Questions tagged [feynmf]

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

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1answer
27 views

Vertical alignment of feynmp-graphs in equations

I find myself often in the situation where I have to arrange graphs generated with feynmp in equations. This works usually fine, but I have to play around with the space, i.e. I need to add some at ...
2
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1answer
38 views

Kaon decay diagram alignment feynmf

I was trying to typset the following penguin diagram with Feynmf and I've got it pretty close with the following code \begin{fmffile}{Kaone} \begin{equation} \begin{fmfgraph*}(175,...
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2answers
47 views

External vertex label placement in feynmp

I want to draw a simple e+e- -> 2 gamma feynman diagram using feynmp and I want the external vertex labels to be very close to the edges of the lines because I'm low on space. I know that: ...
0
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1answer
61 views

Create bremsstrahlung feynman diagram with feyngraph

I'm using Latexit to create feynman diagrams and I'd like to create a bremsstrahlung diagram similar to this one but I don't know how to go about getting the nucleus to be vertically below one vertex,...
0
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1answer
22 views

Illustrating Forest Formula on Feynmp

I'm trying to illustrate the Forest Formula for proving renormalizability as a final project for a course I'm taking. I need to find a way to put a rectangle with a dotted line (I can make do with it ...
0
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1answer
26 views

Equation graph using feyn package

Starting from this question with the picture Is it possible with this MWE to create the connectivity graph into the math equation using feyn package? \documentclass[a4paper,12pt]{article} \...
2
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1answer
95 views

latexmk being slow to compile due to an incident with feynmf

I once tried to use the feynmf package in a .tex file. It didn't work, so I never tried it again. But since then, every .tex document I compile using latexmk takes about 10 times longer to finish. My ...
2
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1answer
20 views

How to add space at vertex in `feynmp`

Is there a way to reproduce the following Feynman-diagrams using the 'feynmp' package? The following code \documentclass{article} \usepackage{geometry} \usepackage[utf8]{inputenc} \usepackage{...
1
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0answers
27 views

How to define a custom decoration shape in FeynMF?

FeynMF comes with pre-defined decoration shapes (circle, square, triangle, etc.) used for vertices. However I need decoration shapes that are semicircles (oriented to look like a D and mirror image of ...
2
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1answer
61 views

Change angles, lengths and widths in feynmf

I'm trying to draw the following diagram in feynmf: I want to do it in feynmf because it's easy to do in LaTeXiT which means that it automatically comes out with a transparent background, and because ...
0
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4answers
181 views

Drawing feynman diagram with Feynmf

I'm trying to create the diagram below using the feynmf package, but I'm extremely inexpert and I don't know where to start to create the two protons that enter the blob. Im happy for the two blue ...
1
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3answers
79 views

Equal length to vertices in feynmf

I want to draw the following feynman diagram using feynmf: I'm happy for the solid blue line to be replaced by a dashed line, but I can't for the life of me work out how to get everything looking ...
1
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3answers
161 views

Use Feynmp to create feynman diagram in LaTeXiT

I want to create a Feynman diagram using LaTeXiT. I have followed the instructions here http://osksn2.hep.sci.osaka-u.ac.jp/~taku/osx/feynmp.html to install feynmp and the instructions here http://...
0
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2answers
89 views

Photon without arrows using feynmp-auto

I have this MWE created with feynmp-auto, \documentclass[a4paper,12pt]{article} \usepackage{mathtools,amssymb} \usepackage{feynmp-auto} \begin{document} \begin{fmffile}{draw} \begin{fmfgraph*}(100,...
0
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1answer
47 views

why doesn't a dot appear in the second code for Feynman diagram produced by feynmf?

