- % This program can be redistributed and/or modified under the terms
- % of the GNU Public License, version 3.
- %
- % Seth Brown, Ph.D.
- % sethbrown@drbunsen.org
- %
- % Compiled with XeLaTeX
- % Dependencies:
- % Fontin Sans font (http://www.exljbris.com/fontinsans.html)
- %
- \documentclass{beamer}
- \usepackage{pgf}
- \usepackage{times}
- \usepackage[T1]{fontenc}
- %\usepackage[mathscr]{eucal}
- %\usepackage{mathptmx}
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- % \usepackage{pgfpagfes}
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- %\usepackage[dvipsnames]{xcolor}
- %\usepackage{amsfonts}
- %\usepackage{amsmath}
- % \usepackage[amssymb]{SIunits}
- %\usepackage{natbib}
- %\usepackage{amssymb}
- \usepackage{hepparticles}
- \usepackage{hepnicenames}
- \usepackage{hepunits}
- \usepackage{tikz}
- \usepackage[polish]{babel}
- %\usepackage{lmodern}
- \usepackage{feynmp}
- % suppress navigation bar
- \beamertemplatenavigationsymbolsempty
- \usepackage[mathscr]{eucal}
- \usepackage{mathrsfs}
- \mode<presentation>
- {
- \usetheme{bunsen}
- \setbeamercovered{transparent}
- \setbeamertemplate{items}[circle]
- }
-
- % set fonts
- \usepackage{amsfonts}
- \usepackage{amsmath}
- \usepackage{verbatim}
-
- \usetikzlibrary{arrows}
- \usetikzlibrary{shapes}
-
- %\usepackage{gfsartemisia-euler}
- %\usepackage[T1]{fontenc}
- \setbeamerfont{frametitle}{size=\LARGE,series=\bfseries}
- \tikzstyle{decision} = [diamond, draw, fill=gray!20,
- text width=4.5em, text badly centered, node distance=3cm, inner sep=0pt]
- \tikzstyle{block} = [rectangle, draw, fill=blue!10,
- text width=5em, text centered, rounded corners, minimum height=2em]
- \tikzstyle{line} = [draw, -latex']
- \tikzstyle{cloud} = [draw, ellipse,fill=red!10, node distance=3cm,
- minimum height=2em]
-
- \tikzstyle{every picture}+=[remember picture]
-
-
- \renewcommand{\PKs}{{\HepParticle{K}{S}{}\xspace}}
- % color definitions
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- \definecolor{uipoppy}{RGB}{225, 64, 5}
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-
- % caption styling
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- %\DeclareCaptionFont{uipoppy}{\color{uipoppy}}
- %\captionsetup{labelfont={uipoppy},textfont=uiblack}
-
- % see the macros.tex file for definitions
- \include{macros}
-
- % title slide definition
- \title{Search for LFV and LNV decays at LHCb}
- \author{Marcin Chrz\k{a}szcz}
- \institute[Institute of Nuclear Physics]
- {
- Institute of Nuclear Physics,
- \newline Polish Academy of Science,
- \newline on behalf of LHCb collaboration
- }
-
-
-
- \date{\today}
-
- %--------------------------------------------------------------------
- % Introduction
- %--------------------------------------------------------------------
-
- \begin{document}
-
-
-
- \setbeamertemplate{background}
- {\includegraphics[width=\paperwidth,height=\paperheight]{frontpage_bg_mine}}
- \setbeamertemplate{footline}[default]
-
- \begin{frame}
- \vspace{1.5cm}
- \begin{columns}
- \column{2.75in}
- \titlepage
- \vspace{0.8cm}
- \begin{center}
- \includegraphics[height=1.0cm,keepaspectratio ]{pic/ifj.png}
- \hspace{1cm}
- \includegraphics[height=1.0cm]{pic/LHCb_logo.jpg}
- \end{center}
- \vspace{10cm}
- \column{2.0in}
- \end{columns}
- \end{frame}
-
- %--------------------------------------------------------------------
- % OUTLINE
- %--------------------------------------------------------------------
-
-
-
-
- \section[Outline]{}
- \begin{frame}
- \tableofcontents
- \end{frame}
-
-
-
-
-
-
-
- %-------------------------------------------------------------------
- % Introduction
- %-------------------------------------------------------------------
- %
- % Set the background for the rest of the slides.
