Diagram generator: Towards Qgraf keywords #716
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This patch implements the following QGRAF options:
onepi/onepr
onshell/offshell
nosigma/sigma
nosnail/snail
notadpole/tadpole
simple/notsimple
bipart/nonbipart
cycli/cyclr
floop
The following options are not implemented:
topol
onevi/onevr
onshellx/offshellx
The default options are updated to generate the set of all connected
graphs. Specifying additional options can generate a subset of the
default output.
Example:
#define LOOPS "2"
Vectors Q1,Q2,p1,...,p8;
Set QQ:Q1,Q2;
Set PP:p1,...,p8;
Local F = topologies_(`LOOPS',2,{3,4},QQ,PP);
Print +ss;
.end
This generates 24 terms, corresponding to 24 topologies, due to the
updated default options. When applied to the 3-loop case, the same
example yields 240 terms.
Note: The above example crashes when called with
"`LOOPS',-2,{3,4},QQ,PP". This behaviour was also seen in previous
versions.
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I think the merge has been improved now. |
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This PR merges changes from the current
diagramsbranch, which introduces Qgraf keywords at the grcc level. Merge conflicts were resolved by entirely replacing the diagram generator source files, rather than merging them. It also fixes typos reintroduced as a result of this replacement, removes dead code related toTKMOD, and includes memory bug fixes in a separate commit.