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Questions tagged [feynman]

{feynman} is for questions relating to Feynman diagrams, which are pictorial visualizations of certain physical processes involving subatomic particles. Use the {tikz-feynman} tag if your question is related to the TikZ-Feynman package.

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17 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
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1answer
24 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
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1answer
20 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 ...
4
votes
1answer
27 views

Feynman diagram: sides switched

In my t-channel Feynman diagram (with tikz-Feynman), the lower two particles of the t-channel are switched. It appears that for s-channel, the right hand side particles are switched too. Code for t-...
12
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1answer
282 views

Inline Feynman diagrams, Feynman diagrams in equations, very small Feynman diagrams

I'd like to typeset equations like: I have tried this with the tikz-feynman library, but the diagrams generated by it are just way too large, even with the small option (and also just look awkward). ...
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0answers
63 views

Very common question: Feynman Diagrams in LaTeX

I know about a lot of solutions how to draw Feynman diagrams in LaTeX. Unfortunately, noone of them is perfect. I know about TikZ-Feynman and it is the best variant (may be) but I do not understand ...
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1answer
49 views

Specific feynman diagram [closed]

I am very new to TeX and wanted to draw these diagram using Tikz-Feynman or some package.
2
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1answer
98 views

Proper circle by merging four fermionic propagators in a Feynman diagram

I want to make the loop in the following feynman diagram look like a proper circle \documentclass{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \usepackage[compat=1.1.0]{tikz-feynman} %...
6
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1answer
164 views

Feynman diagram with spectator quarks (TikZ-Feynman)

I'm trying to draw the Feynman diagram for the following disintegration: Showing all the quarks, including the two that don't participate, in the same way as this image: So far I've managed to get ...
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1answer
104 views

How can I do this Feyman diagram with tikzfeyman in latex?

So I was wondering if anyone could provide input as how i can do this diagram in latex with tikzfeymann package. Thanks! this is pretty much what I got \feynmandiagram [large, layered layout, ...
2
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3answers
214 views

Resonance production in FeynMF

How could I make the picture: using FeynMF?
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0answers
205 views

Jaxodraw LaTex export is not generating any figure after compilation

I am using jaxodraw for drawing Feynman diagrams. My problem is that once I run pdflatex in a file with the code exported by jaxodraw, I only got the labels and no diagram. I saw a similar problem ...
5
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1answer
189 views

Hartree diagram with tikz-feynman (just a circle as propagator)

I would like to draw the Hartree diagram like that: (actually only the right hand side, but that doesn't matter) My attempts end up like this: \documentclass[tikz]{standalone} \usepackage[compat=1....
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1answer
43 views

Trying to get the right arrow head on my Feyman diagram

So this is the code that genreates the image below. I am trying to get the pointed arrows on the fermions but I have no idea why is not working wit particle. Any help will be appreciated. \...
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1answer
158 views

Trying to put Feyman Diagram side by side horizontally w/ “+” in between.

So i've been trying several threads in this forum on how to make my feynman diagrams look side by side. The problem is that no thing seems to work, this is how my two diagram look: and this is my ...
2
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1answer
72 views

Need help with making a Feyman Diagrams with \feynmandiagram to make triple or more arrows very close to eachother

so I've been trying to make the following feyman diagrams: My code looks like this for the first diagram attempt , so far this is what've got: \begin{figure}[H] \centering \feynmandiagram [...
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3answers
213 views

Feynman Diagram Drawing

So I'm using Jaxodraw to make Feynman Diagrams. The code I exported from Jaxodraw is the following: \documentclass[a4paper]{article} \usepackage{axodraw4j} \usepackage{pstricks} \usepackage{color} \...
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1answer
138 views

Tikz-Feynman: Putting multiple boson loops into each other

I was trying to draw a Feynman diagram of a quark propagator in rainbow ladder truncation when I encountered a problem. I need to draw multiple gluon loops within each other. Drawing one gluon loop is ...
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1answer
259 views

