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Presentations / tau23mu_lhcb / 6_01_2014 / group_meeting.tex
@mchrzasz mchrzasz on 5 Feb 2014 12 KB update
  1. % This program can be redistributed and/or modified under the terms
  2. % of the GNU Public License, version 3.
  3. %
  4. % Seth Brown, Ph.D.
  5. % sethbrown@drbunsen.org
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  144. % see the macros.tex file for definitions
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  146.  
  147. % title slide definition
  148. \title{MVA selection for $\tau \to 3\mu$}
  149. %\subtitle{a bias report}
  150. \author{ Marcin Chrz\k{a}szcz$^{1,2}$}
  151. \institute[UTH, IFJ]
  152. {
  153. %\begin{tiny}
  154. $ ^1$ University of Zurich , $ ^2$ Institute of Nuclear Physics, Krakow,
  155. %\end{tiny}smallsmall
  156. }
  157.  
  158. \date{ \today}
  159.  
  160. %--------------------------------------------------------------------
  161. % Introduction
  162. %--------------------------------------------------------------------
  163.  
  164. \begin{document}
  165.  
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  192.  
  193. %--------------------------------------------------------------------
  194. % OUTLINE
  195. %--------------------------------------------------------------------
  196.  
  197.  
  198.  
  199.  
  200. \section[Outline]{}
  201. \begin{frame}
  202. \tableofcontents
  203. \end{frame}
  204.  
  205.  
  206. %-------------------------------------------------------------------
  207. % Introduction
  208. %-------------------------------------------------------------------
  209. %
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  211. % Insert infoline
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  215.  
  216. \title{Update on analysis}
  217.  
  218.  
  219. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  220. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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  225. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%2>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  226.  
  227. \section{Blending - THE END}
  228. \begin{frame}\frametitle{Where did we end last year}
  229. {~}\\
  230. \begin{itemize}
  231. \item We decided to use Blending technique with MatrixNet.
  232. \item Jon updated the mixing numbers $\rightarrow$ Need to retrain everything and hope things are status quo.
  233. \item People thanks to $\PBs \to \mu \mu$ will ask about mass correlation $\rightarrow$ Need to check to shut them up. Big big surprise.
  234. \end{itemize}
  235.  
  236.  
  237.  
  238. \textref {M.Chrz\k{a}szcz 2013}
  239.  
  240. \end{frame}
  241. \begin{frame}\frametitle{Status quo}
  242. {~}\\
  243. \begin{columns}
  244. \column{2in}
  245. \begin{itemize}
  246. \item I was to lazy to retrain all TMVA stuff.
  247. \item So just compared: GeoMVA(we have it for free), MN standalone, Blending.
  248. \item Again Blending wins.
  249. \end{itemize}
  250. \column{3in}
  251. \center \includegraphics[scale=0.28]{final2/ROC_2012.png}
  252.  
  253.  
  254. \end{columns}
  255.  
  256.  
  257. \textref {M.Chrz\k{a}szcz 2013}
  258. \end{frame}
  259.  
  260. \begin{frame}\frametitle{Status quo}
  261. {~}\\
  262. \begin{columns}
  263. \column{2in}
  264. \begin{itemize}
  265. \item I was to lazy to retrain all TMVA stuff.
  266. \item So just compared: GeoMVA(we have it for free), MN standalone, Blending.
  267. \item Again Blending wins. $\rightarrow$ I am happy.
  268. \end{itemize}
  269. \column{3in}
  270. \center \includegraphics[scale=0.28]{final2/ROC_2012.png}
  271.  
  272.  
  273. \end{columns}
  274.  
  275.  
  276. \textref {M.Chrz\k{a}szcz 2013}
  277. \end{frame}
  278.  
  279. \begin{frame}\frametitle{Status quo}
  280. {~}\\
  281. \begin{columns}
  282. \column{2in}
  283. \begin{itemize}
  284. \item For sanity check I also have looked into 2011 data.
  285. \item Result stays the same.
  286. \end{itemize}
  287. \column{3in}
  288. \center \includegraphics[scale=0.28]{final2/ROC_2011.png}
  289.  
  290.  
  291. \end{columns}
  292.  
  293.  
  294. \textref {M.Chrz\k{a}szcz 2013}
  295. \end{frame}
  296. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5
  297. \begin{frame}\frametitle{How does MN look like.}
  298. {~}\\
  299. \begin{columns}
  300. \column{2in}
  301. \begin{itemize}
  302. \item So MN is Gradient BDT. (name in the ntuple: MN\_BLEND)
  303. \item Applied transformation to make flat signal distribution. (name in the ntuple: MN\_BLEND\_FLAT).
  304. \end{itemize}
  305. \center \includegraphics[scale=0.19]{final2/bckmn.png}\\
  306.  
  307. \column{3in}
  308. \center \includegraphics[scale=0.2]{final2/MN.png}\\
  309. \center \includegraphics[scale=0.2]{final2/MN_FLAT.png}
  310.  
  311. \end{columns}
  312. \textref {M.Chrz\k{a}szcz 2013}
  313. \end{frame}
  314. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  315.  
  316.  
  317.  
  318.  
  319.  
  320.  
  321. \begin{frame}\frametitle{Mass correlation - Sit down, this is hardcore}
  322. {~}\\
  323. \begin{columns}
  324. \column{2in}
  325. \begin{itemize}
  326. \item So lets check the correlation for my blending using MN.