- % Insert infoline
- \setbeamertemplate{background}
- {\includegraphics[width=\paperwidth,height=\paperheight]{slide_bg}}
- \setbeamertemplate{footline}[bunsentheme]
-
-
-
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
- \setbeamertemplate{background}
- {\includegraphics[width=\paperwidth,height=\paperheight]{slide_bg}}
- \setbeamertemplate{footline}[bunsentheme]
-
- \section{Lepton Number Violation}
- \subsection{$\PBminus\to h^{+}\Plepton^{-}\Plepton^{-}$}
- \begin{frame}%[t]
- \frametitle{LNV in bottom decays}%$\PBminus\to h^{+}\ell^{-}\ell^{-}$}
- \only<1>{
- \Large{$\PBminus\to h^{+}\Plepton^{-}\Plepton^{-}$}
- }
- \only<2>{
- \begin{columns}\begin{column}{.5\textwidth}
- on-shell neutrino
-
- \includegraphics[width=\textwidth]{pic/B-Majorana2.pdf}
- \end{column}
- {\begin{column}{.45\textwidth}
- virtual neutrino
-
- \includegraphics[width=\textwidth]{pic/B-Majorana1.pdf}
- \end{column}
- }
- \end{columns}
- \begin{columns}
- \begin{column}{.5\textwidth}
- \begin{itemize}
- \item resonant production in accessible mass range
- \item rates depend on Majorana neutrino--lepton coupling $|V_{\mu 4}|$
- \newline {\footnotesize{(e.g.\ \href{http://arxiv.org/abs/0901.3589}{arXiv:0901.3589)}}}
- \item $m_4 = m_{\Plepton^{-},\Ppiplus}$
- \end{itemize}
- \end{column}
- {
- \begin{column}{.5\textwidth}
- \begin{exampleblock}{special for $\PB$ decays}
- %\begin{itemize}
- diagram without mass restriction
- Cabbibo favoured for $\PB\to\PD$
- %\end{itemize}
- \end{exampleblock}
- \end{column}
- }
- \end{columns}
- }
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- \setbeamertemplate{background}
- {\includegraphics[width=\paperwidth,height=\paperheight]{slide_bg}}
- \setbeamertemplate{footline}[bunsentheme]
-
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
- \begin{frame}[t]
- \frametitle{virtual Majorana neutrinos}
-
-
- \begin{columns}
- \only<1>{
- \begin{column}{.78\textwidth}
- \begin{block}{}
- %\begin{itemize}
- $\PBminus\to\PDplus\Pmuon\Pmuon\quad\quad\quad\quad\quad\quad\PBminus\to\PD^{*+}\Pmuon\Pmuon$
- %\end{itemize}
- \includegraphics[width=\textwidth]{pic/MassFitDp_.pdf}
- \end{block}
- \end{column}
- }
-
-
- \end{columns}
- \only<1>{{
- {~}
-
-
- $\mathcal{B}(\PBminus\to\PDplus\Pmuon\Pmuon)<6.9\times 10^{-7} \quad \quad \mathcal{B}(\PBminus\to\PD^{*+}\Pmuon\Pmuon)<2.4\times 10^{-6}$
- }}
-
-
- {@ 95\,\% CL}\hspace{.35\textwidth}
- {@ 95\,\% CL}
-
- {~}
-
- \begin{columns}
- \begin{column}{6.5cm}
- \end{column}
- \begin{column}{1.5cm}
- \includegraphics[width=\textwidth]{pic/LHCb_logo.jpg}
- \end{column}
- \begin{column}{4cm}
- \hspace{.4cm}
-
- $\unit{0.41}{\reciprocal\femtobarn}$
-
- {\footnotesize{\href{http://arxiv.org/abs/1201.5600}{\texttt{arXiv:1201.5600}}}}
-
- \end{column}
- \end{columns}
-
- %LHCb, arXiv:1201.5600
- %\includegraphics[width=.5\textwidth]{UpperAll}
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-
-
-
- \begin{frame}[t]
- \frametitle{on-shell Majorana neutrinos}
-
- \begin{itemize}
- %\item best limits for $h = \PDplus, \PD^{*+}, \Ppiplus, \PDs$ from LHCb using $\unit{0.41}{\reciprocal\femtobarn}$ %, \PKplus
