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Test on MC rad04

Test on MC rad04. “Calorimeter” calibration. (II) Evaluation of background.  with final state  +  - . I. NRUN [26707 – 26813] (2002) We require: The cuts used for Dalitz plot  +  -  0 analysis. Track to cluster association … and we look the cluster of bkg:

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Test on MC rad04

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  1. Test on MC rad04 • “Calorimeter” calibration. • (II) Evaluation of background.

  2.  with final state +-. I

  3. NRUN [26707 – 26813] (2002) • We require: • The cuts used for Dalitz plot +-0 analysis. • Track to cluster association • … and we look the cluster of bkg: • No associated to + track && no associated to - track && no radiative photon && no photons from 0 decay. • The minimum distance between the cluster and cluster (bkg) > 50 cm. (II) Selection procedure

  4. NCLU_BKG

  5. Tcl_bkg && Ecl_bkg

  6. θcl_bkg

  7. Conclusions • EMC miscalibration of 1% for E > 50 MeV • and up to 3 – 4 % for lower energy. • Resolution  OK. • RMS of time and position along the fiber can be improved. • (II) MC_rad04 reproduces correctly the distribution of T and E but there is a problem with cluster multiplicity and θ distribution.

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