I tried this code : \begin{fmffile}{feyngraph} \begin{fmfgraph}(40,25) \fmfleft{a1} \fmfright{y1} \fmf{photon}{a1,j1,y1} \end{fmfgraph} \end{fmffile} ~ \begin{fmffile}{feyngraph} \...
0
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0answers
47 views

How to draw Feynman diagrams with vertex dotted as in the picture

I would like to draw Feynman diagrams using Feynmf. However, I cannot find a way to have a dot in the middle of wavy lines just like the picture below. Moreover, I cannot find a way to draw a circle ...
2
votes
2answers
72 views

Fixing arrows details on Feynman diagram

I'm trying to make a (simple?) Feynman diagram, but there are some details that are bugging me. In particular, the labels of the lines and the labels of the arrows are of different sizes, and the p'/k'...
0
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2answers
156 views

Photon selfenergy diagram in LaTeX

I am typing my project using LaTeX, I need to insert a photon self-energy diagram with symmetric moments in centre alignment This is what I need: Please help me...
3
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2answers
255 views

How to increase the size of a boson in tikz-feynman package?

I am using the tikz-feynman package to make some Feynman diagrams like this: \documentclass{article} % Beta decay \usepackage{tikz} \usepackage[compat=1.1.0]{tikz-feynman} \usepackage{feynmf} \begin{...
0
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1answer
130 views

Position label above vertex feynmp 4 fermion interaction

I am trying to produce a Feynman diagram that is simply 2 incoming fermions meet at a vertex v1, with 2 outgoing fermions. I wish to put a label on the vertex, above the vertex. However feynmp by ...
2
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2answers
941 views

Packages for drawing diagrams of Feynman: advantages and disadvantages

My question simply derives from this question: Bremsstrahlung process in \feynmandiagram environment I have seen into the site TeX.SE. there are many question on the packages to draw a Feymann ...
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0answers
27 views

Is there any way to delete previously defined vertices in feynmf?

I'm trying to create feynman diagrams programmatically, and frequently require the need to remove individual vertices that were previously created with the fmfn or fmfcyclen commands. This is so that ...
2
votes
1answer
33 views

Problem using variables with feynmp fmffor

This is a follow-up to this question. The solution provided by egreg worked, but the same solution doesn't work when trying to update a variable within an fmffor loop. A complete example is shown ...
2
votes
1answer
29 views

Problem using variables with feynmp

I've tried the def command or pgfmathsetmacro, and the feynman diagrams are drawn as though the variable is always set to "1" regardless. The only workaround I've found is to put my feynman diagram ...
1
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1answer
84 views

Feynmf - two loop correction to 4 point function

How can I draw the two loop correction to the four point function, with one of the loops on the right propagator? I tried \begin{fmffile}{loop} \begin{fmfgraph}(40,40) \fmfleft{i1,i2} ...
2
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2answers
399 views

Resonance production in FeynMF

How could I make the picture: using FeynMF?
2
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1answer
131 views

how do I put a dot in a \fmf line using feynmp?

I would like to add a dot to the top of the circle, but \fmfdot only works on vertices. Is there a way to do this? Here is the code that I am using: \documentclass{article} \usepackage{feynmp} \...
2
votes
1answer
525 views

feynmf: colour flow lines

I would like to add colour flow lines to Feynman diagrams as in this example: Is there a convenient way to have such a functionality? The code is the following: \documentclass[class=minimal,border=...
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1answer
396 views

Drawing a triangle vertex in a bubble diagram with feynmf package

I would like to draw some Feynman diagrams using the feynmf package which contain a complex (triangular) vertex. Here is my attempt, which apparently reproduces the diagram which I want to achieve, ...
0
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2answers
478 views

Anomalous Green's function

Is it possible to draw a line (or double line) with two out-out or into-into arrows in feynmf? Such (anomalous) diagrams appear, e.g. in perturbation theory of Bose condensates. Following http://...
2
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2answers
214 views

feynmf: keeping diagram width constant

The code \documentclass[class=minimal,border=20pt]{standalone} \usepackage[utf8]{inputenc} \usepackage{feynmf} \begin{document} \begin{fmffile}{diagram} \begin{fmfgraph*}(250, 250) \fmfleft{i1,i2,...
1
vote
1answer
322 views

Double wiggly line with arrow using feynmf

Please, could you help me to draw a double wiggly line with an arrow? I can drow a single woggly line with arrow using this code \begin{fmffile}{vertex} \fmfcmd{% style_def wiggly_arrow expr p =...
1
vote
1answer
318 views

How to use feynmf (feynmp)? [duplicate]

