august 15, 2006vladlen timciuc, caltech cms group1 ecal h4 tb 2006 status report
TRANSCRIPT
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 1
ECAL H4 TB 2006
Status report
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 2
Overview
• Software framework
• Analysis and preliminary results
• To do list
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 3
Software framework
• CMSSW – CMSSW Tutorial
• http://caltechcms.wikispaces.com/space/showimage/20060428-CMSSWTutorial.ppt
– CMS Software Page • http://cmsdoc.cern.ch/cms/cpt/Software/html/Gene
ral/– In WebCVS subsection one can find complete overview
of software classes.
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 4
Software framework
• ECALTBH4_0_1_0 – is the official CMSSW release for H4 TB.– Description of release as well how to install it
can be found here:• https://twiki.cern.ch/twiki/bin/view/CMS/ECALTBH4
– Some ECALTBH4_0_1_0 tips: – https://twiki.cern.ch/twiki/bin/view/CMS/ECALTBH4Tips
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 5
Wikipage
• I created a small wikipage for ECAL H4 TB 2006.– http://caltechcms.wikispaces.com/– By far it contains the information mentioned in
previous slides.– I plan to make an eLog on this page.
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 6
Analysis and Preliminary Results
• I am working with simulated data.– Data simulated by Patrick Jarry for crystal # 1104.– Energies: 10, 20, 30, 50, 80, 120, 150, 180, 250 GeV. – Data contains 10k events per energy.– Hodoscope ±3 mm. (x-y).– Files can be found from your lxplus account at:
castor:/castor/cern.ch/user/j/jarry/Simulation_1104/
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 7
Analysis and Preliminary Results
• Reconstruction is done in ECALTBH4_0_1_0– Weight method is used for reconstruction of the
amplitude of the signal.
• Analysis:– Look for the crystal with the highest energy deposit.– Fit energy distribution for 5x5 crystals around that
crystal.• Double fit with Gauss, first to get approximate sigma and
mean, second fit within range +2sigma -1sigma from previous fit mean.
– Get energy resolution Sigma/Mean.– Do it for all listed energies.
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 8
Energy distribution
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 9
Energy distribution
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 10
Energy distribution
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 11
Energy distribution
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 12
Energy distribution
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 13
Pulse Shape
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 14
Pulse Shape
August 15, 2006 Vladlen Timciuc, Caltech CMS Group 15
To Do List
• Check the gain switch for reconstruction algorithm.
• Receive resolution curve and fit it.
• Perform the same for 3x3 and 1x1.
• Try to apply different energy resolution fit procedure.
• Try to reconstruct and analyze TB Data for SM22.
• Perform again resolution task with simulated data for another crystal with different hodoscope cuts.