  327. \item Correlation is flat and arround $3.5\%$. Everything seems to be ok.
  328. \item Now the scary part. I checked this for GeoMVA.
  329. \end{itemize}
  330. \column{3in}
  331. \center \includegraphics[scale=0.28]{final2/corr_BLend.png}
  332.  
  333.  
  334. \end{columns}
  335.  
  336.  
  337. \textref {M.Chrz\k{a}szcz 2013}
  338. \end{frame}
  339.  
  340.  
  341.  
  342. \begin{frame}\frametitle{Mass correlation - Sit down, this is hardcore}
  343. {~}\\
  344. \begin{columns}
  345. \column{2in}
  346. \begin{itemize}
  347. \item I saw $30\%$ correlation in our previous GEOMVA!
  348. \item Before I got a heart attack I had thought: Making clarifies flat has to change the correlation value. So GeoMVA was transformed to be flat, for 1:1 comaprison.
  349. \item Never the less $15\%$ in GeoMVA remains ;(
  350. \end{itemize}
  351. \column{3in}
  352. \center \includegraphics[scale=0.28]{final2/corr_Geo.png}
  353.  
  354.  
  355. \end{columns}
  356.  
  357.  
  358. \textref {M.Chrz\k{a}szcz 2013}
  359. \end{frame}
  360.  
  361.  
  362.  
  363. \begin{frame}\frametitle{MVA conclusions}
  364. {~}\\
  365.  
  366. \begin{itemize}
  367. \item Blending is the best performing MVA.
  368. \item Mass correlation is reasonable low.
  369. \item GeoMVa mystery: Different RECO might have something to do with what we saw. It also could explain why GeoMVA is so efficient now(correlation might make the bck level artificially lower) $\leftarrow$ this idea was after midnight and 3 pines of beer so I might now change my mind.
  370. \end{itemize}
  371.  
  372. \textref {M.Chrz\k{a}szcz 2013}
  373. \end{frame}
  374.  
  375.  
  376. \section{Binning optimisation}
  377.  
  378. \begin{frame}\frametitle{Binning}
  379. {~}\\
  380.  
  381. \begin{itemize}
  382. \item Performed binning optimisation(with old trigger strategy and old classifier(before Jons updates)).
  383. \item All this will be updated of coz with Pauls new results + new clarifies.
  384. \item For 2012 for binning with eta veto:\\
  385. PID: 0 0.10 0.42 0.75 0.81 0.86 1.00\\
  386. BLEND\_FLAT: 0. 0.05 0.38 0.63 0.71 0.82 1.00
  387. \end{itemize}
  388.  
  389. \center \includegraphics[scale=0.2]{final2/cl1.png}
  390.  
  391.  
  392. \textref {M.Chrz\k{a}szcz 2013}
  393. \end{frame}
  394.  
  395.  
  396. \begin{frame}\frametitle{Binning - details}
  397. {~}\\
  398.  
  399. \begin{itemize}
  400. \item Binning uses CLs method, not enough time to play with other FOM.
  401. \item Optimisation requires at least 8 events in the bin.
  402. \item Minimum bin size is 0.06.
  403. \item The sieve is 0.01
  404.  
  405. \end{itemize}
  406.  
  407. \center \includegraphics[scale=0.2]{final2/cl1.png}
  408.  
  409.  
  410. \textref {M.Chrz\k{a}szcz 2013}
  411. \end{frame}
  412.  
  413.  
  414. \section{$\eta$ background}
  415. \begin{frame}\frametitle{Binning - details}
  416. {~}\\
  417.  
  418. \begin{itemize}
  419. \item Did all the fits to $\eta$ bck.
  420. \item Fits are far more stable then last year.
  421. \item Will try to make a single fit to all bins to reduce the systematics.
  422. \item All fits are here: \href{http://nz17-p1.ifj.edu.pl/work_public/LHCb/Tau23Mu/Eta_fits/}{LINK}
  423. \item I was lazy and didn't want to latex thing that will change...
  424. \item The same with fits with $\eta$ veto....
  425. \item MC/Data comparison doing Splot: \href{http://nz17-p1.ifj.edu.pl/work_public/LHCb/Tau23Mu/MCDATA/}{LINK}
  426.  
  427. \end{itemize}
  428. \textref {M.Chrz\k{a}szcz 2013}
  429. \end{frame}
  430.  
  431.  
  432. \section{Plan}
  433. \begin{frame}\frametitle{The Plan}
  434. {~}\\
  435.  
  436. \begin{enumerate}
  437. \item If we want to move with this for Moriond we would need to have a limit soon.
  438. \item I would propose the attemnt to have on next week a preliminary limit.
  439. \item What we need:
  440.  
  441. \end{enumerate}
  442. \begin{itemize}
  443. \item $\PDs \to \phi \pi$. Done for 2011 and 2012. Will appear today on my page.
  444. \item New binning: 6 hours of computing one scenario$\rightarrow$ tmr will have it.
  445. \item Fits(with $\eta$ veto: Wed).
  446. \item Calibration: Paul?
  447. \item Limit(lets aim 2011+2012). I have script from Diego with the combination for $\PBs \to \mu\mu$.
  448. \item But it is never easy to run those things(2-3 days).
  449. \item Lets try to make an effort?
  450. \end{itemize}
  451.  
  452. \textref {M.Chrz\k{a}szcz 2013}
  453. \end{frame}
  454. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  455.  
  456.  
  457.  
  458.  
  459. \end{document}