main.tex 5.6 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160
  1. \documentclass[english,aspectratio=169]{beamer}
  2. % \usepackage{fontspec}
  3. \usepackage{graphicx}
  4. \usepackage{amssymb}
  5. \usepackage{booktabs}
  6. \usepackage{siunitx}
  7. % \setmainfont[Mapping=tex-text]{DejaVu Serif}
  8. % \setsansfont[Mapping=tex-text]{DejaVu Sans}
  9. % \setmonofont{DejaVu Sans Mono}
  10. \newcommand{\fb}{\si{\femto\barn}}
  11. \newcommand{\invfb}{\si{\per\femto\barn}}
  12. \usetheme[]{bjeldbak}
  13. \begin{document}
  14. \title[4t X-Section]{Four Tops Cross Section Measurement}
  15. \subtitle{Trilepton Channel}
  16. \author[C. Fangmeier]{Caleb Fangmeier}
  17. \institute[UNL]{University of Nebraska \-- Lincoln}
  18. \date{\today}
  19. \titlegraphic{%
  20. \begin{figure}
  21. \includegraphics[width=1in]{CMSlogo}\hspace{0.75in}\includegraphics[width=1in]{nebraska-n}
  22. \end{figure}
  23. }
  24. \begin{frame}[plain]
  25. \titlepage%
  26. \end{frame}
  27. % \begin{frame}
  28. \section{Introduction}
  29. \begin{frame}{Production}
  30. \begin{minipage}[c][\textheight]{0.45\textwidth}
  31. \begin{itemize}
  32. \item 4-top production can proceed through either
  33. \begin{itemize}
  34. \item<2,5-> $\mathcal{O}(\alpha_S^4)$ QCD Process
  35. \item<3,5-> $\mathcal{O}(\alpha_S^2 y_t^2)$ Higgs Exchange
  36. \item<4,5-> $\mathcal{O}(\alpha_S^2\alpha^2)$ Electroweak Process
  37. \end{itemize}
  38. \item<5-> Higgs Exchange + EW gives $\approx10\%$ contribution to total cross-section.
  39. \end{itemize}
  40. \end{minipage}
  41. \begin{minipage}[c][\textheight]{0.45\textwidth}
  42. \centering
  43. \only<2>{%
  44. \includegraphics[width=\textwidth]{figures/production-qcd.png}
  45. }
  46. \only<3>{%
  47. \includegraphics[width=\textwidth]{figures/production-higgs.png}
  48. }
  49. \only<4>{%
  50. \includegraphics[width=\textwidth]{figures/production-ew.png}
  51. }
  52. \only<5>{%
  53. Standard Model cross-section at $\sqrt{s}=13\mathrm{TeV}$:
  54. \begin{center}
  55. \Huge{12.32\fb}
  56. \end{center}
  57. }
  58. \only<6->{%
  59. Standard Model cross-section at $\sqrt{s}=13\mathrm{TeV}$:
  60. \vspace{-.15in}
  61. \begin{center}
  62. \Large{12.32\fb}
  63. \end{center}
  64. \includegraphics[width=\textwidth]{figures/lhc-luminosity-2016.png}
  65. % IMGSRC: https://home.cern/cern-people/updates/2016/12/lhc-report-far-beyond-expectations
  66. \vspace{-.15in}
  67. \begin{equation*}
  68. \mathrm{\#\ Signal\ Events}=12.32\fb * 40\invfb \approx 493
  69. \end{equation*}
  70. }
  71. \end{minipage}
  72. \end{frame}
  73. \begin{frame}{Decay Channels}
  74. \begin{minipage}[c][\textheight]{0.45\textwidth}
  75. \begin{itemize}
  76. %TODO: Check the limits on non-bW decays
  77. \item<1-> All* tops will immediately decay to a b-quark and a W-boson
  78. \item<2-> The W-boson will immediately decay either
  79. \begin{itemize}
  80. \item<2,4-> \textbf{Leptonically}
  81. \item<3-> \textbf{Hadronically}
  82. \end{itemize}
  83. \item<4-> The b-quark will form some b hadron, travel some macroscopic distance, and then hadronize into a jet.
  84. \end{itemize}
  85. \end{minipage}
  86. \begin{minipage}[c][\textheight]{0.54\textwidth}
  87. \centering
  88. \only<1>{%
  89. \includegraphics[width=\textwidth]{figures/feynman-diagrams/T->b,W.png}
  90. }
  91. \only<2>{%
  92. \includegraphics[width=\textwidth]{figures/feynman-diagrams/T->b,(W->ln).png}
  93. }
  94. \only<3>{%
  95. \includegraphics[width=\textwidth]{figures/feynman-diagrams/T->b,(W->qq).png}
  96. }
  97. \only<4>{%
  98. \includegraphics[width=0.90\textwidth]{figures/b-tagging.png}
  99. }
  100. \end{minipage}
  101. \end{frame}
  102. \begin{frame}{Decay Channels}
  103. The Decay channels are enumerated based on the types of W-decays
  104. \begin{table}[]
  105. \tiny
  106. \begin{tabular}{@{}llccrrc@{}}
  107. \textbf{Name} & \textbf{Leptons} & \textbf{B-Jets} & \textbf{LF-Jets} & \textbf{BR} & \textbf{BR ($\mu$ and $e$ only)} & \textbf{Events @ 40\invfb} \\ \midrule
  108. Hadronic & & 4 & 8 & 20\% & 20\% & 99 \\ \midrule
  109. Single Lepton & $\ell^\pm$ & 4 & 6 & 40\% & 26.6\% & 131 \\ \midrule
  110. Same-Sign (SS) Dilepton & $\ell^\pm \ell^\pm$ & 4 & 4 & 9.7\% & 4.3\% & 21 \\ \midrule
  111. Opposite-Sign (OS) Dilepton & $\ell^\pm \ell^\mp$ & 4 & 4 & 19.3\% & 8.6\% & 42 \\ \midrule
  112. Trilepton & $\ell^\pm\ell^\pm\ell^\mp$ & 4 & 2 & 9.8\% & 2.9\% & 14 \\ \midrule
  113. Leptonic & $\ell^+\ell^+\ell^-\ell^-$ & 4 & 2 & 1.2\% & 0.24\% & 1 \\ \bottomrule
  114. \end{tabular}
  115. \end{table}
  116. \vfill
  117. \footnotesize{$\ell \in \left(e,\mu,\tau\right)$}
  118. \end{frame}
  119. \section{Previous Measurements}
  120. \begin{frame}{Previous CMS Measurements @ 13TeV}
  121. \begin{table}[]
  122. \begin{tabular}{@{}lcr@{}}
  123. \textbf{Analysis} & \textbf{Channel} & \textbf{Limit} \\ \midrule
  124. CMS-TOP-16-016 & Single Lepton, OS Dilepton & 94\fb \\ \midrule
  125. CMS-SUS-15-008 & SS Dilepton & 119\fb \\ \bottomrule
  126. \textbf{Combined} & & 69\fb \\
  127. \end{tabular}
  128. \end{table}
  129. \end{frame}
  130. \section{Strategy}
  131. \begin{frame}{Strategy}
  132. \end{frame}
  133. \section{Progress \& Status}
  134. \begin{frame}{Progress \& Status}
  135. \end{frame}
  136. \section{Conclusions}
  137. \begin{frame}{Conclusions}
  138. \end{frame}
  139. \end{document}