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\begin{document}

\title[e Reco. Validation]{Offline Electron Reconstruction Validation}
\author[C. Fangmeier]{\textbf{Caleb Fangmeier}\\ Ilya Kravchenko}
\institute[UNL]{University of Nebraska \-- Lincoln}
\date{July 17, 2017}

\titlegraphic{%
\begin{figure}
  \includegraphics[width=1in]{CMSlogo.png}\hspace{0.75in}\includegraphics[width=1in]{nebraska-n.png}
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\begin{frame}[noframenumbering,plain]
  \titlepage%
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\begin{frame}{Introduction}
  \begin{itemize}
    \item Ongoing studies\footnote{\url{https://indico.cern.ch/event/613833/contributions/2646392/attachments/1486134/2307836/EGMHLT_PixelMatching_Jun30.pdf}} in HLT examine the resolution of RecHits used in GSF Tracking
    \item In those studies, the resolution is computed by measuring the distance between the RecHits and the extrapolated paths from ECAL super-clusters (SCs).
    \item For offline reconstruction, we compute residuals by comparing the position of RecHits and associated SimHits.
    \item Knowing these resolutions is important in choosing the size of search windows in the k
  \end{itemize}
\end{frame}

\begin{frame}{Introduction}
  \begin{itemize}
    \item We use Rafael Lopes de Sa's analysis setup\footnote{\url{https://github.com/rafaellopesdesa/cmssw/tree/ValidationGsfTracks81X}} that is derived from the standard offline tracking reconstruction tool TrackingNtuple from Validation/RecoTrack.
    \item Source dataset: \\ \small \texttt{/DYJetsToLL\_M-50\_TuneCUETP8M1\_13TeV-madgraphMLM-pythia8/\\ PhaseIFall16DR-FlatPU28to62HcalNZSRAW\_81X\_upgrade2017\_realistic\_v26-v1/\\ GEN-SIM-RAW}
    \item Using Release \texttt{CMSSW\_8\_1\_0}
    \item Figures in this talk use 10829 events (could be re-run with more)
  \end{itemize}
\end{frame}

\begin{frame}{Preliminary Results}
  \begin{columns}
  \begin{column}{0.49\textwidth}
    \begin{figure}
      \includegraphics[height=3.8cm]{figures/dphi_matched_hits_from_B1.png}
    \end{figure}
  \end{column}
  \begin{column}{0.49\textwidth}
    \begin{figure}
      \includegraphics[height=3.8cm]{figures/dphi_matched_hits_from_B2.png}
    \end{figure}
  \end{column}
  \end{columns}
  \hrule \vspace{.2cm}
  $\Delta \phi$ betwen RecHits and SimHits for innermost hits in seeds where that hit is in BPIX Layer 1/2.
\end{frame}

\begin{frame}{Preliminary Results}
  \begin{columns}
  \begin{column}{0.49\textwidth}
    \begin{figure}
      \includegraphics[height=3.8cm]{figures/dz_matched_hits_from_B1.png}
    \end{figure}
  \end{column}
  \begin{column}{0.49\textwidth}
    \begin{figure}
      \includegraphics[height=3.8cm]{figures/dz_matched_hits_from_B2.png}
    \end{figure}
  \end{column}
  \end{columns}
  \hrule \vspace{.2cm}
  $\Delta z$ betwen RecHits and SimHits for innermost hits in seeds where that hit is in BPIX Layer 1/2.
\end{frame}

\begin{frame}{Conclusions}
  \begin{itemize}
    \item Code for this analysis is here: \\ \small \begin{center}\url{https://git.fangmeier.tech/caleb/EGamma_ElectronTrackingValidation}\end{center}
    \item What specific figures/measurements are of interest to experts?
  \end{itemize}
\end{frame}

\end{document}
