Transverse plane & missing momentum

Transverse plane of the CMS detector, and illustrating the concept of missing transverse momentum or energy (MET).
Also shown are there tracks and calorimeter deposits of a jet.

Edit and compile if you like:

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% Author: Izaak Neutelings (April 2022)
% Description: MET in the CMS detector
% CMS ECAL granularity: https://cds.cern.ch/record/349375/files/ECAL_TDR.pdf
\documentclass[border=3pt,tikz]{standalone}
\usepackage{amsmath}
\tikzset{>=latex} % set default arrow head as latex
\tikzstyle{calo}=[draw=blue!60!green!50!black,fill=blue!60!green!90!black!70,
                  line width=0.6,rounded corners=0.2]
\tikzstyle{ecal}=[calo,draw=red!90!green!60!black,fill=red!85!green!90!black!80]
\tikzstyle{MET}=[->,red,line width=1.2,dashed]
\newcommand*{\myvec}[1]{\vec{\mkern0mu#1}} % correct misalignment in \vec
\newcommand{\ptmiss}{\myvec{p}_\mathrm{T}^\mathrm{\,miss}}
\begin{document}
% (CMS) EVENT DISPLAY with CALO DEPOSITS, MUON & MET
\begin{tikzpicture}[scale=0.7,rotate=0]
  \def\R{2} % tracker outer radius
  \def\dang{4} % angular granularity of calo deposits, CMS: 0.0175*180/pi = 1
  
  %% HELP LINE GRID
  %\draw[black!20,opacity=0.2,very thin]
  %  \foreach \r in {0.2,0.4,...,4.4}{(0,0) circle(\r)}
  %  \foreach \a in {0,10,...,350}{(0,0) -- (\a:4.4)};
  %\draw[black!40,opacity=0.2,thin]
  %  \foreach \r in {1,...,4}{(0,0) circle(\r)}
  %  \foreach \a in {0,30,...,330}{(0,0) -- (\a:4.4)};
  
  % HCAL DEPOSITS
  \foreach \dr [count=\i,
                evaluate={\r=\R+\dr; \anga=12+\dang*\i; \angb=\anga+\dang;}
               ] in {0.2,0.8,1.2,2.1,1.9,1.4,0.6,0.8,0.4,0.6,0.2}{
    \draw[calo] (0,0) -- (\anga:\r) arc(\anga:\angb:\r) -- cycle;
    %\draw[calo]
    %  (\anga:\R) -- (\anga:\r) arc(\anga:\angb:\r)
    %  -- (\angb:\R) arc(\angb:\anga:\R) -- cycle;
  }
  
  % ECAL DEPOSITS
 
 
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