11/16/2015 Meeting
Current summary of HAND gemc simulation
Similar to last week, using the simple veto-as-veto-layer-only cut, but with more realistic theta/phi distribution on HAND and including all cases with and without the Pb wall to get a sense of how PID changes with Q2. I also added the cascading veto method to see how that differed. Summary shown in table with details below.
Hydrogen Data, Vetos = Cascading Vetos:
|
With Pb Wall |
Without Pb Wall |
| Proton (Mis-IDed Protons, 2 sigma) |
Q2=0.1 → ---
Q2=0.5 → ---
Q2=1.0 → 3.56% (9726/273101) |
Q2=0.1 → 0.0153% (236/1543075)
Q2=0.5 → 0.604% (15123/2505252)
Q2=1.0 → --- |
| Proton (Mis-IDed Protons, 5 sigma) |
Q2=0.1 → ---
Q2=0.5 → ---
Q2=1.0 → 3.60% (9837/273101) |
Q2=0.1 → 0.0181% (279/1543075)
Q2=0.5 → 0.726% (18175/2505252)
Q2=1.0 → --- |
More realistic dTh:dPh, Vetos = Cascading Vetos:
|
With Pb Wall |
Without Pb Wall |
| Proton (Mis-IDed Protons) |
Q2=0.1 (p=0.39 GeV) → 0.73%
Q2=0.5 (p=0.74 GeV) → 15.1%
Q2=1.0 (p=1.06 GeV) → 2.25% |
Q2=0.1 (p=0.39 GeV) → 0.069%
Q2=0.5 (p=0.74 GeV) → 0.11%
Q2=1.0 (p=1.06 GeV) → % |
| Neutron (Neutron ID Efficiency) |
Q2=0.1 (p=0.39 GeV) → 46.0%
Q2=0.5 (p=0.74 GeV) → 47.9%
Q2=1.0 (p=1.06 GeV) → 54.6% |
Q2=0.1 (p=0.39 GeV) → 39.9%
Q2=0.5 (p=0.74 GeV) → 30.6%
Q2=1.0 (P=1.06 GeV) → 31.7% |
More realistic dTh:dPh, Vetos = Veto Layer:
|
With Pb Wall |
Without Pb Wall |
| Proton (Mis-IDed Protons) |
Q2=0.1 (p=0.39 GeV)→ 0.39%
Q2=0.5 (p=0.74 GeV)→ 4.1%
Q2=1.0 (p=1.06 GeV)→ 3.1% |
Q2=0.1 (p=0.39 GeV)→ 0.070%
Q2=0.5 (p=0.74 GeV)→ 0.12%
Q2=1.0 (p=1.06 GeV)→ 0.17% |
| Neutron (Neutron ID Efficiency) |
Q2=0.1 (p=0.39 GeV) → 22.4%
Q2=0.5 (p=0.74 GeV) → 17.8%
Q2=1.0 (p=1.06 GeV) → 16.2% |
Q2=0.1 (p=0.39 GeV) → 30.5%
Q2=0.5 (p=0.74 GeV) → 22.9%
Q2=1.0 (P=1.06 GeV) → 22.8% |
Older, narrower dTh:dPh, Vetos = Veto Layer (for comparison):
|
With Pb Wall |
Without Pb Wall |
| Proton (Mis-IDed Protons) |
Q2=1.0 → 3.3% |
Q2=0.1 → 0.17%
Q2=0.5 → 0.16%
|
| Neutron (Neutron ID Efficiency) |
Q2=1.0 → 15.5% |
Q2=0.1 → 30.0%
Q2=0.5 → 22.4%
|
Details for Cascading Vetos as Veto
Q^2=0.1 GeV^2
Q2=0.13 GeV^2, p_n = 0.393905 +/- 0.0793339 GeV
Neutron, with Pb wall
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 459841
Events in Vetos (Not Detected): 60147
HAND Neutron ID efficiency = 45.9841%
Q2=0.13 GeV^2, p_n = 0.393905 +/- 0.0793339 GeV
Proton, with Pb wall
Total Protons Thrown: 1000000
Total Neutrons Detected: 7285
Events in Vetos (Not Detected): 951
Mis-IDed Protons = 0.7285%
Q2=0.13 GeV^2, p_n = 0.393905 +/- 0.0793339 GeV
Neutron, no Pb wall
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 398500
Events in Vetos (Not Detected): 62596
HAND Neutron ID efficiency = 39.85%
Q2=0.13 GeV^2, p_n = 0.393905 +/- 0.0793339 GeV
Proton, no Pb wall
Total Protons Thrown: 1000000
Total Neutrons Detected: 692
Events in Vetos (Not Detected): 998637
Mis-IDed Protons = 0.0692%
Q^2=0.5 GeV^2
Q2=0.46 GeV^2, p_n = 0.736819 +/- 0.0424121 GeV
Neutron, with Pb wall
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 478982
Events in Vetos (Not Detected): 48975
HAND Neutron ID efficiency = 47.8982%
Q2=0.46 GeV^2, p_n = 0.736819 +/- 0.0424121 GeV
Proton, with Pb wall
Total Protons Thrown: 1000000
Total Neutrons Detected: 151073
Events in Vetos (Not Detected): 15756
Mis-IDed Protons = 15.1073%
Q2=0.46 GeV^2, p_n = 0.736819 +/- 0.0424121 GeV
Neutron, no Pb wall
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 305787
Events in Vetos (Not Detected): 52385
HAND Neutron ID efficiency = 30.5787%
