LCFIVertex with Jupiter brief report

1
LCFIVertex with Jupiter- brief report -

• S. Uozumi
• Apr-9 2008 ACFA-sim-j meeting

2
c-tagging performance(full trackingPandoraLCFIV
ertex, very preliminary)
by Sonja, Z-pole
Z-pole
May 2007
GLD
LDC00Sc
Mar 2008
3
Flavor-tagging input variables
List of parameters used for the Flavor-tagging
D0significance of a jet Z0significance of a
jet Momentum of a jet JoingProbRphi
JointProbZ DecayLength DecayLengthSignificance PT
CorrectedMass RawMomentum NumTracksInVertices Seco
ndaryVertexProbability
GLD
LDC00Sc
4
Status Plans

• Still comparing input variables for flavor
  tagging between GLD and LDC.
• Problem with the Mokka data Ive generated?
• Will look at Sonjas data (only LDC01
  available).
• After getting reasonable conclusion with GLD and
  LDC00 (or LDC01), compare tagging performance
  with GLD, GLDprim, J4LDC.

5
Resulting purity vs efficiency at the
Z-peak (Sonja, May 2007)

• at high efficiency MARLIN(MOKKA) with
  Silicon-only track cheater gives better
• performance compared to LC-note result using
  tracking with pattern recognition