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TeX - LaTeX Stack Exchange

Questions tagged [feynmf]

{feynmf} is about the feynmf or feynmp packages for Feynman diagrams.

The feynmf/feynmp packages provide a way to draw Feynman diagrams in LaTeX. The feynmf package generates the diagrams using Knuth's metafont program mf while the feynmp packges uses the metapost program mpost. Use the {feynmf} tag for questions about either of these packages.

133 questions
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votes
2 answers

Feynmp: Circle with three vertices

I want to use feynmp to draw the one-loop correction to the vertex in phi^3 theory. This is just a circle with three evenly-spaced incoming lines. The thing is I want the figure to be dashed, so using pre-defined polygons won't work. The best I…
Alex
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8
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1 answer

How to draw oval with FeynMP?

Is it possible to draw oval shape with FeynMP? Here is a mwe for a blob [which is a a…
Laura
  • 287
7
votes
3 answers

How to draw an ellipse with FeynMF?

How to draw an ellipse with controllable parameters? The formula for ellipse is (x^2)/(a^2) + (y^2)/(b^2) = 1. Parameters a and b are called semi-major and semi-minor axis, respectively. In other words, 2a is the width whereas 2b is the height of…
Laura
  • 287
6
votes
1 answer

Missing labels with feynmf/feynmp?

I am using feynmp to generate Feynman diagrams with pdflatex. Everything seems to be working but my labels are not showing up. What is wrong? \documentclass{minimal} \usepackage{feynmp} % Needed to interpret generated *.1, *.2 etc. as ps…
mforbes
  • 5,571
6
votes
2 answers

Issues with feynman diagram vertex

I'm unable to put more then one label on a vertex in a Feynman diagram. I've tried to use the command \fmfv twice or with more then one argument, but sadly I'm not getting the result I wished for. Does anyone have a suggestion to offer…
Richard
  • 61
5
votes
1 answer

Feynman Diagrams with feynMF and feynMP

Im triying to learn how to draw Feynman diagrams by using feynMF which I installed from this link and compiled. however even in this simple example which I took from manual it gave me ! I detected a fmfgraph environment outside of fmffile. ! I…
jackaraz
  • 327
4
votes
1 answer

Missing labels with feynmp

my question is exactly the same as Missing labels with feynmf/feynmp? but the answer there did not solve my problem. I am using WinEdt 7, installed Metapost, and copy and pasted that user's code into my WinEdt. I then PDFTexify Opened up fgraphs.mp…
Tim N
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1 answer

How to create a double line fermion style in feynmf?

I'm trying to define a new line style in feynmf which should represent gluons in colour flow notation. Each line should consist of two parallel fermion lines, each of which has an arrow. The arrows should point in opposite directions. It should look…
Photon
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3
votes
1 answer

How can i draw a u-channel scattering with a loop in feynmf?

I am currently doing some work on the renormalization of the scalar phi^4 theory and i need to draw a feynman diagram of a first order loop correction. I have tried to follow the example on the manual but i keep getting my exiting lines crossing…
Christhepanicker
  • 31
3
votes
1 answer

Gluon loop diagrams

I am trying to draw a gluon loop with two-three and four external gluon legs attached to the gluon loop, but as you may see from the attached file these diagrams are not nice enough, could anybody help me to draw them in a nice and symmetric way…
Hawi
  • 51
3
votes
1 answer

Creating a Feynman loop diagram with feynmf

I try to draw this Feynman diagram with feynmf in LaTeX: Here is my code: \begin{fmffile}{edm_neutrino} …
matthias
  • 31
3
votes
1 answer

Drawing Feynman Diagrams with feynMP

I'm trying to draw the higgs decay to two gluon diagram but I want gluons to go straight right and take top quark label in the middle of the loop on the line. my script is as…
jackaraz
  • 327
3
votes
1 answer

Feynmf -- Two loop correction

How to draw a two (or even more) loop diagrams using Feynmf? I tried \documentclass{article} \usepackage{feynmp} \begin{document} \unitlength =…
Machine
  • 155
3
votes
1 answer

feynmp - ! Missing $ inserted

I'm trying to execute the code: \documentclass{article} \usepackage{feynmp} \begin{document} \unitlength = 1mm % determine the unit for the size of…
category
  • 155
2
votes
1 answer

'foreground' command for coloring is not working in feynMF

I am trying to draw a Feynman diagram using the feynMF package where I wanted to put a specific color to a line and a blob. But even if I use the foreground command in \fmf and \fmfv environments, the color is not coming (it's the default black…
Saumyen Kundu
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