Talks

• p_t dependent errors for track impact parameters: Per Jonsson
  
  • Error currently implemented depends only on number of SMT hits associated to a track.
  • Need p_t dependent contribution to track errors to account for multiple scattering. This is particularly important for low p_t tracks (needed for b-tagging, vertexing).
  • Currently 45 micron p_t independent term added to impact parameter error. This accounts in part for the beam size, but also for misalignment?
  • Daniel and Per will implement this into the global tracking tool for p15.
• L3MEt studies: Lee Sawyer
  Switching Nada on causes strange behaviour in the L3MEt tool. The resolution degrades and the scalar Et sum increases! Lee will investigate and will report at next week's meeting.

Scribe: Terry Wyatt.