Add effective mass example#37

Merged

kunyuan merged 7 commits intomasterfrom

May 17, 2025

Commits on Mar 19, 2025

bugfix
houpc
committed
update examples
fancaiyu
committed

Commits on Mar 21, 2025

Merge branch 'master' into pchou
houpc
committed

Commits on Apr 25, 2025

fix conflicts
houpc
committed

Commits on Apr 27, 2025

Commits on Apr 28, 2025

update feynmandiag example
houpc
committed