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---+ Monte Carlo Validation ---++ Goal To write a package to do streamline Monte Carlo Validation. Action items: * Things to check for top: * W(qq) inv mass * W(lnu) inv mass distinguishing the three possible flavors * top (qqq) inv mass * top (qlnu) inv mass * dN/dn_genjet * 1st and 2nd associated jet pT and eta * branching ratio of ttbar decays (had vs semilep) vs ttbar * Things to check for Z and W * All similar, except the top mass of course. ---++ Users * ThiagoTomei * FlaviaDias * [[MarcoAndreFerreiraDias][MarcoDias]] ---++ Procedures ---+++ Test files [[http://d0server.hep.ift.unesp.br/~trtomei/tt1j.root][ttbar+1j]] ---+++ CVS The code is structured as an EDAnalyzer, located at the SPRACE CVS repository. * Set up CVS: =export CVSROOT=/hdacs/shared/cvsrepository= * Check out the code - make sure to be inside a directory =CMSSW_X_Y_Z/src/SomeAnalyzer= beforehand! =cvs co !ValidationAnalyzer= * Check in the code after making changes. =cd CMSSW_X_Y_Z/src/SomeAnalyzer= =cvs ci !ValidationAnalyzer= ---+++ Links * http://lcgapp.cern.ch/project/simu/HepMC/HepMC20110/html/classHepMC_1_1GenEvent.html * http://lcgapp.cern.ch/project/simu/HepMC/HepMC20110/html/classHepMC_1_1GenParticle.html * http://lcgapp.cern.ch/project/simu/HepMC/HepMC20110/html/classHepMC_1_1GenVertex.html ---+++ Log da Flavia * To reconstruct t and tbar, I located the vertice that have a t (tbar) ingoing, and took the outgoing particles of the vertices. However, some of these top vertices got also other particles than the W and b: uubar, gluon. I've (under Thiago advice) just ignored it and tried to reconstruct the top mass with just W's and b's. *Solved: status 2 particles.* * Status stuff - status 2 particles for showering. * To compile with TFileService, take care to put the lines in the BuildFile in the right place (lines above, not below). * Successfully reconstructed invariant mass of the W's from hadronic and leptonic decays. * Successfully reconstructed invariant mass of t and tbar from hadronic and leptonic decays. -- Main.ThiagoTomei - 27 Jan 2009 -- Main.FlaviaDias - 28 Jan 2009
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Topic revision: r5 - 2009-01-28
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FlaviaDias
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