phantom
Phantom is used as a utility connection and rendered as nothing.
[1]:
import pyfeyn2
pyfeyn2.__version__
[1]:
'2.2.6.6'
[2]:
from pyfeyn2.render.all import AllRender
ar = AllRender().demo_propagator("phantom")
tikz:

pyx:

feynmp:

feynman:

dot:

asciipdf:

unicodepdf:
