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\author{ {M.Chrzaszcz~A.Mauri~R.Coutinho} (UZH)}
\institute{UZH}
\title[$\PBzero \to \PKstar \Pmuon \APmuon$ Update]{$\PBzero \to \PKstar \Pmuon \APmuon$ Update}
\date{30 January 2017}
\begin{document}
\tikzstyle{every picture}+=[remember picture]
{
\setbeamertemplate{sidebar right}{\llap{\includegraphics[width=\paperwidth,height=\paperheight]{bubble2}}}
\begin{frame}[c]%{\phantom{title page}}
\begin{center}
\begin{center}
\begin{columns}
\begin{column}{0.75\textwidth}
\flushright\bfseries \Huge {$\PBzero \to \PKstar \Pmuon \APmuon$\\ Selection Update}
\end{column}
\begin{column}{0.02\textwidth}
{~}
\end{column}
\begin{column}{0.23\textwidth}
% \hspace*{-1.cm}
\vspace*{-3mm}
\includegraphics[width=0.6\textwidth]{lhcb-logo}
\end{column}
\end{columns}
\end{center}
\quad
\vspace{3em}
\begin{columns}
\begin{column}{0.44\textwidth}
\flushright \vspace{-1.8em} { \large Marcin Chrzaszcz\\\vspace{-0.1em} \large Andrea Mauri\\\vspace{-0.1em} \large Rafael Silva Coutinho\\\vspace{-0.1em} }
\end{column}
\begin{column}{0.53\textwidth}
\includegraphics[height=1.3cm]{uzh-transp}
\end{column}
\end{columns}
\vspace{0.2em}
with input from Eluned Anne Smith\\
\vspace{1em}
\vspace{0.5em}
\textcolor{normal text.fg!50!Comment}{$\PBzero \to \PKstar \Pmuon \APmuon$ meeting, CERN\\February 28, 2017}
\end{center}
\end{frame}
}
\begin{frame}\frametitle{Topics on discussion}
\begin{enumerate}
\item Trigger
\item Data/MC corrections
\item BDT training
\item PID re sampling
\item Exotic pollutions to $\PB \to \PKstar \PJpsi$.
\item VARIA
\end{enumerate}
\end{frame}
\begin{frame}\frametitle{Trigger efficiencies \texttt{L0Muon}}
\ARROW We studied the trigger efficiency on Run2 MC.\\
\begin{tabular}{l||c|c}
\hline
Name & Absolute $\epsilon$ & Relative $\epsilon$\\ \hline
\texttt{L0Muon} & $78.1065~\%$ & -------- \\ \hline \hline
\texttt{Hlt1TrackMVA} & $74.5579\%$ & $95.4568\%$\\
\texttt{Hlt1TwoTrackMVA} & $76.7186\%$ & $98.2231\%$\\
\texttt{Hlt1TrackMuon} & $77.2776\%$ & $98.9388\%$\\
\texttt{Hlt1DiMuonLowMass} & $77.4331\%$ & $99.1379\%$ \\
\texttt{Hlt1SingleMuonHighPT } & $77.4436\%$ & $99.1513\%$ \\
\texttt{Hlt1DiMuonHighMass} & $ 77.4518\%$ & $99.1619\%$\\
\texttt{Hlt1TrackMVALoose} & $ 77.4518\%$ & $99.1619\%$\\
\texttt{Hlt1TwoTrackMVALoose} & $ 77.4518\%$ & $99.1619\%$\\ \hline \hline
\end{tabular}
\end{frame}
\begin{frame}\frametitle{Trigger efficiencies \texttt{L0Muon}}
\ARROW We studied the trigger efficiency on Run2 MC.\\
\begin{tabular}{l||c|c}
\hline
Name & Absolute $\epsilon$ & Relative $\epsilon$\\ \hline
\texttt{Hlt2TopoMu2BodyBBDT} & $70.296\%$ & $90.7609\%$\\
\texttt{Hlt2DiMuonDetached} & $73.9044\%$ & $95.4198\%$\\
\texttt{Hlt2Topo3BodyBBDT} & $75.2972\%$ & $97.2181\%$\\
\texttt{Hlt2SingleMuon} & $75.9356\%$ & $98.0424\%$\\
\texttt{Hlt2Topo2BodyBBDT} & $76.0233 \%$ & $98.1556\%$\\
\texttt{Hlt2TopoMuMu2BodyBBDT} & $76.0794 \%$ & $98.228\%$\\
\texttt{Hlt2TopoMu3BodyBBDT } & $76.0986 \%$ & $98.2528\%$\\
\texttt{Hlt2TopoMuMu4BodyBBDT} & $76.1101 \%$ & $98.2677\%$\\
\texttt{Hlt2TopoMuMu3BodyBBDT} & $76.1156 \%$ & $98.2748\%$\\
\texttt{Hlt2SingleMuonHighPT} & $76.125 \%$ & $98.2869\%$\\
\texttt{Hlt2SingleMuonRare} & $76.1288 \%$ & $98.2918\%$\\
\texttt{Hlt2Topo4BodyBBDT } & $76.1291 \%$ & $98.2922\%$\\
\texttt{Hlt2TopoMu4BodyBBDT } & $76.1291\%$ & $98.2922\%$\\
\texttt{Hlt2SingleMuonLowPT } & $76.1291\%$ & $98.2922\%$\\
\end{tabular}
\end{frame}
%%%%% Here we put flatness
\begin{frame}\frametitle{Trigger efficiencies \texttt{L0Muon}}
\includegraphics[width=0.45\textwidth]{images/costhetak_LOMuon.png}
\includegraphics[width=0.45\textwidth]{images/costhetal_LOMuon.png}\\
\includegraphics[width=0.45\textwidth]{images/phi_LOMuon.png}
\includegraphics[width=0.45\textwidth]{images/q2_LOMuon.png}\\
\end{frame}
\begin{frame}\frametitle{Trigger efficiencies \texttt{L0Muon}$\Vert $\texttt{L0DiMuon}}
\ARROW We studied the trigger efficiency on Run2 MC.\\
\begin{tabular}{l||c|c}
\hline
Name & Absolute $\epsilon$ & Relative $\epsilon$\\ \hline
\texttt{L0Muon}$\Vert $\texttt{L0DiMuon} & $81.5517~\%$ & -------- \\ \hline \hline
\texttt{Hlt1TrackMVA} & $77.7613\%$ & $95.3522\%$\\
\texttt{Hlt1TwoTrackMVA} & $80.0632\%$ & $98.1748\%$\\
\texttt{Hlt1TrackMuon} & $80.6849\%$ & $98.9371\%$\\
\texttt{Hlt1SingleMuonHighPT} & $80.7013\%$ & $98.9573\%$ \\
\texttt{Hlt1DiMuonLowMass } & $80.8558\%$ & $99.1467\%$ \\
\texttt{Hlt1DiMuonHighMass } & $80.864\%$ & $99.1568\%$ \\
\texttt{Hlt1TrackMVALoose} & $ 80.864 \%$ & $99.1568\%$\\
\texttt{Hlt1TwoTrackMVALoose} & $ 80.864\%$ & $99.1568\%$\\
\end{tabular}
\end{frame}
\begin{frame}\frametitle{Trigger efficiencies \texttt{L0Muon}$\Vert $\texttt{L0DiMuon}}
\ARROW We studied the trigger efficiency on Run2 MC.\\
\begin{tabular}{l||c|c}
\hline
Name & Absolute $\epsilon$ & Relative $\epsilon$\\ \hline
\texttt{Hlt2TopoMu2BodyBBDT} & $73.269\%$ & $90.6077\%$\\
\texttt{Hlt2DiMuonDetached} & $77.1023\%$ & $95.348\%$\\
\texttt{Hlt2Topo3BodyBBDT} & $78.5627 \%$ & $97.154\%$\\
\texttt{Hlt2SingleMuon} & $79.2459\%$ & $97.9989\%$\\
\texttt{Hlt2Topo2BodyBBDT} & $79.3382\%$ & $98.1131\%$\\
\texttt{Hlt2TopoMuMu2BodyBBDT}& $ 79.3965\%$ & $98.1852\%$\\
\texttt{Hlt2TopoMu3BodyBBDT} & $79.4168\%$ & $98.2103\%$\\
\texttt{Hlt2TopoMuMu4BodyBBDT} & $79.43\%$ & $98.2266\%$\\
\texttt{Hlt2SingleMuonHighPT} & $79.4394\%$ & $98.2382\%$\\
\texttt{Hlt2TopoMuMu3BodyBBDT} & $79.4454 \%$ & $98.2456\%$\\
\texttt{Hlt2SingleMuonRare} & $79.4493 \%$ & $98.2504\%$\\
\texttt{Hlt2Topo4BodyBBDT} & $79.4495 \%$ & $98.2507\%$\\
\texttt{Hlt2TopoMu4BodyBBDT} & $79.4495 \%$ & $98.2507\%$\\
\texttt{Hlt2SingleMuonLowPT} & $79.4496 \%$ & $98.2508\%$\\
\end{tabular}
\end{frame}
\begin{frame}\frametitle{Trigger efficiencies \texttt{L0Muon}$\Vert $\texttt{L0DiMuon}}
\includegraphics[width=0.45\textwidth]{images/costhetak_LODiMuon.png}
\includegraphics[width=0.45\textwidth]{images/costhetal_LODiMuon.png}\\
\includegraphics[width=0.45\textwidth]{images/phi_LODiMuon.png}
\includegraphics[width=0.45\textwidth]{images/q2_LODiMuon.png}\\
