K.Hoshina and K.Fujii

1
Time Stamping

• K.Hoshina and K.Fujii

2
Helix Fit with T0 as a Parameter

• Chi2 Distribution (axial only)

3
T0 Distributions

• T0 from Helix Fit (axial only)

4
Helix Fit with T0 as a Parameter

• Chi2 Distribution (axialstereo)

5
T0 Distributions

• T0 from Helix Fit (axialstereo)

6
Summary Conclusions

• We can determine T0 on a track by track basis
  with a time resolution of 2(3)ns for axial only
  (axialstereo) geometry!
• This means we can clearly separate BG tracks that
  are 6(9) bunches away!
• Further Studies Needed
• Performance for low momentum tracks