLI[topo2, {1, 0, 1, 1}],
GLI[topo3, {1, 0, 1, -1}]
GLI};
[ints] FCLoopFindSectors
[ints, Last -> True] FCLoopFindSectors
[ints, GatherBy -> False] FCLoopFindSectors
[ints, GatherBy -> False, Last -> True] FCLoopFindSectors