# Changes between Version 1 and Version 2 of CernSummerSchool08

Ignore:
Timestamp:
04/06/12 16:33:02 (7 years ago)
Comment:

--

Unmodified
Added
Removed
Modified
• ## CernSummerSchool08

 v1 Choose a channel and investigate signal and background: 1. The 4 lepton final state: %$pp \to H\to Z Z \to e^+e^- \mu^+ \mu^-$% 1. The 4 lepton final state: $pp \to H\to Z Z \to e^+e^- \mu^+ \mu^-$ * Signal Plots: [http://madgraph.hep.uiuc.edu/MadGraphData//tstelzer@uiuc.edu/PROC70/Events/run_02_plots.html Parton Level] [attachment:h4l-sig2.pdf Detector Level] * Background Plots: [http://madgraph.hep.uiuc.edu/MadGraphData/tstelzer@uiuc.edu/PROC73/Events/run_01_plots.html Parton Level] [attachment:h4l-lhco.pdf Detector Level] 1. Top associated production %$pp \to t\bar tH$% with %$H \to b \bar b$% 1. Top associated production $pp \to t\bar tH$ with $H \to b \bar b$ *  Signal + Background  Plots: [attachment:ttbb-lhe.pdf Parton Level] [attachment:ttbb-lhco.pdf Detector Level] Useful extra information: * In the plots %$H_T=\sum ||p_T^{vis}|| + E_T^{miss}$%. * In the plots $H_T=\sum ||p_T^{vis}|| + E_T^{miss}$. * A SM-like  Z' would decay (more or less democratically) into: jet jet (uu~,cc~,dd~,ss~,bb~), t tbar (tt~), lept+lept- (e+e-,mu+mu-,ta+ta-), neutrino anti-neutrino (ve ve~,vm vm~,vt vt~). It could also have couplings to SM W and Z, and in that case would decay in to ZZ and W+W-. * An Higgs couple to particles with a strength which is proportional to the particle masses. A SM-like  heavy H would decay in to t tbar (tt~), W+W-, ZZ.