2009.11.02 Jason EEMC geometry: results with and without LOW_EM options

Monte-Carlo setup:

  • One photon per event
  • Disabled SMD layers (EXPS EBLS EFLS) in Jason geometry
  • 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 and notations (shown in the center of the plot):

  1. full-cvs-noEM (dashed): CVS geometry (cAir-fixed) without LOW_EM option
  2. full-cvs-EM (solid): CVS geometry (cAir-fixed) with LOW_EM option
  3. full-j-NoEM-noL: Jason geometry (disabled 3-new SMD layers) without LOW_EM option
  4. full-j-EM-noL: Jason geometry (disabled 3-new SMD layers) with LOW_EM option

Figure 1: Distribution of the sampling fraction (total energy in EEMC)

Figure 2: Sampling fraction (total energy in EEMC) vs. thrown energy

Figure 3: Sampling fraction (total energy in EEMC) vs. position of the thrown photon