TikZ-feynman: Changing the angle at a vertex

I want to draw a feynman diagram for the quark Dyson-Schwinger equation using the Tikz-Feynman package. I have the problem that I can't draw a fermion line that is straight even after a vertex. I have ...
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1answer
85 views

Tikz Feynman Delbruck Scattering

I'd like to make a Delbruck scattering diagram with Tikz-feynman but for some reason my code wont compile, its blowing up my CPU and eventually memory. Have I written something wrong, is there a ...
3
votes
1answer
390 views

TikZ-Feynman: Orientating diagram horizontally [duplicate]

I want to make a Feynman diagram using the Tikz-Feynman package, that is aligned horizontally. The command I use looks like: \documentclass{book} \usepackage{tikz-feynman} \usepackage{tikz} \...
1
vote
1answer
111 views

Tikz Feynman fit a line inside a loop

I am trying to write a two loop Feynman diagram in a particular format (using pdflatex!), basically with a line dividing in half a loop. Unfortunately while the outcome in the image below is almost ...
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2answers
128 views

Positron - Photon feynman diagram

I made a simple Feynman diagram of the channel S=(k1 + k2)^2 in the Positron - Photon scattering as follows \feynmandiagram[horizontal=a to b]{ i1 [particle=\(\gamma\)] -- [photon, ...
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2answers
713 views

feynman diagram with two loops and bigger dots tikz feynman

I am trying to draw Feynman diagrams with two loops. I have managed to draw the following one: \documentclass[DIV=14,headsepline]{scrartcl} \usepackage[T1]{fontenc} \usepackage[utf8]{luainputenc} \...
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1answer
298 views

Double-Sided Feynman Diagrams

Is there a package for the easy creation of double-sided Feynman diagrams as typically used in nonlinear optics to understand the perturbation orders? See figure 2 of this article for example. Since ...
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1answer
546 views

Proper circle propagator loop using tikz-feynman package

Since I wasn't able to comment the answer to this question: Propagator loop in Feynman diagram using tikz-feynman package I need to ask separately. I was looking for the same thing except that I ...
1
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1answer
215 views

Tikz Feynman error in irreducible diagrams

I am trying to create some feynman diagrams with tikz. My problem is, that I want to create some simple diagrams like vacuum diagrams in φ^4 theory, which are reducible though, so I don't know where ...
3
votes
1answer
312 views

METAPOST: Feynman diagram cropped with XeLaTeX

The following code gives correct results with PDFLaTex but if I run XeLaTeX (which I need to do for the full document), part of the gluon line is cut off. \documentclass{article} \usepackage{feynmp-...
3
votes
2answers
2k views

Loops & insertions in Tikz-Feynman

I'd like to produce these diagrams using Tikz-Feynman. What I have so far is \RequirePackage{luatex85} \documentclass{standalone} \usepackage[compat=1.1.0]{tikz-feynman} \begin{document} $\...
3
votes
1answer
79 views

Getting vertex coordinates from \feynmandiagram

It is handy to have the automated vertex placement at \feynmandiagram from the tikz-feynman package. Is it possible to retrieve vertex coordinates from the \feynmandiagram block? In the following ...
4
votes
1answer
184 views

tikz-feynman: asymmetry between particle and antiparticle lines

The following code: \RequirePackage{luatex85} \documentclass{article} \thispagestyle{empty} \usepackage{tikz} \usepackage[compat=1.1.0]{tikz-feynman} \begin{document} \begin{tikzpicture} \begin{...
2
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1answer
355 views

vertex arithmetic with tikz-feynman

In this MWE (minimal working example) \RequirePackage{luatex85} \documentclass{article} \thispagestyle{empty} \usepackage{tikz} \usepackage[compat=1.1.0]{tikz-feynman} \begin{document} \begin{...
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1answer
193 views

Why doesn't my code draw the Feynman diagram?

