Minutes of the Computing meeting held on 10November 1999

Present: G.Corti, G.Gracia, J.Harvey, D.Liko, N.Neufeld, A.Valassi, M.Cattaneo,  I.Korolko,
              M.Needham, R.Forti, D.Websdale, F.Harris, P.Mato, T.Cass, M.Frank, F.Ranjard

Minutes : Florence Ranjard

      1. OO Implementation of LHCb RICH Software (D.Liko) (ppt)

  Dietrich  has presented the program, N.Neufeld and himself have developped to implement the RICH software in C++.

• In the first step the pattern recognition fortran program written by R.Forti & al has been implemented in C++:
  • The C++ program is standalone as well as the  Fortran program, The algorithm is the same in both programs.
  • First comparison between both programs  on 100 events B -> pi pi gives a good agreement in physics results, but the C++ code seems to take more cpu time and memory (Linux Redhat 5.1)
• The next step will be to integrate the code into the Gaudi framework: main problem will be to adapt the "smart track" concept to Gaudi. It will request some review of the design.
• In the Future:
  • migrate simulation of the photon detector response (done currently in SICB by G.Wilkinson)
  • interface the OO pattern recognition with the photon track reconstruction.
  • add in the OO pattern recognition all the improvements added in SICB by G.Wilkinson.
• The Future is still in discussion in the RICH group.

===============================================================

next meeting : 8 December 1999 at 9:00 room B