Mattione Update 09172012
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Contents
Cherenkov Detector Details
Helium Drift Chamber
- From 1 to 18 degrees.
- K/proton separation not shown but is included in the study.
- Separation between Pions & Kaons as a function of momentum.
- Theta dependence changes above 12 degrees but is not shown (not super large).
Gas Threshold (Original Design)
- From ~1 or ~0 to 10 degrees
- No K/proton separation
- Separation between Pions & Kaons as a function of momentum.
- Theta dependence is present but not shown (not super large).
HBRICH
- From ~1 or ~0 to 20 degrees
- K/proton separation not shown but is included in the study.
- Separation between Pions & Kaons as a function of momentum.
- Theta dependence is present but not shown (not super large).
LHCb RICH
- BIG IMPORTANT NOTE: These studies were performed with the parameters of the LHCb RICH AS IS (at a ~$4 million cost)
- From 0 to 20 degrees
- 99.3% K/Pi separation from 0.6 to 2.6 GeV/c
- Perfect K/Pi separation above 2.6 GeV/c
- 99.3% K/proton separation from 2.0 to 10.0 GeV/c
- Perfect K/proton separation above 10.0 GeV/c
Studies
- Kaon PID Studies: φ3(1850)
- Kaon PID Studies: Y(2175)
- Kaon PID Studies: η1'(2300)
- Kaon PID Studies: h2'(2600)
Summary
- ALL data are determined in the signal region (track combinations with invariant mass outside of the signal region are ignored), and from Eγ = 8.5 - 9.0 GeV
- Only the VertexP4 KinFit results (for both missing proton and no-missing) are shown here.
Yield %'s
- % of generated events remaining after all cuts (including a final cut requiring that all tracks have the correct THROWN PID)
Detector / PID Cut | φ3(1850), (p) | Y(2175), (p) | η'1(2300), (p) | h'2(2600), (p) | φ3(1850), p | Y(2175), p | η'1(2300), p | h'2(2600), p |
---|---|---|---|---|---|---|---|---|
No CKOV | 27.1151% | 7.50864% | 2.28122% | 2.99637% | 11.6797% | 2.64085% | 0.823292% | 0.98661% |
He DC K: 1 Exclusive |
19.7511% | 5.92137% | 1.09893% | 2.05918% | 8.37895% | 2.06825% | 0.394798% | 0.698757% |
Gas Threshold K: 1 Exclusive |
24.3453% | 7.32316% | 1.36843% | 2.31741% | 9.99005% | 2.57775% | 0.493155% | 0.785577% |
HBRICH K: 1 Exclusive |
26.3715% | 7.18456% | 1.89643% | 2.61845% | 11.1512% | 2.53028% | 0.684736% | 0.909531% |
LHCb RICH K: 1 Exclusive |
26.1134% | 7.2575% | 1.50837% | 2.43328% | 10.8679% | 2.55721% | 0.542613% | 0.829916% |
Signal / Background Ratios
- Signal / Background Ratios
Detector / PID Cut | φ3(1850), (p) | Y(2175), (p) | η'1(2300), (p) | h'2(2600), (p) | φ3(1850), p | Y(2175), p | η'1(2300), p | h'2(2600), p |
---|---|---|---|---|---|---|---|---|
No CKOV | 0.0195118 | 0.0250697 | 0.00289624 | 0.0047081 | 1.07163 | |||
He DC K: Inclusive |
0.0331994 | 0.0365619 | 0.00362402 | 0.00650644 | 1.13469 | |||
Gas Threshold K: Inclusive |
0.0433289 | 0.0343859 | 0.00408972 | 0.00744195 | 1.15175 | |||
HBRICH K: Inclusive |
0.0583342 | 0.0585217 | 0.00443097 | 0.0122539 | 1.15841 | |||
LHCb RICH K: Inclusive |
0.0501617 | 0.0530719 | 0.00455084 | 0.0103902 | 1.15521 | |||
He DC K: 1 Exclusive |
0.0840888 | 0.0658157 | 0.0069218 | 0.0119952 | 1.23877 | |||
Gas Threshold K: 1 Exclusive |
0.115124 | 0.0813565 | 0.0080035 | 0.0123712 | 1.11751 | |||
HBRICH K: 1 Exclusive |
0.154364 | 0.104682 | 0.0124215 | 0.0202096 | 1.14907 | |||
LHCb RICH K: 1 Exclusive |
0.137432 | 0.105741 | 0.0112272 | 0.0167062 | 1.22991 |
Signal / Background Ratios : Improvements Over No CKOV
- Detector Signal / Background Ratio (StBR) DIVIDED BY No CKOV StBR
Detector / PID Cut | φ3(1850), (p) | Y(2175), (p) | η'1(2300), (p) | h'2(2600), (p) | φ3(1850), p | Y(2175), p | η'1(2300), p | h'2(2600), p |
---|---|---|---|---|---|---|---|---|
He DC K: Inclusive |
1.7015 | 1.45841 | 1.25129 | 1.38197 | 1.05884 | 1.30516 | 1.24168 | 0.971973 |
Gas Threshold K: Inclusive |
2.22065 | 1.37161 | 1.41208 | 1.58067 | 1.07477 | 1.30722 | 1.24982 | 0.971494 |
HBRICH K: Inclusive |
2.98968 | 2.33436 | 1.5299 | 2.60273 | 1.08098 | 1.29235 | 1.23965 | 1.02967 |
LHCb RICH K: Inclusive |
2.57083 | 2.11697 | 1.57129 | 2.20688 | 1.07799 | 1.29286 | 1.24041 | 0.953137 |
He DC K: 1 Exclusive |
4.30963 | 2.6253 | 2.38993 | 2.54777 | 1.15596 | 1.56253 | 2.39656 | 0.944839 |
Gas Threshold K: 1 Exclusive |
5.90022 | 3.24521 | 2.76341 | 2.62763 | 1.04281 | 1.29978 | 2.24534 | 0.86975 |
HBRICH K: 1 Exclusive |
7.91128 | 4.17563 | 4.28883 | 4.29252 | 1.07227 | 1.27598 | 2.07852 | 1.00563 |
LHCb RICH K: 1 Exclusive |
7.04351 | 4.21788 | 3.87647 | 3.54839 | 1.1477 | 1.28949 | 1.97659 | 0.918396 |