- %\item normalisation relative to $\PBplus\to\PKplus\PJpsi$ and $\PBplus\to\PKplus\Ppsi(2S)$
- \item mis-identification rates from data with mass shape from simulation
- \end{itemize}
- \begin{columns}
-
- \only<1>{
- \begin{column}{.72\textwidth}
- \begin{block}{}
- $\PBminus\to\Ppiplus\Pmuon\Pmuon\quad\quad\quad\quad\PBminus\to\PDs^{+}\Pmuon\Pmuon$
- \only<1>{\includegraphics[width=.44\textwidth]{pic/MassFitPi2}\hspace{.04\textwidth}\includegraphics[width=.46\textwidth]{pic/MassFitDs_}}
- \end{block}
- \end{column}
- }
-
- \end{columns}
-
-
- \only<1>{{
- {~}
-
- assuming $\PBminus$ phase space decay:
-
- $\mathcal{B}(\PBminus\to\Ppiplus\Pmuon\Pmuon)<1.3\times 10^{-8} \quad \quad \mathcal{B}(\PBminus\to\PDs\Pmuon\Pmuon)<5.8\times 10^{-7}$
- }}
-
- {@ 95\,\% CL}\hspace{.35\textwidth}
- {@ 95\,\% CL}
- \begin{columns}
- \begin{column}{6.5cm}
- \end{column}
- \begin{column}{1.5cm}
- \includegraphics[width=\textwidth]{pic/LHCb_logo.jpg}
- \end{column}
- \begin{column}{4cm}
- \hspace{.4cm}
-
- $\unit{0.41}{\reciprocal\femtobarn}$
-
- {\footnotesize{\href{http://arxiv.org/abs/1201.5600}{\texttt{arXiv:1201.5600}}}}
-
- \end{column}
- \end{columns}
-
-
- %LHCb, arXiv:1201.5600
- %\includegraphics[width=.5\textwidth]{UpperAll}
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- \begin{frame}
- \frametitle{implications on Majorana mass}
- \begin{exampleblock}{mass spectrum}
- Determine limit as function of $h^{+}\Pmuon$ mass
- \end{exampleblock}
- {\begin{center}
- $\PBminus\to\Ppiplus\Pmuon\Pmuon\quad\quad\quad\PBminus\to\PDs^{+}\Pmuon\Pmuon$
-
- {~}
-
- \includegraphics[width=.82\textwidth]{./UpperTwoBody}\end{center}}
-
- \begin{columns}
- \begin{column}{6.5cm}
- \end{column}
- \begin{column}{1.2cm}
- \includegraphics[width=\textwidth]{pic/LHCb_logo.jpg}
- \end{column}
- \begin{column}{4cm}
- \hspace{.4cm}
-
- $\unit{0.41}{\reciprocal\femtobarn}$
-
- {\footnotesize{\href{http://arxiv.org/abs/1201.5600}{\texttt{arXiv:1201.5600}}}}
-
- \end{column}
- \end{columns}
-
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- \subsection{$\PBminus\to\PDzero\Ppiplus\Pmuon\Pmuon$}
- %\section{LNV in $\PBminus\to h^{0} h^{\prime+}\Plepton^{-}\Plepton^{-}$} %LHCb
- \begin{frame}{$\PBminus\to\PDzero \Ppiplus\Pmuon\Pmuon$}
- \begin{columns}\begin{column}{.5\textwidth}
- \includegraphics[width=\textwidth]{./B-Majorana3}
- \end{column}
- \end{columns}
- \begin{itemize}
- \item Four body $\PB$ decay complementary to three body decay\newline{\footnotesize{ (\href{http://arxiv.org/abs/1108.6009}{\texttt{arXiv:1108.6009}})}}
- %\item Constraints predict $\mathcal{B}(\PB\to\PD\ell\ell)<10^{-6}$
- \item $m_4=m(\Ppiplus\Pmuon)$
- \item[+] enhanced by $\PW$ couplings
- \item[-] smaller mass range accessible ($\unit{260}{\MeV}<m_4<\unit{3.3}{\GeV}$)
- \item first performed at LHCb
- \end{itemize}
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
-
- \begin{frame}
- \frametitle{$\PBminus\to\PDzero \Ppiplus\Pmuon\Pmuon$}
-
- \includegraphics[width=.47\textwidth]{./MassFitD0}\includegraphics[width=.47\textwidth]{./UpperThreeBody}
-
- {~}
- \begin{columns}
- \begin{column}{.8\textwidth}
