Background/pileup scripts

This information and these scripts are courtesy of Andrew Iyengar (garfish@owlnet.rice.edu).

Add necessary geometry files

To add pileup hits from the background files available at Fermilab and elsewhere, you have to read in the corresponding description file. You specify this file in the datacard DETI in batch jobs. If you don't have them already, copy

geom_ini.rz
geom_calo_za.rz
geom_muon_tdr.rz 
into
$CMS_PATH/cms/cmsim/v112/cmdb/rz/
and
cms_prod_za_QCD_05_50000_pt3.fz
cms_pro_2_50000.fz 
into
$CMS_PATH/cms/cmsim/v112/cmdb/fz/.

These files can be found at UCDavis. Once you have things up and running, there are a whole bunch of background and geometry files at FNAL. Be careful; sometimes ftp corrupts geometry and background files. I found that I could "mget" the files from Rice, but to use "mput" from UCDavis would corrupt the files.

Run some single-muon events

Here are 4 batch job scripts. Copy them into the same directory as cmsv112b.exe.

runphys - propogates single muons through the endcap
runpile - adds pileup events (15 before, 9 after bx) to runphys data
runjunk - adds the neutron background to runphys data
runj2jp - adds the neutron background to runjunk data

You should try running them in the above order. To add pileup you must have geom_calo_za.rz and cms_prod_za_QCD_05_50000_pt3.fz . The scripts take three arguments:
<run#> <#events> <muon trans. momentum>.
By running runpile with the same 3 arguments as you ran runphys, you will add pileup hits to the data generated by runphys.

last updated 17 February 1998 by Benn Tannenbaum (benn@physics.ucla.edu)