Changes between Version 7 and Version 8 of WorkBook/Tutorials/Mc4Bsm

Timestamp:

Jul 20, 2016, 6:25:16 AM (8 years ago)

Author:

Michele Selvaggi

Comment:

--

WorkBook/Tutorials/Mc4Bsm

@@ -117 +117 @@
 1. Open the card cards/delphes_card_CMS.tcl with your favorite editor and try to make sense of it. 2. 
 
-3. The present version of the card produces a Jet collection without computing and storing in the output substructure variable. Add a new collection of fat-jets called FatJet in the card. In order to do this you will need to first call the process in the ExecutionPath:
-{{{
-set ExecutionPath {
- ...
- FastJetFinder
- FatJetFinder
- ...  
-}
-}}}
-4. Then configure the FastJetFinder module by switching on the options for substructure:
+2. Then configure the FastJetFinder module by switching on the options for substructure:
+
 {{{
 ############
-# Fat Jet finder
+# Fast Jet finder
 ############
 
-module FastJetFinder FatJetFinder {
+module FastJetFinder FastJetFinder {
   set InputArray EFlowMerger/eflow
 
@@ -162 +154 @@
 }
 }}}
-5. Finally, write the fat-jet collection in your output tree by adding it to the !TreeWriter:
 
-{{{
-module TreeWriter TreeWriter {
-  ...
-  add Branch UniqueObjectFinder/jets Jet Jet
-  add Branch FatJetFinder/jets FatJet Jet
-  ...
-}
-}}}
-
-6. Now run Delphes with the newly modified card with jet substructure, on both the dijet and Z' samples:
+3. Now run Delphes with the newly modified card with jet substructure, on both the dijet and Z' samples:
 {{{
 ./DelphesSTDHEP cards/delphes_card_CMS.tcl out_pp_zp_ww_js.root pp_zp_ww.hep
@@ -179 +161 @@
 }}}
 
-7. Open the files with ROOT TBrowser as in the Getting Started section, and make sure that the new jet substructure variables are properly stored.  
+4. Open the files with ROOT TBrowser as in the Getting Started section, and make sure that the new jet substructure variables are properly stored.  
+
+5. Now run this simple event selection macro. It will plot two crucial jet observables that can help in discriminating between a w-jet and a light jet: the jet mass, and the N-subjettiness ratio tau2/tau1.