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\pdf_title "Feynman Diagrams"
\pdf_author "LyX Team, Uwe Stohr, Ronen Abravanel"
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\begin_body

\begin_layout Title
ファインマン図
\end_layout

\begin_layout Standard
ファインマン図（
\noun on
Feynman
\noun default
 diagram）を利用するためには、LaTeXパッケージ
\series bold
feyn
\series default
を導入しておく必要があります。ファインマン図は、数式中にコマンド
\series bold

\backslash
Diagram
\series default
を挿入することで作ることができます。すると、新しい行列を通常の行列と同じようにして作ることができます。
\end_layout

\begin_layout Standard
以下に示すように、「分子」や「伝搬関数」として振る舞うコマンドを、行列の項目として入力することができます。
\end_layout

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コマンド
\end_layout

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説明
\end_layout

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例
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出力
\end_layout

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f,g,h
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</cell>
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\noindent
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フェルミ粒子・光子・ ゴースト伝搬関数
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f
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g
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h
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\begin_inset Formula $\Diagram{f & g & h}
$
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\end_layout

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fu,fd,fv (gu,gd,gv)
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\noindent
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上向き・下向き・垂直のフェルミ粒子・光子
\end_layout

\end_inset
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fd
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gu
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fv
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fA,fV
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AおよびVは、左ないし上向きの矢印や、右ないし下向きの矢印を生成する修飾子
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gvV
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fl,glB,glS,fl1,gl2など
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\noindent
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フェルミ粒子ループ・光子ループ
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f
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gl
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\end_layout

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f
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f
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\backslash
momentum{ch}{文字列}
\end_layout

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\begin_inset Text

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\noindent
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分子運動量の指定
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\begin_inset Text

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\begin_inset Formula $\backslash{\rm momentum}\{fA\}\{\vec{p\}}$
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$
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\backslash
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\begin_inset Text

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\noindent
\align left
頂点ラベル（vertex label）。頂点の上にラベルを付けるときは
\emph on
p
\emph default
は^、下に付けるときは_
\end_layout

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<row>
<cell alignment="center" valignment="top" bottomline="true" usebox="none">
\begin_inset Text

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<row>
<cell alignment="center" valignment="top" usebox="none">
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fglS\vertexlabel_{\gamma}
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$
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\begin_layout Standard
これらは、
\series bold
feyn
\series default
パッケージのオプションの一部に過ぎません。ユーザーの手引きは
\begin_inset CommandInset citation
LatexCommand cite
key "Feyn"

\end_inset

にあります。
\end_layout

\begin_layout Bibliography
\begin_inset CommandInset bibitem
LatexCommand bibitem
key "Feyn"

\end_inset

LaTeXパッケージ
\series bold
feyn
\series default
の
\begin_inset CommandInset href
LatexCommand href
name "取扱説明書"
target "http://mirror.ctan.org/fonts/feyn/feyn.pdf"

\end_inset


\end_layout

\end_body
\end_document
