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More on pi0 reconstuction in the NCC

More on pi0 reconstuction in the NCC. R. Seto. Minimum cuts. ephot>0.5 eff=5482/10000=55%. Energy resolution. 22% for E<5. E<5. 31% for higher E. higher energy. pi0 sample E<5 GeV. require asym<0.5 ephot>0.5 can get to 2.5 cm separation. real photon separation. Mass.

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More on pi0 reconstuction in the NCC

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  1. More on pi0 reconstuction in the NCC R. Seto

  2. Minimum cuts • ephot>0.5 • eff=5482/10000=55%

  3. Energy resolution 22% for E<5 E<5 31% for higher E higher energy

  4. pi0 sample E<5 GeV • require asym<0.5 ephot>0.5 • can get to 2.5 cm separation real photon separation Mass

  5. pi0 resolution E<5 GeV input to pisa smear mass input to pisa final mass recon but use real angles final mass recon

  6. position resolution (no gamma/pi0)

  7. higher energy etasample 5-20 GeV

  8. higher energy sample 5-20 GeV

  9. higher energy sample 5-20 GeV

  10. higher energy sample 5-20 GeV case where we get it wrong

  11. higher energy sample 5-20 GeV

  12. Now add other particles • Primary sample pi0: 1-5 GeV • add charged pi’s 1-5 GeV add 4 pi pi0 only add 1 pi add 2 pi

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