Reconstruction Plans

1
Reconstruction Plans

• S. Margetis
• Kent State University

2
Goals

• Maximize efficiency-take material effects into
  account
• Increase modularity/replace-ability
• Define upgrade path - identify the various
  elements
• Use GEANE/Kalman filtering techniques
• Move F-gtC - Move StEvent upstream (how much?)
• StEvent at least replace table-based DSTs
• User is always accessing data via StEvent

3
Short term

• We do not want to touch the guts of the tracker
• No justified need for it - tracker complies with
  general requirements
• Maintenance/Fixes are important (Iwonas primary
  task these days)
• We should start thinking about a possible upgrade
• Format/Responsibilities need to be defined
• Integrate TRS and embedding chain into
  bfc/production
• Continue calibrations/database work
• Extend Kalman to primary track fitting
• needs to be resolved/tested/implemented in the
  next 2-3 months
• (Al, Yuri, Spiros, Helen and probably a guest)

4
Short term (cont.)

• Upgrade vertex fitter (medium priority - 6
  months)
• usage of proper propagation routines
• move to C/possible merging with lmv
• (Lanny, Ben, Joakim, Spiros, Lee)
• Optimize year-2 global tracking and assess its
  performance (medium priority - 6 months)
• Test/define best sequences for SVT, SVTSSD
• Identify possible upgrades/new algorithms
• (Helen, Lilian, Lanny, Lee, Spiros plus help)

5
Short term (cont.)

• Evaluate tools (medium priority - 6 months)
• GEANE evaluation and upgrading
• (Yuri, Lee plus some help plus geometry support)
• Kalman filtering (understand, choose
  flavor/language)
• This is closely connected to tracking upgrade
  effort and it also has longer term components in
  it
• Collaboration with community a must
• (Al, Yuri, Spiros plus big help from
  inside/outside)

6
Longer term (wish list)

• Develop a new modular TPC tracker based on Kalman
• needs RD group
• Global tracking using only propagator/Kalman
  tools
• TPC track to SVT point (Lilian et al plus local
  help)
• TPC track to SVT track (???)
• pre-analysis code
• Depending on outcome of assessment tests possible
  need for improved algorithms.

7
Summary

• There is need for new tools but also need to
  develop inside expertise
• Collaboration with outside experts is a must.
  Resources to do this need to be provided
• There is room and need for about 3 full time
  software people for 1-1.5 years (not FTEs). The
  level should be very good Ph.D. student or better
• People should participate in decision making
  processes