- \hspace{.1\textwidth} $\mathcal{B}(\PBminus\to\PDzero\Ppiplus\Pmuon\Pmuon)<1.5\times 10^{-6}$ @$95\,\%$ CL \footnote{LHCb, CERN-PH-EP-2012-006, \href{http://arxiv.org/abs/1201.5600}{\texttt{arXiv:1201.5600}}}
- \smallskip
-
- \hspace{.1\textwidth} Less restrictive than $\PBminus\to\Ppiplus\Pmuon\Pmuon$ on $|V_{\mu 4}|^2$
- \end{column}
- \begin{column}{.2\textwidth}
- \includegraphics[width=1.3cm]{pic/LHCb_logo.jpg}
- \end{column}
- \end{columns}
-
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
- \section{Lepton Flavour Violation}
- \begin{frame}
- \begin{center}
- {\Huge{Lepton Flavour Violation}}
-
- {~}
- \begin{block}{}
- \circled{1} $\Ptauon\to\Pmuon\Pmuon\APmuon$ \\
- \circled{2} $\Ptauon\to\APproton\Pmuon\APmuon$
- \end{block}
-
- \end{center}
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-
-
- \subsection{$\Ptauon\to\Pmuon\Pmuon\APmuon$}
- \begin{frame}\frametitle{Curent status}
-
-
- \frametitle{LFV in $\Ptauon$ sector}%$\PBminus\to h^{+}\ell^{-}\ell^{-}$}
- \only<1>{
- \Large{$\Ptauon\to\Pmuon\Pmuon\APmuon$}
- }
- \only<2>{
-
-
-
- \begin{center}
- \begin{block}{}
- \circled{1} In SM small $\mathcal{B}( \Ptauon\to\Pmuon\Pmuon\APmuon ) \sim 10^{-50} $ \\
- \circled{2} NP can enhance $\mathcal{B}$. \\
- \circled{3} Nature still hides $\Ptauon\to\Pmuon\Pmuon\APmuon$ from us.\\
- \circled{4} Current limits:
- \begin{center}
- \begin{tabular}{| l | l |}
- \hline Experiment & $90\%$ CL limit \\
- \hline
- \hline BaBar & $3.3 \times 10^{-8}$ \\
- \hline Belle & $2.1 \times 10^{-8}$ \\
- \hline
- \end{tabular}
- \end{center}
- \circled{5} Can a hadron collider change the picture? \\
- \end{block}
-
-
-
-
-
-
-
- \end{center}
- }
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
- \begin{frame}\frametitle{Analysis aproach}
- \begin{columns}
- \column{2.5in}
- $\mathcal{B}$ factories
-
-
- \column{2.5in}
- LHCb
-
-
-
- \end{columns}
- \begin{columns}
- \column{2.5in}
-
-
- \begin{block}{}
- \circled{1} Clean signal: $\APelectron\Pelectron\to\APtauon\Ptauon$ \\
- \circled{2} Claculate the trust axis \\
- \circled{3} Semi tag the other tag \\
- \end{block}
- \column{2.5in}
-
- \begin{block}{}
- \circled{1} Inclusive $\tau$ cross section: \newline $79.5\pm\unit{8.3}{\micro\barn}$. \\
- \circled{2} $8 \times 10^{10} \tau$ produced. \\
- \circled{3} Dominant contribution: \newline $\PDs\to\Ptau\Pnut$ ($78\%$) \\
- \circled{4} No tag possible. \\
- \end{block}
-
-
-
- \end{columns}
-
-
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- \begin{frame}
- \frametitle{Strategy}
- \begin{columns}
- \begin{column}{.5\textwidth}
- \begin{itemize}
- \item Loose cut based selection
- \item Classification in 3D space:
- \begin{itemize}
- \item invariant mass
- \item decay topology\newline (multivariate)
- \item particle identification\newline (multivariate)
- \end{itemize}
- \item Classifier trained on simulation
- \item Calibration with control channel
- \item Normalisation with $\PDs$
- \item CLs method to extract the result
- \end{itemize}
- \end{column}
- \begin{column}{.5\textwidth}
-
- \begin{block}{Signal \& Calibration \& Background channel}
- \includegraphics[width=.7\textwidth]{topos}
