Skip to content

feat(grcc): allow 2-pt vertex insertions when "NoSigma" #776

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
jodavies wants to merge 1 commit into
base: master
Choose a base branch
from
Draft

feat(grcc): allow 2-pt vertex insertions when "NoSigma" #776

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 23 additions & 2 deletions sources/grcc.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7197,12 +7197,33 @@ Bool EGraph::optQGrafM(Options *opt)
extk = 1;
}
if ( momj == momk) {
// We have a pair of lines with equal momenta. Determine if they have a
// common two-point vertex. We want to keep this type of "insertion" when
// in GRCC_QGRAF_OPT_NOSIGMA mode.
int commonNode = -1;
bool common2PtVtx = False;
if (econn->cedges[j].nodes[0] == econn->cedges[k].nodes[0])
commonNode = econn->cedges[j].nodes[0];
else if (econn->cedges[j].nodes[0] == econn->cedges[k].nodes[1])
commonNode = econn->cedges[j].nodes[0];
else if (econn->cedges[j].nodes[1] == econn->cedges[k].nodes[0])
commonNode = econn->cedges[j].nodes[1];
else if (econn->cedges[j].nodes[1] == econn->cedges[k].nodes[1])
commonNode = econn->cedges[j].nodes[1];
if (commonNode != -1) {
if (nodes[commonNode]->deg == 2) {
common2PtVtx = True;
}
}

if (nExtern == 2) {
if (extj + extk != 2) {
if (extj + extk != 2 && common2PtVtx == False) {
ok = False;
}
} else {
ok = False;
if (common2PtVtx == False) {
ok = False;
}
}
}
}
Expand Down
Loading