3d-physics-jet-cones+3d+physics.tex

% https://wiki.physik.uzh.ch/cms/latex:tikz:jet_cones
\documentclass{standalone}

\usepackage{amsmath} % for \dfrac
\usepackage{tikz}
\usepackage{tikz-3dplot}

\tikzset{>=latex} % for LaTeX arrow head
\usetikzlibrary{decorations.pathmorphing} % for snake

% colors
\definecolor{mylightred}{RGB}{255,200,200}
\definecolor{myblue}{RGB}{172,188,63}
\definecolor{mylightgreen}{RGB}{150,220,150}

% split figures into pages
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{tikzpicture}
\setlength\PreviewBorder{1pt}%

% draw two cones
\begin{document}

% BOOSTED TAU
\begin{tikzpicture}
	% AK8 variables
	\def\x{2.4}
	\def\y{3.5}
	\def\R{\x+0.02}
	\def\yc{\y+0.08}
	\def\e{0.6}
	
	% AK8 cone
	\shade[right color=white,left color=blue,opacity=0.2]
	(-\x,\y) -- (-\x,\yc) arc (180:360:{\R} and \e) -- (\x,\y) -- (0,0) -- cycle;
	%\shade[right color=white,left color=blue,opacity=0.2]
	%(0,\yc) circle ({\R} and \e);
	%(-\x,\yc) -- ( \x,\yc) arc ( -2:182:{\R} and \e) -- (\x,\yc) -- (0,0) -- cycle;
	\draw[fill=blue,opacity=0.2]
	(0,\yc) circle ({\R} and \e);
	\draw
	(-\x,\y) -- (0,0) -- (\x,\y);
	\draw
	(0,\yc) circle ({\R} and \e);
	
	% AK4 variables
	\def\x{1.0}
	\def\y{4.0}
	\def\R{\x+0.005}
	\def\yc{\y+0.04}
	\def\e{0.4}
	
	% AK4 cone 1
	\begin{scope}[rotate=12]
		\shade[right color=white,left color=green,opacity=0.3]
		(-\x,\yc) -- (-\x,\yc) arc (180:360:{\R} and \e) -- (\x,\yc) -- (0,0) -- cycle;
		\draw[fill=green,opacity=0.2]
		(0,\yc) circle ({\R} and \e);
		\draw
		(-\x,\y) -- (0,0) -- (\x,\y);
		\draw
		(0,\yc) circle ({\R} and \e);
	\end{scope}
	
	% AK4 cone 2
	\begin{scope}[rotate=-10]
		\shade[right color=white,left color=red,opacity=0.3]
		(-\x,\yc) -- (-\x,\yc) arc (180:360:{\R} and \e) -- (\x,\yc) -- (0,0) -- cycle;
		\draw[fill=red,opacity=0.2]
		(0,\yc) circle ({\R} and \e);
		\draw
		(-\x,\y) -- (0,0) -- (\x,\y);
		\draw
		(0,\yc) circle ({\R} and \e);
	\end{scope}
\end{tikzpicture}

% TikZ code
% 2D CONE
\begin{tikzpicture}%,scale=0.85
	% cone variables
	\def\x{2.0}
	\def\y{4.0}
	\def\R{\x}
	\def\yc{\y+0.02}
	\def\e{0.4}
	
	% cone shades + frame
	\shade[right color=white,left color=mylightgreen,opacity=0.3]
	(-\x,\yc) -- (-2,4) arc (180:360:{\R} and \e) -- (\x,\yc) -- (0,0) -- cycle;
	\draw[fill=green,opacity=0.2]
	(0,\yc) circle ({\R} and \e);
	\draw
	(-\x,\y) -- (0,0) -- (\x,\y);
	\draw
	(0,\yc) circle ({\R} and \e);
	
	% tracks
	\draw[thick]
	(0,0) arc (320:360:-3 and 6.0); %node[above] {1};
	\draw[thick]
	(0,0) arc (-70:  0:0.8 and 3.5); %node[above] {2};
	\draw[thick]
	(0,0) arc (  0: 70:0.9 and 4.5); %node[above] {3};
	\draw[thick]
	(0,0) arc (180:140:2 and 6.0); %node[above] {4};
	\draw[thick,dashed]
	(0,0) -- (1,4.6);
\end{tikzpicture}
\end{document}