\end{frame}
\begin{frame}\frametitle{Trigger validation on the $\PB \to \PKstar \PJpsi$}
\includegraphics[width=0.95\textwidth]{images/effjpsi.png}
\end{frame}
\begin{frame}\frametitle{Trigger validation on the $\PB \to \PKstar \PJpsi$}
\includegraphics[width=0.95\textwidth]{images/effjpsi2.png}
\end{frame}
\begin{frame}\frametitle{Trigger validation on the $\PB \to \PKstar \Ppsi(2S)$}
\includegraphics[width=0.95\textwidth]{images/effPsi2S.png}
\end{frame}
\begin{frame}\frametitle{Trigger validation on the $\PB \to \PKstar \Ppsi(2S)$}
\includegraphics[width=0.95\textwidth]{images/effPsi2S.png}
\end{frame}
\begin{frame}\frametitle{Trigger Summary}
\ARROW We propose:
\texttt{L0Muon} $\Vert$ \texttt{L0DiMuon}\\
\texttt{Hlt1TrackMVA}, \texttt{Hlt1TwoTrackMVA}, \texttt{Hlt1TrackMuon}\\
\texttt{Hlt2TopoMu2BodyBBDT}, \texttt{Hlt2DiMuonDetached}, \texttt{Hlt2Topo3BodyBBDT}, \texttt{Hlt2SingleMuon}, \texttt{Hlt2Topo2BodyBBDT}\\
\ARROW Simplifies life, unifies the selection for 2015 and 2016 and keeps the same efficiency.\\
\ARROW Eluned found same results with her independent studies. \\
\ARROW Total numbers:
\begin{tabular}{|l|c|c|}
\hline
L0 & Simple HLT & Full HLT\\ \hline \hline
\texttt{L0Muon} & $76.41\%$ & $76.64\%$\\
\texttt{L0Muon} & $79.77\%$ & $80.00\%$\\ \hline
\end{tabular}
\end{frame}
\iffalse
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}\frametitle{Data MC corrections}
\ARROW There are now two standard ways how to correct the MC:
\begin{enumerate}
\item Adaptive reweighing.
\item N-dim histogram reweighing.
\item BDT - reweighing.
\end{enumerate}
\end{frame}
\fi
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}\frametitle{Data/MC corrections 2}
\ARROW Our biggest systematic came from the $\Ppi$ $p_T$ spectrum.\\
\ARROW Lets get rid of this issue:)\\
\ARROW The idea is the following: we compare our p-wave MC with what we have in data.\\
\ARROW What I did is to compute the weight: real model / pwave model.\\
\ARROW I then apply the weight to our MC and compare with data.\\
\end{frame}
\begin{frame}\frametitle{Data/MC corrections 2}
\begin{center}
\includegraphics[width=0.99\textwidth]{images/Pi_PT.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Data/MC corrections 2}
\begin{center}
\includegraphics[width=0.99\textwidth]{images/K_PT.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Data/MC corrections 2}
\begin{center}
\includegraphics[width=0.45\textwidth]{images/mu_minus_PT.png}\\
\includegraphics[width=0.45\textwidth]{images/mu_plus_PT.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Meerkat- PID corrections}
\ARROW We have made first PID corrections using Meerkat:\\
\begin{center}
\includegraphics[width=0.45\textwidth]{images/Pi_PIDK.png}
\includegraphics[width=0.45\textwidth]{images/K_PIDK.png}\\
\includegraphics[width=0.45\textwidth]{images/Pi_PIDp.png}
\includegraphics[width=0.45\textwidth]{images/K_PIDp.png}
\end{center}
\ARROW We are still missing the muon re sampling(ongoing).\\
\ARROW We will cross check with old re sampling.
