The current issue of Normalization Factor (Sep 28 / 2011)

Step 1. Check the number of photons and events in periods

The number of photons ( from gflux )

The number of events ( from data )

  • Total events : Total events in all decay modes

  • Total events(GPID) : Total events with GPID bank in all decay modes

  • Butanol : # events measured in the butanol target

  • Carbon : # events measured in the carbon target

  • CH2 : # events measured in the CH2 target

Period E(e) [GeV] Target Pol. Total events Target
All events events with GPID bank Butanol Carbon CH2
1 1.645 <= 2.16041e+08 1.90859e+08 1.63444e+08 1.43816e+07 1.30332e+07
2 <= 2.90342e+08 2.54524e+08 2.19766e+08 1.836e+07 1.63977e+07
3 => 5.95545e+08 5.09058e+08 4.38334e+08 3.73482e+07 3.33759e+07
4 2.478 => 3.14900e+08 2.66888e+08 2.31933e+08 1.84907e+07 1.6464e+07
5 <= 7.60642e+08 6.46435e+08 5.62053e+08 4.4581e+07 3.98006e+07
6 => 5.44986e+08 4.80846e+08 4.0149e+08 4.23261e+07 3.70296e+07
7 <= 6.12474e+08 5.47213e+08 4.51357e+08 5.04338e+07 6.52615e+07

    Vertex cut I used

  • Butanol [-4.0,4.0]

  • Carbon [4.5,10.0]

  • Butanol [13.0,19.0]

Step 2. Compare them together

We deivide data into two

Step 3. Find the normalizaiton factor in observable, Pz

* 700 < E(γ) < 800 , 0.5 < cos θ < 0.6

using gflux

using Total events

using Total events (GPID)

using Butanol

using Carbon

using CH2