- \newline
- \includegraphics[width=.7\textwidth]{topob2.png}
- \end{block}
- \end{column}
- \end{columns}
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5
-
-
- \begin{frame}
- \frametitle{signal likelihoods}
- \begin{columns}\begin{column}{.48\textwidth}
- \begin{block}{particle identification}
- \begin{itemize}
- \item hits in muon chambers
- \item energy in calorimeters
- \begin{itemize}
- \item compatible with MIP
- \end{itemize}
- \item RICH response
- \end{itemize}
- \end{block}
- \begin{exampleblock}{Calibration}
- $\PJpsi\to\APmuon\Pmuon$
- \end{exampleblock}
- \includegraphics[width=.88\textwidth]{./Fig1b_pidbinning3}
- \end{column}
-
- \begin{column}{.48\textwidth}
-
- \begin{block}{3 body decay likelihood}
- \begin{itemize}
- \item vertex properties
- \begin{itemize}
- \item vertex fit, pointing
- \end{itemize}
- \item track quality
- \item isolation
- \end{itemize}
- \end{block}
- \begin{exampleblock}{Calibration}
- $\PDs\to\Pphi\Ppi$
- \end{exampleblock}
- \includegraphics[width=.88\textwidth]{./Fig1a_geobinning3}
- \end{column}
-
- \end{columns}
-
-
-
-
-
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-
- \begin{frame}
- \frametitle{Normalisation channel $\PDs^{+}\to\Pphi(\APmuon\Pmuon)\Ppiplus$}
- \begin{block}{Produced $\tau$ leptons}
- \vspace{-.3cm}
- \begin{align*}
- \mathcal{B}(\tau\to\mu\mu\mu)=\frac{\sigma(pp\to\PDs\to\Ptau)}{\sigma(pp\to\Ptau)} \frac{\mathcal{B}(\PDs\to\Pphi(\Pmu\Pmu)\Ppi)}{\mathcal{B}(\PDs\to\Ptau\Pnut)} \frac{\varepsilon_{norm}}{\varepsilon_{sig}}\frac{N_{\tau\to\mu\mu\mu}}{N_{\PDs\to\Pphi(\Pmu\Pmu)\Ppi}}
- \end{align*}
- \end{block}
- \begin{center}
- \includegraphics[scale=0.3]{pic/LHCb_logo.jpg}\hspace{.5em}
- \texttt{LHCb-CONF-2012-015}
-
- \includegraphics[scale=0.3]{./Fig3a_mDs}
-
- \end{center}
-
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
- \begin{frame}
- \frametitle{Invariant mass}
- \begin{columns}
- \begin{column}{.8\textwidth}
-
- \begin{itemize}
- \item background estimation in sidebands
- \item different signal likelihood inside signal region
- \end{itemize}
-
- \end{column}
-
-
- \end{columns}
- \begin{columns}
- \begin{column}{.65\textwidth}
- \includegraphics[width=\textwidth]{./masssim}
- \end{column}
- \begin{column}{.35\textwidth}
- \begin{itemize}
- \item mass resolution and mass scale calibrated on data
- \end{itemize}
- \end{column}
- \end{columns}
-
- \end{frame}
-
- \begin{frame}
- \frametitle{Signal likelihoods}
- \begin{columns}
- \begin{column}{.8\textwidth}
- \begin{block}{combined signal distribution}
- \begin{itemize}
- \item events distributed over 25 likelihood bins
- \item background estimate from mass sidebands
- \end{itemize}
- \end{block}
- \end{column}
- \begin{column}{.2\textwidth}
-
-
-
- \end{column}
-
- \end{columns}
- \begin{columns}
- \begin{column}{.65\textwidth}
- %\only<1>{\includegraphics[width=\textwidth]{./2d-data2.pdf}}
- \only{\includegraphics[width=\textwidth]{./2d-data2_both.pdf}}
- \end{column}
- \begin{column}{.35\textwidth}
- \begin{itemize}
- \item \textcolor{red}{11\,\% signal efficiency}
- \item \textcolor{blue}{21\,\% signal efficiency}
