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Research algorithm of overlapping clusters in PrimEx

Research algorithm of overlapping clusters in PrimEx. By Victor Tarasov. Main purpose. To look how works 1) mechanism of clusterization in PrimEx 2) algorithm of overlapping clusters in PrimEx. Simulation 1 gamma with Energy 2 GeV , X=11 cm, Y=15 cm. E= 1.99±0.04 X= 10.98 ± 0.18

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Research algorithm of overlapping clusters in PrimEx

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  1. Research algorithm of overlapping clusters in PrimEx By Victor Tarasov

  2. Main purpose To look how works • 1) mechanism of clusterization in PrimEx • 2) algorithm of overlapping clusters in PrimEx

  3. Simulation 1 gamma with Energy 2 GeV, X=11 cm, Y=15 cm E= 1.99±0.04 • X= 10.98±0.18 • Y=14.99±0.16

  4. The dependence between GEANT energy and energy in HyCal (for 0.5, 1.0, 1.5, 2.0 GeV)

  5. Simulation of 2 gammas with energies 1 and 10 GeV; 3 and 8 GeV X1 = 5, Y1 = 15 X2 = -5, Y2 = 15 in both cases • Reconstruct position (X and Y) have a values with good agreement relatively GEANT values in error limits

  6. Energy calibration in PrimEx

  7. Check position and energy for 1 gamma in GEANT energy range 0.5 - 8 GeV GEANT X=11 Y=15 in all cases

  8. Table with values for 1 gamma simulation

  9. Extreme position GEANT HyCal E = 2 GeV, E =(1.99±0.04) GeV • X = 32cm , X=(32.01±0,22) cm • Y = 32cm, Y=(32,04±0,24) cm

  10. Double check for 2 gammas GEANT E1 = E2 = 5.5 , X1 = -5, X2 = 5, • Y1=Y2=15, HyCal E = 5.56±0.08, X1 = -4.96±0.16, X2 = 4.97±0.16, • Y =14.98±0.12,

  11. Overlapping clusters Simulation 2 gammas with fixed Energy (1 and 4 GeV) and different distance between them: 2,3,4,5 and 6 cm

  12. |Egeant/Ehycal-1| < 2·σ,where σ is energy resolution in researching diapason of energy Dependence between probability to separate 2 clusters and distance between them

  13. Conclusion Connection with PrimEx experiment a) Examination with PrimEx setup b) Examination with PrimEx program software, look how GEANT and prim_ana (main program for analyzing in this experiment) works Look for mechanism of reconstruction coordinate and energy Research mechanism of overlapping clusters

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