# 2009.11.06 new EEMC geometry: Pure lead and new SMD layers

Monte-Carlo setup:

- One photon per event
**Disabled/Enabled SMD layers (EXPS EBLS EFLS)**in Jason geometry**Alter the ELED block**with pure lead- Full STAR geometry configurations
**with and without LOW_EM option**

(using Victor's geometry fix) - Throw particles flat in eta (1.08, 2.0), phi (0, 2pi), and pt (6-10 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

**dashed/open red**(j-noEM,noL,Pb):

full STAR y2006, no LOW_EM, Jason EEMC geometry without new SMD layers, pure lead in ELED block**solid red**(j-EM,noL,Pb):

full STAR y2006, LOW_EM, Jason EEMC geometry without new SMD layers, pure lead in ELED block**dashed/open black**(j-noEM,Pb):

full STAR y2006, no LOW_EM, Jason EEMC geometry with new SMD layers, pure lead in ELED block**solid black**(j-EM,Pb):

full STAR y2006, LOW_EM, Jason EEMC geometry with new SMD layers, pure lead in ELED block

### Sampling fraction of various EEMC layers (tower, SMD, pre1-,pre2-, post- shower)

**Figure 1:** Tower sampling fraction distribution

**Figure 2:** Tower sampling fraction vs. thrown energy

**Figure 3:** Tower sampling fraction vs. position of the thrown photon

**Figure 4:** Pre1, pre2, post and SMD sampling fraction distribution

**Figure 5:** Pre1, pre2, post and SMD sampling fraction vs. thrown energy

### SMD shower shapes

**Figure 6:** SMD-v shower shapes

**Figure 7:** SMD-v shower shape ratios

**Figure 8:** Number of SMD-u strips

**Figure 9:** Number of SMD-v strips

### Tower energy profile

**Figure 10:** Energy ractio of 2x1 to 3x3 cluster vs. gamma-jet data

### Energy deposition in various EEMC layers vs. position of the thrown photon

**Figure 11:** Pre-shower1 energy

**Figure 12:** Pre-shower2 energy

**Figure 13:** Post-shower energy

**Figure 14:** SMD-v energy

**Figure 15:** Number of towers

### LOW_EM option and pre-shower migration

**Figure 16:** Tower Sampling fraction: LOW_EM option and pre-shower migration

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