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}\frametitle{Angle separation}
\ARROW Let's see the angle separation between the two tracks:
\begin{center}
\includegraphics[width=0.45\textwidth]{images/angle/phi.png}
\includegraphics[width=0.45\textwidth]{images/angle/phin.png}\\
\includegraphics[width=0.45\textwidth]{images/angle/q2.png}\includegraphics[width=0.45\textwidth]{images/angle/q2n.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Angle separation}
\ARROW Let's see the angle separation between the two tracks:
\begin{center}
\includegraphics[width=0.45\textwidth]{images/angle/costhetak.png}
\includegraphics[width=0.45\textwidth]{images/angle/costhetakn.png}\\
\includegraphics[width=0.45\textwidth]{images/angle/costhetal.png}\includegraphics[width=0.45\textwidth]{images/angle/costhetaln.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Angle separation}
\ARROW Release the $\PK$ $\Ppi$ angle:
\begin{center}
\includegraphics[width=0.45\textwidth]{images/angle2/costhetak.png}
\includegraphics[width=0.45\textwidth]{images/angle2/costhetakn.png}\\
\includegraphics[width=0.45\textwidth]{images/angle2/costhetal.png}\includegraphics[width=0.45\textwidth]{images/angle2/costhetaln.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Angle separation}
\ARROW Release the $\PK$ $\Ppi$ angle and tighter the other angles:
\begin{center}
\includegraphics[width=0.45\textwidth]{images/angle3/costhetak.png}
\includegraphics[width=0.45\textwidth]{images/angle3/costhetakn.png}\\
\includegraphics[width=0.45\textwidth]{images/angle3/costhetal.png}\includegraphics[width=0.45\textwidth]{images/angle3/costhetaln.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Angle separation}
\ARROW Release the $\PK$ $\Ppi$ angle and tighting the other angles:
\begin{center}
\includegraphics[width=0.45\textwidth]{images/angle3/phi.png}
\includegraphics[width=0.45\textwidth]{images/angle3/phin.png}\\
\includegraphics[width=0.45\textwidth]{images/angle3/q2.png}\includegraphics[width=0.45\textwidth]{images/angle3/q2n.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Angle separation}
\ARROW Everything tighting:
\begin{center}
\includegraphics[width=0.45\textwidth]{images/angle4/costhetak.png}
\includegraphics[width=0.45\textwidth]{images/angle4/costhetakn.png}\\
\includegraphics[width=0.45\textwidth]{images/angle4/costhetal.png}\includegraphics[width=0.45\textwidth]{images/angle4/costhetaln.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Angle separation}
\ARROW Everything tighting:
\begin{center}
\includegraphics[width=0.45\textwidth]{images/angle4/phi.png}
\includegraphics[width=0.45\textwidth]{images/angle4/phin.png}\\
\includegraphics[width=0.45\textwidth]{images/angle4/q2.png}\includegraphics[width=0.45\textwidth]{images/angle4/q2n.png}
\end{center}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}\frametitle{BDT}
\ARROW We have started to train the BDT.\\
\ARROW For now we used MC PHSP as signal and side-bands.\\
\ARROW Variables:
\begin{itemize}
\item \texttt{B0\_ENDVERTEX\_CHI2}
\item \texttt{B0\_IP\_OWNPV}
\item \texttt{B0\_IPCHI2\_OWNPV}
\item \texttt{B0\_FD\_OWNPV}
\item \texttt{B0\_FDCHI2\_OWNPV}
\item \texttt{B0\_P}
\item \texttt{B0\_PT}
\item \texttt{B0\_relinfo\_VTXISOBDTHARDFIRSTVALUE}
\end{itemize}
\end{frame}
\begin{frame}\frametitle{BDT ROC}
\begin{center}
\includegraphics[width=0.95\textwidth]{images/roc.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{BDT ranking}
\begin{center}
\includegraphics[width=0.95\textwidth]{images/index.png}
\end{center}
\end{frame}
\begin{frame}\frametitle{Conclusions}
\begin{itemize}
\item PID works reasonably well, but still needs a bit of work.
\item To fully test the BDT we need the re sampled MC.
\item I think we can fix the preselection today.
\item Trigger study performed.
\item Discrepancy on the \texttt{Pi\_PT} fixed and others are under control.
\end{itemize}
\end{frame}
\backupbegin
\begin{frame}\frametitle{Backup}
\topline
\end{frame}
\backupend
\end{document}
Marcin Chrzaszcz