Version 0.97

Changes

Event Structure

• Track now has new methods for fitted tracks, and for getting raw track parameters and error matrix elements

Track Reconstruction

• Track fitting has now been implemented by Nic Sinev, and is turned on by default.
• Some changes to default track finding parameters from small detector to improve efficiency

FastMc

• FastMC now fills diagonal elements into error matrix
• FastMC now parameterizes tracks in terms of tanLambda rather than lambda

JrbClustering

• Several bugs fixed, plus improved documentation (and more coming soon)

Fixed Bugs

• Bug in FastMC track origin smearing fixed (thanks to Bruce Schumm for finding this bug).
• Bug in EventShape routine fixed by Gary (details??)
• Helical swimmer fixed to use B field properly
• Added Constructionors to AddReconTrks for case where no Vertex detector is available
• Thresholds for SimpleClusterBuilder changed to double from int (thanks to David Wagner for finding this bug).
• Hit Smearing package now correctly sets parameters for small and large detector.

Version 0.96

Non-Backwards compatible changes:

• in class hep.lcd.event.Track getMomentumX -> getPX etc. for compatibility with MCParticle
  • getMomentumX etc. is still available for backwards compatibility for the time being
• in class hep.lcd.event.Cluster the return type of getClusterStartDepth is now double (was int)

Other Changes

• hep.lcd.util.driver.Driver now implements Processor to allow Drivers to drive other Drivers
• Track now implements 3 vector, to allow it to be passed to the JetFinder
• Improvements to tracking from Nic Sinev
  • Tracking now takes geometry from detector geometry
  • Tracking now works for small & large detectors
  • Workaround for VTX layer bug
• New hit smearing package hep.lcd.mc.smear, written by Nic Sinev
• JRB cluster builder now compiles (& works?)
• More fixes to tracking from Mike Ronan
• Possible to get magnetic field, coil geometry and materials from detector info
• New hep.lcd.contrib package for example analysis software. First items from Mike Ronan include:
  • hep.lcd.contrib.recon.tracking.analysis - Sample tracking analysis
  • hep.lcd.contrib.mc.analysis - Some useful routines for classifing MC events

Changes Promised but not actually ready in time

• Cluster now implements 3 vector, to allow it to be passed to the JetFinder
• New Function for concatenating lcd files

Fixed Bugs

• Bug in boost routine fixed
• Cluster theta was being calculated incorrectly

Known Bugs

• Masses returned by MCParticle.getMass are in MeV not GeV
• Smearing/Calorimetry not correctly changing geometry!
• BinaryReader isnt working.
• Event Display doesn't work properly under Windows 95/98