Support analysis for the execute Summary of electron analysis

Reference pages.

• Execute Summary ; 0201 2012
• Support analysis for the Summary ; 0127 2012

E/p of V0 in Data

• There are entries E/p < 0.8 (minimum E/p cut in this analysis) in V0 sample in data
• Indicate there are some hadron contamination in the sample

V0 efficiency comparison between MC and Data

• Low pT ; Data efficiency is smaller than MC
• High pT ; Statistically limited but Data is smaller than MC

• Low pT ; Data & MC is consistent
• High pT ; Statistically limited but Data is smaller than MC

Summary

• There are hadron contamination in V0 sample in data.
• The discrepancy between MC and V0 (data) is the contribution.

-- ShingoSakai - 02-Feb-2012