1. Energy Loss Toshiyuki Gogami 15Apr2013

2. Simulation Particles are generated at the center of target Randomly generation points are moved in the target thickness Fitted by the single landau function K + : HKS GEANT4 E’ : POSI GEANT4 K + : HKS GEANT4 E’ : POSI GEANT4 EXAMPLE (POSI, 12 C, 100mg/cm 2 )

3. Results of Energy Loss TargetK + (1.2 GeV)e’ (3.0 GeV) 208 Pb 50mg/cm 2 21.8 ± 0.1022.1 ± 0.06 208 Pb 100mg/cm 2 45.5 ± 0.1746.1 ± 0.09 208 Pb 200mg/cm 2 96.3 ± 0.2699.8 ± 0.21 12 C 100mg/cm 2 72.7 ± 0.0663.0 ± 0.06 Unit : keV These values are peak center values derived by the fitting

4. Results of Straggling (Rough estimations) TargetK + (1.2 GeV)e’ (3.0 GeV) 208 Pb 50mg/cm 2 40 208 Pb 100mg/cm 2 90 208 Pb 200mg/cm 2 190200 12 C 100mg/cm 2 140120 Unit : keV These values are derived just by multiplying the energy loss values by 2

5. END