Difference: WJetsAnalysis (8 vs. 9)

Revision 92007-11-17 - ThiagoTomei

Line: 1 to 1
 
META TOPICPARENT name="ThiagoTomei"

W + Jets Analysis

Line: 24 to 24
 
  • Issue the scramv1 b -r command to compile the EDAnalyzer - it should compile fine. If it does not, you probably misplaced the BuildFile. Correct the mistake and issue the command again. The -r option tells the scramv1 b command to reread all files - if the BuildFile has not changed, it is usually safe to skip that option.
Changed:
<
<
  • The files alpgenw0j_official.root, alpgenw1j_official.root, etc. are, in fact, symbolic links to files which contain a fraction of the events produced by the ALPGEN matrix-element generator with those parton multiplicities (w+1 parton, w+2 partons, etc.). Those events are subject to parton showering and hadronization by PYTHIA, full event simulation by GEANT4, digitization and reconstruction. In this tutorial, we are going to work with the very first link in that chain - the partons produced after the hard interaction. See to where those links are pointing, an make corresponding links (same names!) in the VnjetAnalyzer directory.
>
>
  • The files alpgenw0j_official.root, alpgenw1j_official.root, etc. are, in fact, symbolic links to files which contain a fraction of the events produced by the ALPGEN matrix-element generator with those parton multiplicities (w+1 parton, w+2 partons, etc.). Those events are subject to parton showering and hadronization by PYTHIA, full event simulation by GEANT4, digitization and reconstruction. In this tutorial, we are going to work with the very first link in that chain - the partons produced after the hard interaction. See to where those links are pointing, and make corresponding links (same names!) in the VnjetAnalyzer directory.
 
  • Copy the Configuration Files w0.cfg, w1.cfg to the VnjetAnalyzer directory. These Configuration Files accomplish the following tasks: scan through each Event in the source, select all partons, create parton-level jets ("clusters") with a given cone radius (default is 0.5), cut on the pt of the jets (default is 20 GeV), and produce a series of histograms. Let's focus our attention in two particular histograms: "totalJets", with the number of jets per Event, and "pt_tJets" with the cumulative pt distribution of jets for all Events. Each .cfg is linked to one parton multiplicity, and produces a ROOT file named wnj_ic_pt20_R05.root, with n the same as in the .cfg file.
 
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2020 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback

antalya escort bursa escort eskisehir escort istanbul escort izmir escort