Mokka vs. LCDG4 Comparison

Guilherme, JeremySep.17, 2003

Data Samples

Single particle samples, 1000 evts each

• 10 GeV muons

• 50 Gev pions (flat in phi)

• 50 electrons (theta = 60°, phi = 90°)

Warning: different kinematics!!

Energy per ECal layer - pions

Energy per HCal layer - pions

Live energy per cell in ECal

Live energies per cell in Hcal

LCDG4: Eabs per cell in Ecal

LCDG4: Eabs in Ecal (log scale)

LCDG4: Eabs per cell in Hcal

Total live energy - pions

Total corrected energy - pions

Total live energy – electrons

Total corrected energy – electrons

Conclusions• Likely there are still some bugs in LCDG4

• Despite clear disagreements in EM showers between Mokka and LCDG4, they show better agreement among them than with Gismo

• None of them are not properly corrected using Gismo-based sampling fractions

• More investigations needed

Next steps• Repeat comparisons using projective LCDG4• Fair comparison: same versions of libraries, same cuts, same kinematics• Find/fix problem with fake peaks in absorber energies