LPC Computing

Step 6: Running the Muon Root Maker

First let's build the Tutorial executable that analysis the  DST's and creates a Root Tree:

cd $TOP

if you haven't created the ORCA release area yet do it now:

source /afs/fnal.gov/files/code/cms/setup/cshrc fnal
cmscvsroot ORCA
scram project ORCA ORCA_8_1_1

Now get the tutorial example:

cd ORCA_8_1_1/src
mv ../../Workspace .
cd Workspace/
scram b
scram b bin

eval `scram runtime -csh`
rehash

First we will just run on the provided data samples. The following will run on the Z' sample
(Z' of 700 GeV mass that is forced to decay into 2 muons)

Tutorial -c orcarc_save
mv muon.root $ANALYSIS/muon_zpmumu.root

Let's go to the analysis area to have a look at the Root Tree.

cd $ANALYSIS
cp muon_zpmumu.root muon.root

root
root [0] .L T1.C
root [1] T1 *t = new T1();
root [2] t->Loop()
root [3] hmass->Draw();

should produce the plot below which actually looks like a Z'. Now you can take your first shot at analyzing the data like estimating acceptance, reconstruction efficiency etc.

now for the h330-> eemm sample:

cd -
Tutorial -c orcarc
mv muon.root $ANALYSIS/muon_h300eemm.root
cd $ANALYSIS
cp muon_h300eemm.root muon.root
root
root [0] .L T1.C
root [1] T1 *t = new T1();
root [2] t->Loop()
root [3] hmass->Draw();

1. General setup
2. Available data sets in DST format
3. Event generation on the farm with CMKIN (Pythia), Analysis of the generator level output.
4. Simulate the events with OSCAR.
5. Digitize with ORCA and produce DST's
6. Run a muon ROOT Tree maker looking at the DST and make some simple plots