Pzeta definition

Construction of the P_ζ variable to help discriminate against backgrounds in H → 𝜏𝜏 analyses in proton-proton collision data at the CMS detector. Inspired by Jang Dongwook’s dissertation.

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% Basic drawings
% https://www.sharelatex.com/blog/2013/08/27/tikz-series-pt1.html
% https://www.tug.org/TUGboat/tb29-1/tb91walczak.pdf
\documentclass{article}
\usepackage{amsmath}
\usepackage{tikz}
\tikzset{>=latex} % for LaTeX arrow head
\usetikzlibrary{calc} % to add coordinates
\newcommand*{\vv}[1]{\vec{\mkern0mu#1}} % correct misalignment
%\newcommand{\sq}{\medmuskip=1mu \thinmuskip=1mu \thickmuskip=1mu} % squeeze
% split figures into pages
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{tikzpicture}
\setlength\PreviewBorder{5pt}%
\begin{document}
% PZETA
\begin{tikzpicture}
  
  % vector labels
  \def\pTM{\vv{p}^\text{\tiny\,miss}_\text{\tiny\,T}}
  \def\pT{ \vv{p}^\text{\tiny\,vis}_\text{\tiny\,T}}
  \def\pTA{\vv{p}^\text{\tiny\,vis}_\text{\tiny\,T,1}} %$\ell$
  \def\pTB{\vv{p}^\text{\tiny\,vis}_\text{\tiny\,T,2}} %$\tau_\text{h}$
  
  % define point
  \coordinate (O)  at (0.0, 0.0);
  \coordinate (Z)  at (4.0, 0.0);
  \coordinate (A)  at (1.0, 1.8);
  \coordinate (B)  at (1.2,-2.16);
  \coordinate (M)  at (3.0,-1.0);
  \coordinate (AB) at ($(A)+(B)$);
  \path let \p{AB}=(AB) in coordinate (P) at (\x{AB},0); % projection
  \path let \p{M} =(M)  in coordinate (Q) at (\x{M},0); % projection
  
  % axis
  \draw[->,densely dashed]
 
 
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