#LyX 2.4 created this file. For more info see https://www.lyx.org/ \lyxformat 620 \begin_document \begin_header \save_transient_properties true \origin /systemlyxdir/examples/Graphics_and_Insets/ \textclass scrartcl \begin_preamble % DO NOT ALTER THIS PREAMBLE!!! % % This preamble is designed to ensure that the file prints % out as advertised. If you mess with this preamble, % parts of this document may not print out as expected. If you % have problems LaTeXing this file, please contact % the documentation team % email: lyx-docs@lists.lyx.org % if pdflatex is used \usepackage{ifpdf} \ifpdf % set fonts for nicer pdf view \IfFileExists{lmodern.sty} {\usepackage{lmodern}}{} \fi % end if pdflatex is used % used to have extra space in table cells \@ifundefined{extrarowheight} {\usepackage{array}}{} \setlength{\extrarowheight}{5pt} % Added by lyx2lyx \setlength{\parskip}{\medskipamount} \setlength{\parindent}{0pt} \end_preamble \use_default_options true \maintain_unincluded_children no \language english \language_package default \inputencoding utf8 \fontencoding auto \font_roman "default" "default" \font_sans "default" "default" \font_typewriter "default" "default" \font_math "auto" "auto" \font_default_family default \use_non_tex_fonts false \font_sc false \font_roman_osf false \font_sans_osf false \font_typewriter_osf false \font_sf_scale 100 100 \font_tt_scale 100 100 \use_microtype false \use_dash_ligatures false \graphics default \default_output_format default \output_sync 0 \bibtex_command default \index_command default \paperfontsize 12 \spacing single \use_hyperref true \pdf_title "Feynman Diagrams" \pdf_author "LyX Team, Uwe Stöhr, Ronen Abravanel" \pdf_bookmarks false \pdf_bookmarksnumbered false \pdf_bookmarksopen false \pdf_bookmarksopenlevel 1 \pdf_breaklinks false \pdf_pdfborder true \pdf_colorlinks false \pdf_backref false \pdf_pdfusetitle false \pdf_quoted_options "linkcolor=black, citecolor=black, urlcolor=blue, filecolor=blue, pdfpagelayout=OneColumn, pdfnewwindow=true, pdfstartview=XYZ, plainpages=false" \papersize default \use_geometry false \use_package amsmath 1 \use_package amssymb 1 \use_package cancel 1 \use_package esint 1 \use_package mathdots 1 \use_package mathtools 1 \use_package mhchem 1 \use_package stackrel 1 \use_package stmaryrd 1 \use_package undertilde 1 \cite_engine basic \cite_engine_type default \biblio_style plain \use_bibtopic false \use_indices false \paperorientation portrait \suppress_date true \justification true \use_refstyle 0 \use_minted 0 \use_lineno 0 \notefontcolor #0000ff \index Index \shortcut idx \color #008000 \end_index \secnumdepth 3 \tocdepth 3 \paragraph_separation indent \paragraph_indentation default \is_math_indent 0 \math_numbering_side default \quotes_style english \dynamic_quotes 0 \papercolumns 1 \papersides 1 \paperpagestyle default \tablestyle default \tracking_changes false \output_changes false \change_bars false \postpone_fragile_content false \html_math_output 0 \html_css_as_file 0 \html_be_strict false \docbook_table_output 0 \docbook_mathml_prefix 1 \end_header \begin_body \begin_layout Title Feynman Diagrams \end_layout \begin_layout Standard \begin_inset Note Note status open \begin_layout Plain Layout authors: Uwe Stöhr and Ronen Abravanel \end_layout \end_inset \end_layout \begin_layout Standard To be able to create \noun on Feynman \noun default diagrams, the \SpecialChar LaTeX -package \series bold feyn \series default must be installed. A \noun on Feynman \noun default diagram is created by inserting the command \series bold \backslash Diagram \series default in a formula. Then you are able to add new matrix columns and rows like a normal matrices. \end_layout \begin_layout Standard As matrix entry, one can enter commands that act as \begin_inset Quotes eld \end_inset particles \begin_inset Quotes erd \end_inset or \begin_inset Quotes eld \end_inset propagators \begin_inset Quotes erd \end_inset , for example: \end_layout \begin_layout Standard \align center \begin_inset Tabular \begin_inset Text \begin_layout Plain Layout Commands \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout Description \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout Example \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout Result \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout f,g,h \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \noindent \align left fermion, photon or ghost propagator \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Tabular \begin_inset Text \begin_layout Plain Layout f \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout g \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout h \end_layout \end_inset \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $\Diagram{f & g & h} $ \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout fu,fd,fv (gu,gd,gv) \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \noindent \align left fermion/photon, going up/down/vertical \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Tabular \begin_inset Text \begin_layout Plain Layout fd \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout gu \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout fv \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \end_layout \end_inset \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $\Diagram{fd & & gu\\ & fv } $ \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout fA,fV \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \noindent \align left A and V are modifiers to produce arrow going left/up or right/down \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Tabular \begin_inset Text \begin_layout Plain Layout fdA \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout fuV \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout gvV \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \end_layout \end_inset \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $\Diagram{fdA & & fuV\\ & gvV } $ \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout fl,glB,glS,fl1,gl2, etc. \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \noindent \align left fermions/photons loop \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Tabular \begin_inset Text \begin_layout Plain Layout f \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout gl \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout f \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout f \end_layout \end_inset \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $\Diagram{f & gl\\ & f & f } $ \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \backslash momentum{ch}{text} \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \noindent \align left particle-momentum specification \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $\backslash\mathrm{momentum}\{fA\}\{\vec{p\}}$ \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $\Diagram{\momentum{fA}{\vec{p}}} $ \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \backslash vertexlabel{p}{text} \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \noindent \align left the vertex label \emph on p \emph default is either '^' or '_' for labeling above or below the vertex \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Tabular \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $\backslash\mathrm{vertexlabel}^{e^{+}}fA$ \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $fglS\backslash\mathrm{vertexlabel}_{\gamma}$ \end_inset \end_layout \end_inset \end_inset \end_layout \end_inset \begin_inset Text \begin_layout Plain Layout \begin_inset Formula $\Diagram{\vertexlabel^{\mathrm{e^{+}}}fA\\ fglS\vertexlabel_{\gamma} } $ \end_inset \end_layout \end_inset \end_inset \end_layout \begin_layout Standard These are just some of the features of thepackage \series bold feyn \series default whose user manual can be found in \begin_inset CommandInset citation LatexCommand cite key "Feyn" literal "true" \end_inset . \end_layout \begin_layout Standard \begin_inset Note Greyedout status open \begin_layout Plain Layout \series bold Note: \series default If you have an index list in your document and use one of the AMS theorem modules, you have to add the option \series bold noglobalbang \series default to the document class options in the document settings. This enables the usage of the '!' character in index entries (necessary for subentries) but might cause troubles with the align environments (which are described in section \begin_inset Quotes eld \end_inset Align Environments \begin_inset Quotes erd \end_inset of \SpecialChar LyX 's Math manual). \end_layout \end_inset \end_layout \begin_layout Bibliography \begin_inset CommandInset bibitem LatexCommand bibitem key "Feyn" literal "true" \end_inset \begin_inset CommandInset href LatexCommand href name "Documentation" target "https://mirrors.ctan.org/fonts/feyn/feyn.pdf" literal "false" \end_inset of the \SpecialChar LaTeX package \series bold feyn \end_layout \end_body \end_document