I would like to draw a tadpole diagram with a cross in a circle as the picture in the parenthesis but the double line is not necessary. I write the codes as below: \begin{fmffile}{tadpole} \begin{...
1
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2answers
1k views

Can't draw the loop by using feynmf-auto package

I've tried to draw the vacuum polarization diagram by using feynmf-auto package. Here is the code which I've used: \begin{fmffile}{45} \begin{fmfgraph}(200,200) ...
4
votes
1answer
2k views

Repositing labels in Feynman diagram

I have the following code in Feynmf: \documentclass{article} \usepackage{feynmp} \usepackage{ifpdf} \ifpdf \DeclareGraphicsRule{*}{mps}{*}{} \fi \usepackage{empheq} \begin{document} \unitlength =...
6
votes
2answers
455 views

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. ...
0
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1answer
730 views

Installing feynmp / feynmf to TexMaker

What packages do I need to download and what I need to have in my preamble in order to use feynmp and feynmf in texmaker?
3
votes
1answer
1k views

How can a label be positioned in feynmp?

I have a Feynman diagram like this: Let's say I want the label for the W+ to be on the opposite side of its squiggly line or the label for the lowermost tbar to be on the opposite side of its ...
1
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2answers
813 views

How to denote the labels in loop-diagram using package feynmp?

To draw a loop diagram, such as the self-energy of photon, like the below example: I tried those codes \begin{fmffile}{loop} % Loop correction \begin{fmfgraph*}(80,65) \fmfkeep{loop} \fmfleft{...
3
votes
3answers
1k views

Positioning a vertex directly above another vertex in feynMF

I have been trying to replicate this Feynman diagram with feynMF. (Image from [1]). The first part, the double line, is rather easy, as it is already present in feynMF as the heavy style. For the ...
2
votes
1answer
1k views

Adjusting the position of labels when drawing a diagram using feynmf

When drawing a Feynman diagram using feynmf, I'm having a hard time to place the labels in such a way that they do not overlap with each other and/or touch lines. Here is one attempt: \begin{...
1
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1answer
303 views

Labeling multiple incoming/outcoming groups of lines in feynmp?

I'm trying to label multiple groups of incoming and outgoing lines using feynmp. I already managed to put brackets around the lines, but they aren't properly aligned. Is there a way to place the ...
6
votes
2answers
877 views

SUSY particles Feynman diagrams

I am new to LaTeX, and have been trying to find a way to draw Feynman diagrams involving SUSY particles, i.e gauginos and superpartner scalars. I am wondering if there is any way to use the feynmf ...
2
votes
0answers
597 views

Labels in feynman diagrams using feynmf

I'm getting familiar with drawing feynman diagrams using feynmf package and I was trying to draw this process. However, labels do not display in the diagrams. Is there any error? Please, let me know ...
0
votes
1answer
101 views

LaTeXTools custom builder for feynmf/feynmp

I'm using LaTeXTools with ST2, and I need to draw some Feynman diagrams. feynmf/feynmp both require additional commands to compile. Does anyone know the correct syntax for a custom builder that will ...
1
vote
1answer
358 views

Feynman Diagram (feynmp-auto) : 4-Quark Operator

I modified a sample from this source : http://osksn2.hep.sci.osaka-u.ac.jp/~taku/osx/fmfsamples.pdf (Look for 5.3 Cross diagram) and my aim is to label every of the "four" fermion propagators with ...
1
vote
1answer
1k views

Feynmp graphs as standalone pdfs

The way I normally handle Feynman diagrams is just to include \usepackage{feynmf-auto} and to write the whole fmffile code int he main tex file. However, I saw that some people manage to create a ...
4
votes
1answer
427 views

Why doesn't metapost know about the path in my feynmp code?

I'm trying to use FeynMP to draw a Feynman diagram exactly like this but with a photon line inside the circle. This code works perfectly to create the diagram above: \fmfleft{i} \fmfright{o} \...
2
votes
1answer
654 views

Vertical Bubble (Loop) Diagrams with FeynMF

I want to produce the following Feynman diagram with FeynMF; the problems is how to render the loops (particle-hole bubble) in the vertical direction; furthermore, how to fill a vertical bubble with ...
3
votes
1answer
553 views

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 ...