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Feynman diagram (2) of the ADD model with graviton and photon
Source code name: "feynman_add2_graviton.py"
Programming language: Python
Topic: Physics/HEP
DMelt Version 1. Last modified: 07/19/2015. License: Free
https://datamelt.org/code/cache/feynman_add2_graviton_8729.py
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copy the above URL link to the menu [File]→[Read script from URL] of the DMelt IDE.
from java.awt import *
from jhplot import *
from jhplot.jadraw import Diagram
# position of the diagram on the canvas
Xpos=0.33
Ypos=0.22
c1=HPlotJa("Canvas",600,400,1,1,0)
# c1.setGTitle("Feynman Diagram objects", Color.blue)
c1.visible()
c1.showEditor(0)
# upper V shape
# start position x=0.05, y=0.1
gl=Diagram.FLine(Xpos,Ypos)
gl.setRelWH(-0.15,-0.2,"NDC")
gl.setStroke(2)
c1.add(gl)
# lower
gl=Diagram.FLine(Xpos,Ypos+0.4)
gl.setRelWH(0.15,-0.2,"NDC")
gl.setStroke(2)
c1.add(gl)
# vertical
gl=Diagram.FLine(Xpos+0.15,Ypos+0.2)
gl.setRelWH(0.0,-0.2,"NDC")
gl.setStroke(2)
c1.add(gl)
gl=Diagram.PLine(Xpos+0.15,Ypos)
gl.setRelWH(-0.15,0.2,"NDC")
gl.setStroke(3)
c1.add(gl)
gl=Diagram.PLine(Xpos+0.15,Ypos+0.4)
gl.setRelWH(0.15,0.2,"NDC")
gl.setStroke(2)
c1.add(gl)
# show Higgs lines
gl=Diagram.Text("q", Xpos-0.1,Ypos+0.65)
c1.add(gl)
gl=Diagram.Text("#bar{q}", Xpos-0.1,Ypos)
c1.add(gl)
# show Higgs lines
gl=Diagram.Text("γ", Xpos+0.36,Ypos+0.65)
c1.add(gl)
gl=Diagram.Text("G", Xpos+0.36,Ypos)
c1.add(gl)
c1.update()
# c1.export("add2_diagram.eps")