Q2=0.46 GeV^2, p_n = 0.736819 +/- 0.0424121 GeV
Proton, no Pb wall
Total Protons Thrown: 1000000
Total Neutrons Detected: 1096
Events in Vetos (Not Detected): 998259
Mis-IDed Protons = 0.1096%
Q^2=1.0 GeV^2
Q2=0.96 GeV^2, p_n = 1.05507 +/- 0.0296188 GeV
Neutron, with Pb wall
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 545927
Events in Vetos (Not Detected): 36987
HAND Neutron ID efficiency = 54.5927%
Q2=0.96 GeV^2, p_n = 1.05507 +/- 0.0296188 GeV
Proton, with Pb wall
Total Protons Thrown: 1000000
Total Neutrons Detected: 22481
Events in Vetos (Not Detected): 934329
Mis-IDed Protons = 2.2481%
Q2=0.96 GeV^2, p_n = 1.05507 +/- 0.0296188 GeV
Neutron, no Pb wall
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 317213
Events in Vetos (Not Detected): 64334
HAND Neutron ID efficiency = 31.7213%
Details for Veto Layer as Veto
Q^2=0.1 GeV^2
Q2=0.13 GeV^2, p_n = 0.393905 +/- 0.0793339 GeV
Neutron, with Pb wall
nentries: 1000000
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 224346
Events in Vetos (Not Detected): 372709
HAND Neutron ID efficiency = 22.4346%
Q2=0.13 GeV^2, p_n = 0.393905 +/- 0.0793339 GeV
Proton, with Pb wall
nentries: 1000000
Total Protons Thrown: 1000000
Total Neutrons Detected: 3888
Events in Vetos (Not Detected): 9285
Mis-IDed Protons = 0.3888%
Q2=0.13 GeV^2, p_n = 0.393905 +/- 0.0793339 GeV
Neutron, no Pb wall
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 304919
Events in Vetos (Not Detected): 169365
HAND Neutron ID efficiency = 30.4919%
Q2=0.13 GeV^2, p_n = 0.393905 +/- 0.0793339 GeV
Proton, no Pb wall
nentries: 1000000
Total Protons Thrown: 1000000
Total Neutrons Detected: 704
Events in Vetos (Not Detected): 998625
Mis-IDed Protons = 0.0704%
Q^2=0.5 GeV^2
Q2=0.46 GeV^2, p_n = 0.736819 +/- 0.0424121 GeV
Neutron, with Pb wall
nentries: 1000000
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 178480
Events in Vetos (Not Detected): 391180
HAND Neutron ID efficiency = 17.848%
Q2=0.46 GeV^2, p_n = 0.736819 +/- 0.0424121 GeV
Proton, with Pb wall
nentries: 1000000
Total Protons Thrown: 1000000
Total Neutrons Detected: 41092
Events in Vetos (Not Detected): 176528
Mis-IDed Protons = 4.1092%
Q2=0.46 GeV^2, p_n = 0.736819 +/- 0.0424121 GeV
Neutron, no Pb wall
nentries: 1000000
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 228837
Events in Vetos (Not Detected): 135449
HAND Neutron ID efficiency = 22.8837%
Q2=0.46 GeV^2, p_n = 0.736819 +/- 0.0424121 GeV
Proton, no Pb wall
nentries: 1000000
Total Protons Thrown: 1000000
Total Neutrons Detected: 1195
Events in Vetos (Not Detected): 998160
Mis-IDed Protons = 0.1195%
Q^2=1.0 GeV^2
Q2=0.96 GeV^2, p_n = 1.05507 +/- 0.0296188 GeV
Neutron, with Pb wall
nentries: 1000000
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 161661
Events in Vetos (Not Detected): 448810
HAND Neutron ID efficiency = 16.1661%
Q2=0.96 GeV^2, p_n = 1.05507 +/- 0.0296188 GeV
Proton, with Pb wall
nentries: 1000000
Total Protons Thrown: 1000000
Total Neutrons Detected: 31279
Events in Vetos (Not Detected): 925531
Mis-IDed Protons = 3.1279%
Q2=0.96 GeV^2, p_n = 1.05507 +/- 0.0296188 GeV
Neutron, no Pb wall
nentries: 1000000
Total Neutrons Thrown: 1000000
Total Neutrons Detected: 228394
Events in Vetos (Not Detected): 157618
HAND Neutron ID efficiency = 22.8394%
Q2=0.96 GeV^2, p_n = 1.05507 +/- 0.0296188 GeV
Proton, no Pb wall
nentries: 1000000
Total Protons Thrown: 1000000
Total Neutrons Detected: 1739
Events in Vetos (Not Detected): 997617
Mis-IDed Protons = 0.1739%
To-do: Veto cuts reflecting the same "cascading veto" used on real data