- \item for illustration:\newline high likelihood range shown
- \end{itemize}
- \end{column}
- \end{columns}
-
- \end{frame}
-
-
- \begin{frame}
- \frametitle{Observed events}
- \begin{columns}
- \begin{column}{.5\textwidth}
- %four best bins
-
- \includegraphics[width=.98\textwidth]{./Fig4a_1stbin3.pdf}
- \end{column}
- \begin{column}{.5\textwidth}
- %four best bins
-
- \includegraphics[width=.98\textwidth]{./Fig4b_2ndbin3.pdf}
- \end{column}
-
- \end{columns}
- \begin{columns}
- \begin{column}{.37\textwidth}
- 11\,\% of the signal
-
- 0.03\,\% of the background
- \end{column}
- \begin{column}{.13\textwidth}
- \includegraphics[width=\textwidth]{./2d-data2_1st}
- \end{column}
- \begin{column}{.37\textwidth}
- 21\,\% of the signal
-
- 0.14\,\% of the background
- \end{column}
- \begin{column}{.13\textwidth}
- \includegraphics[width=\textwidth]{./2d-data2_2nd}
- \end{column}
- \end{columns}
- %\end{column}
- %\begin{column}{.5\textwidth}
- %%next four best bins
- %\includegraphics[width=.98\textwidth]{./Fig4b_2ndbin.pdf}
- %\begin{columns}
- %\begin{column}{.9\textwidth}
- %21\,\% of the signal
- %
- %0.14\,\% of the background
- %\end{column}
- %\begin{column}{.1\textwidth}
- %\includegraphics[width=\textwidth]{./2d-data2_2nd}
- %\end{column}
- %\end{columns}
- %\end{column}
- %\end{columns}
-
- {~}
-
-
- \begin{columns}
- \begin{column}{.65\textwidth}
- \begin{description}
- \item[\textcolor{red}{red dashed}] combinatorial background
- \item[\textcolor{green}{green}] $\PDs^{+}\to\Peta(\Pmuon\APmuon\Pphoton)\APmuon\Pnum$
- \item[\textcolor{blue}{blue}] combined background
- \end{description}
- \end{column}
-
- \begin{column}{.35\textwidth}
- \includegraphics[width=.26\textwidth]{pic/LHCb_logo.jpg}
- \hspace{.5em}$\unit{1}{\reciprocal\femtobarn}$
-
- \texttt{LHCb-CONF-}\texttt{2012-015}
-
- \end{column}
- \end{columns}
- %no excess observed
-
- \end{frame}
-
- \begin{frame}
- \frametitle{Extracted limit}
- \begin{columns}\begin{column}{.8\textwidth}
-
- \vspace{1.0cm}
-
- \begin{tabular}{|l|l|l|}
- \hline
- & \text{observed} & \text{expected} \\
- \hline
- $\mathcal{B}(\Ptau\to\Pmu\Pmu\Pmu)$ <\ & $6.3\times 10 ^{-8}$ & $8.2\times 10^{-8}$ \\
- & $ 7.8\times 10 ^{-8}$ & $9.9\times 10^{-8}$ \\
- \hline
- \end{tabular}
-
-
-
- \end{column}
- \begin{column}{.2\textwidth}
- \includegraphics[width=.46\textwidth]{pic/LHCb_logo.jpg}
- \hspace{.5em}$\unit{1}{\reciprocal\femtobarn}$
-
- \texttt{LHCb-CONF-} \texttt{2012-015}
- \end{column}
- \end{columns}
- \begin{columns}
- \begin{column}{.65\textwidth}
- \includegraphics[width=\textwidth]{./Fig5_withbkg3.pdf}
- \end{column}
- \begin{column}{.04\textwidth}
-
- \end{column}
- \begin{column}{.35\textwidth}
-
-
- \end{column}
- \end{columns}
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- % tau2pmumu
-
-
- \subsection{$\Ptauon\to\APproton\Pmuon\APmuon$}
- \begin{frame}\frametitle{Curent status}
-
-
- \frametitle{LFV in $\Ptauon$ sector}%$\PBminus\to h^{+}\ell^{-}\ell^{-}$}
- \only<1>{
- \Large{$\Ptauon\to\APproton\Pmuon\APmuon$}
- }
- \only<2>{
- \begin{block}
-
