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
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile1D_towerClusters_sampling_dist.png)
Figure 2: Tower sampling fraction vs. thrown energy
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile1D_towerClusters_sampling_geantEnergy.png)
Figure 3: Tower sampling fraction vs. position of the thrown photon
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile2D_towSampling.png)
Figure 4: Pre1, pre2, post and SMD sampling fraction distribution
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile1D_pre12postSMDv_sampling_dist.png)
Figure 5: Pre1, pre2, post and SMD sampling fraction vs. thrown energy
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile1D_pre12_post_smdV_sampling_geantEnergy.png)
SMD shower shapes
Figure 6: SMD-v shower shapes
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_shape_eta120_pt700_vPlane.png)
Figure 7: SMD-v shower shape ratios
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_shape_eta120_pt700_vPlane_ratio.png)
Figure 8: Number of SMD-u strips
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile2D_nSmdU.png)
Figure 9: Number of SMD-v strips
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile2D_nSmdV.png)
Tower energy profile
Figure 10: Energy ractio of 2x1 to 3x3 cluster vs. gamma-jet data
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_hist1D_EtowRatio_2x1_3x3_log1.png)
Energy deposition in various EEMC layers vs. position of the thrown photon
Figure 11: Pre-shower1 energy
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile2D_Epre1.png)
Figure 12: Pre-shower2 energy
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile2D_Epre2.png)
Figure 13: Post-shower energy
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile2D_Epost.png)
Figure 14: SMD-v energy
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile2D_Esmdu.png)
Figure 15: Number of towers
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_profile2D_nTow.png)
LOW_EM option and pre-shower migration
Figure 16: Tower Sampling fraction: LOW_EM option and pre-shower migration
![](/STAR/files/userfiles/133/image/20091106/20091106_photons_v24noEM_jAllnoEM_v24EM_jAllEM_eta120_190_pt60_100_hist1D_towSampling_log0.png)