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Documentation of Appmodule QaBetaTools/QaJpsiK0s

$Id: QaJpsiK0s.html,v 1.2 1998/05/31 00:59:36 dyaeb Exp $

Benchmark

  • run 040510 (MDC1) -- 2k J/psi->l+l- K0s->pi+pi- B->X events

Input

  • two BtaCandidate lists from the event, "btaChargedList" and "btaLundCandidateList"
  • the defaults for the parameters are set to "ChargedTracks" and "MCTruth", so no particle ID is used

Method

  • use BtaVFinder with vertex fitting to make lists of K0s and psi(->mu+mu- only) candidates
  • combine these lists assigning the K0s and J/psi mass using BtaVFinder without vertex fitting to make a list of B0 candidates
  • make histograms of K0s, psi and B0 combinations using the BtaCutEngine and BtaSignalChecker classes
  • truth is judged according to the "Default" BtaMcAssoc list

Output

  • QaJpsiK0s_plot_RELEASE_040430.ps
  • Mass resolutions from Paw fits shown on the above plots
  • Statistics from BtaCutEngine


Maintained by Dave Aston.

Please send corrections, additions and (polite) suggestions to:

dyaeb@SLAC.Stanford.Edu (650)926-2457