- \circled{1} Search for baryon number violation processes so far unsuccessful, but must have occurred in the early universe \\
- \circled{2} Decay fall into $\vert B -L \vert =0$ category, which is predicted by many NP models.\\
- \circled{3} Similar decays $\Ptauon\to\PLambda\Plepton$, previous studied in $\mathcal{B}$ factories. \\
- \circled{4} Two possible decay and new physics modes: $\Ptauon\to\APproton\Pmuon\APmuon$, $\Ptauon\to\Pproton\Pmuon\APmuon$. \\
- \circled{5} Analysis adopted from $\Ptauon\to\Pmuon\Pmuon\APmuon$ \\
- \end{block}
- }
-
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
-
- \begin{frame}\frametitle{Curent status}
-
-
- \frametitle{Differences}%$\PBminus\to h^{+}\ell^{-}\ell^{-}$}
-
- \begin{columns}
- \column{3.0in}
- \begin{itemize}
- \item Use the same $\mathcal{M}_{3body}$ BDT as for $\Ptauon\to\Pmuon\Pmuon\APmuon$
- \item Insead of PID BDT use hard PID cut optimised on MC and Data.
- \item Worse normalization factor, due to hard PID cuts.
- \item Only combinatorical background expected.
- \end{itemize}
-
- \column{2in}
-
- \includegraphics[scale=0.2]{mass_bins}
- \newline \includegraphics[scale=0.2]{BDTbins_postPID_OS}
- \newline \includegraphics[scale=0.2]{BDTbins_postPID_SS}
- \end{columns}
-
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
-
-
- \begin{frame}\frametitle{Backorund Fits}
- \begin{center}
- \only<1>{
- \Large $\Ptauon\to\APproton\Pmuon\Pmuon$
- \newline
- \includegraphics[scale=0.22]{SS/geo0p4_0p7.png}
- \includegraphics[scale=0.22]{SS/geo0p7_1p1.png}
- }
- \only<2>{
-
- \Large $\Ptauon\to\Pproton\Pmuon\APmuon$
- \newline
- \includegraphics[scale=0.22]{OS/geo0p4_0p7.png}
- \includegraphics[scale=0.22]{OS/geo0p7_1p1.png}
-
- }
- \end{center}
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
- \begin{frame}\frametitle{Limits on \textcolor{green}{$\Ptauon\to\APproton\Pmuon\APmuon$} and \textcolor{red}{$\Ptauon\to\Pproton\Pmuon\Pmuon$}}
- \begin{center}
- \includegraphics[scale=0.22]{OS_banan_un}
- \includegraphics[scale=0.22]{SS_banan_un}
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
- \begin{tabular}{|l|l|l|}
- \hline
- CLs & \text{Observed} & \text{expected} \\
- \hline
- \hline
- $90\%$ & \textcolor{green}{$4.7 \times 10^{-7}$} \textcolor{red}{ $5.4 \times 10^{-7}$} & \textcolor{green}{$4.7 \times 10^{-7}$} \textcolor{red}{ $5.4 \times 10^{-7}$} \\
- \hline
- $95\%$ & \textcolor{green}{$5.9 \times 10^{-7}$} \textcolor{red}{ $6.9 \times 10^{-7}$} & \textcolor{green}{$4.5 \times 10^{-7}$} \textcolor{red}{ $6.0 \times 10^{-7}$} \\
- \hline
- \end{tabular}
-
-
- \end{center}
- \Large First time measured!!
-
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
-
- \begin{frame}\frametitle{Summary}
-
-
- {~}
- \begin{block}{}
- \circled{1} LNV, LFV and BNV still hides before us. \\
- \circled{2} First measurements on $\tau$ physics on hadron coliders.\\
- \circled{3} LHCb caughting up $\mathcal{B}$ factories. \\
- \circled{4} $\mathcal{B}(\tau \to \Pproton \mu \mu)$ first time measured.
-
-
- \end{block}
-
- \center Thank you for your attention.
-
-
- %\center \Large Thank you for attention.
- \textref{M.Chrz\k{a}szcz 2012}
- \end{frame}
-
-
-
- \end{document}