# 2010.01.08 EEMC response 2006 vs. 2009: phi cuts

### EEMC migration plots with cuts on TPC sector boundaries

Click here for results before phi cuts

### Monte-Carlo setup

- Throwing one photon per event
- Full STAR y2006h/y2009a configurations
- Throw particles flat in eta (1.08, 2.0), phi (0, 2pi), and energy (5-35 GeV)
- Using A2Emaker to get reconstructed Tower/SMD energy (no EEMC SlowSimulator in chain)
- Vertex z=0
- ~50K/per particle type
- Non-zero energy: 3 sigma above pedestal

Geometry configurations:

**y6h:10KeV**(black) - y2006h with emc_10KeV option**y9a:10KeV**(red) - y2009a with emc_10KeV option

**Figure 1:** Average pre-shower1 energy vs. thown photon position in EEMC

with cuts on TPC sector boundaries: cos(12*(phi-Pi/6.)) < -0.65 (similar plot before phi cuts)

(left) y2009a with emc_10KeV

(right) y2006h with emc_10KeV

**Figure 2:** Pre-shower 1 sampling fraction (E_pre1/E_thrown) vs. thrown eta

**Figure 3:** EEMC sampling fraction

(left) vs. thrown photon energy (with 1.2 < eta < 1.9 cut)

(right) vs. thrown photon eta

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