\documentclass{report} \usepackage[english,russian]{babel} \usepackage[utf8]{inputenc} \begin{document} \usepackage{tikz} \begin{tikzpicture} \feynmandiagram [horizontal=a to b] { i1 -- [fermion]...
2
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1answer
290 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=...
2
votes
1answer
944 views

Propagator loop in Feynman diagram using tikz-feynman package

Consider the following code written using the tikz-feynman package: \RequirePackage{luatex85} \documentclass{standalone} \usepackage[compat=1.0.0]{tikz-feynman} \begin{document} \feynmandiagram [...
5
votes
1answer
388 views

An equivalent to \fmffreeze in TikZ-Feynman?

I am attempting to draw the following diagram using TikZ-Feynman (CTAN) But I am having difficulty keeping the fermion legs straight after attaching the photons. Using feynmp there is a workaround ...
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1answer
195 views

Labelling figures in the tikz package

Consider the following piece of code, which uses the tikz-feynman package: \usepackage{tikz-feynman, contour} \tikzfeynmanset{compat=1.1.0} \begin{document} \begin{center} \begin{tikzpicture}[...
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0answers
34 views

Labelling feynman diagrams in tikz-feynman package [duplicate]

Consider the following piece of code using the tikz-feynman package. \begin{center} \begin{tikzpicture}[baseline={(current bounding box.center)}] \begin{feynman} \diagram [vertical'=a ...
3
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1answer
639 views

Orientation of lines in feynman diagrams using tikz-package

Consider the following piece of code which uses the tikz-feynman package: \feynmandiagram [baseline={(current bounding box.center)},medium, vertical=b to f] { a [nudge=(-30:5mm)] -- [...
3
votes
1answer
350 views

tikz-feynman package - making a diagram symmetrical

I have the following code which draws a Feynman diagram using the tikz-feynman package. \feynmandiagram [baseline={(current bounding box.center)},medium, vertical=b to f] { a [nudge=(-30:5mm)]...
4
votes
1answer
713 views

tikz-feynman; size of lines and alignment of text

Consider the following piece of code \begin{equation*} \feynmandiagram [medium, vertical=e to f] { a -- [photon] b [particle={\(\nu\)}] -- [fermion, edge label=\(k_{2}\)] c [particle={\(\...
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1answer
709 views

tikz-feynman package - horizontal alignment of graphs

I would like to draw three of the following Feynman diagram side by side: Here is the code to generate the above the Feynman diagram: \begin{center} \begin{tikzpicture} \begin{feynman} \...
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1answer
267 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://...
4
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1answer
885 views

Feynman diagrams in tikz-feynman: labelling of an edge

I am using the tikz-feynman package to draw feynman diagrams. Consider the following diagram which I drew using the following piece of code: \begin{center} \begin{tikzpicture} \begin{...
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0answers
70 views

Disfigured Feynman Diagrams! [duplicate]

I'm trying to draw some Feynman diagrams with LaTeX. So I'm using the TikZ-Feynman package. But my code below: \documentclass[tikz]{standalone} \usepackage{tikz-feynman} \begin{document} \...
4
votes
1answer
526 views

TikZ-Feynman: layers and alignment

I'm trying to draw a gg->ttZ Feynman diagram using the TikZ-Fenyman package, and so far here's what I have: \documentclass[12pt]{article} \usepackage{tikz} \usepackage[compat=1.1.0]{tikz-feynman} \...
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votes
1answer
845 views

Feynman Diagrams: Ugly u-channel

I am drawing a Feynman diagram using TikZ-Feynman as follows: \documentclass[border=1ex, tikz]{standalone} \usepackage[compat=1.1.0]{tikz-feynman} \begin{document} \begin{tikzpicture} \begin{...
3
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2answers
271 views

feynmp-auto line length and angle

I made this Feynman diagram of W' production showing the incoming and outgoing partons: \begin{fmffile}{feynmanW_partons} \begin{fmfgraph*}(150,100) % External vertices on the left \fmfleft{...
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vote
1answer
175 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 =...
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2answers
335 views

Self-energy diagram using feynmp

Please, could you help me to draw such a diagram? The straightforward code I use is just this: \begin{fmffile}{diagr_6th_ord} \begin{fmfgraph}(200,125) \fmfleft{i} \fmfright{o} \fmf{photon}{i,v1} \...