emid in p13

1
emid in p13

• major changes for p13
• improved calorimeter simulation in MC noise
  contribution
• track reconstruction efficiency
• cps-reconstruction
• new determination of H-matrices
• new geometry dependent energy correction
• CPS-CAL matching
• emid tools in p13
• em candidate on TmbTree
• em-particle on Tmb

2
Data-MC comparison iso
Tuan Vu Anh
data
p11.13

• isolation
• standard cut isolt0.15
• comparison for Z-gtee
• increased noise (?3) broadens MC distribution
• clearly improved description in CC
• detailed studies of efficiencies and fake-rates
  to be done

MC
p13.03
3
Data-MC comparison emfr
Tuan Vu Anh
p11.13

• em-fraction
• standard cut emfrgt0.9
• monitor influence of noise at emfrgt1
• MC distribution broadened with increased noise
• improved description in CC

p13.03
4
H-matrix
Tuan Vu Anh

• H-matrix
• ?2-parameterization of shower shapes, hence
  depends on energy deposition in calorimeter
  layers
• ?2 needs to be recomputed consistently with
  improved MC version
• timescale 1 week

p11.13
p13.03
5
Track/CPS-calo matching
p11.12/13
Robert Zitoun

• track-calo match determined from ?2 taking into
  account ?z/r, ??, E/p
• efficiency down to 47 in p11.12/13, expected to
  improve significantly with tracking improvement
  in p13

• efficiency

• fake rate

Drew Alton

• cps-cal (cps-track) match determined from ?2
  taking into account ?z, ??
• p13 cps-reconstruction allows for the first
  time out-of-box use
• fix needed to increase number of cps clusters on
  Tmb

p11.11
6
Energy corrections
Sabine Crepe-Renaudin/ Anne-Marie Magnan

• energy corrections determined from MC
• taking into account energy losses in dead
  materials
• ? will be reduced once PS-energies can be used in
  em-clusters
• new determination of energy corrections with new
  MC timescale 2 weeks
• corrections for energy losses in ?-cracks under
  study

7
Absolute Energy Scale
Alexis Cothenet

• scale factors determined from Z ? ee in 6
  different calorimeter regions
• stable within errors for all p11 data
• determination for p13 not before January
• cross-check foreseen with W events (mT, E/P)
• work on low energy resonances (J/Psi, ?) under
  way

8
How to use p13 data?
raw data sample
d0reco p13.02.00
DST output
TMB output
reco_analyze p13.02.00
tmb_analyze p13.02.00
reco_analyze rtuple
TMB Tree

• detailed comparisons of TMB Tree output and
  reco-analyzed output gave essentially the same
  results (within TMB precision)
• em-candidate may work on reco_analyze output for
  p13, but is not guaranteed

9
TmbTree/em-analyze
Alexander Melnitchouk
EM-ANALYZE
TMB-TREE
10
Em-candidate/Em-particle
Volker Buescher

• Em-candidate (em-utile package) to be applied to
  TmbTree
• energy corrections geometric corrections
  scale
• alignment corrections
• track-/cps-match computation
• fiducial cuts
• Em-particle (em-reco package) to be used for
  framework/Tmb-analysis
• em candidate methods about to be provided within
  em-particle
• timescale with p13 certification