Difference between revisions of "Mattione Update 09172012"
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=== genr8 Background Events === | === genr8 Background Events === | ||
| − | * % of reconstructed combos remaining in the signal region after performing a Vertex-P4 kinematic fit with a missing proton | + | * % of reconstructed combos remaining in the signal region after performing a Vertex-P4 kinematic fit with a missing proton (except proton is detected where indicated) |
{| border="1" cellpadding="2" align="left" valign="top" style="text-align:center;" | {| border="1" cellpadding="2" align="left" valign="top" style="text-align:center;" | ||
!width="100"| Detector | !width="100"| Detector | ||
!width="100"| Y(2175) | !width="100"| Y(2175) | ||
| − | |||
!width="100"| η'<sub>1</sub>(2300) | !width="100"| η'<sub>1</sub>(2300) | ||
!width="100"| h'<sub>2</sub>(2600) | !width="100"| h'<sub>2</sub>(2600) | ||
| + | !width="100"| φ<sub>3</sub>(1850) | ||
| + | !width="100"| φ<sub>3</sub>(1850) (p detected) | ||
|- | |- | ||
! No CKOV | ! No CKOV | ||
| − | | 0.65% || <span style="color:red">40.45%</span> || | + | | 0.65% || 1.01% || 1.24% || <span style="color:red">40.45%</span> || |
|- | |- | ||
! He DC | ! He DC | ||
| − | | 0.37% || | + | | 0.37% || 0.72% || 0.68% || 14.28% || |
|- | |- | ||
! Gas Thresh. | ! Gas Thresh. | ||
| − | | 0.59% || | + | | 0.59% || 0.68% || 0.60% || 4.50% || |
|- | |- | ||
! HBRICH | ! HBRICH | ||
| − | | <span style="color:blue">0.0014%</span> | + | | <span style="color:blue">0.0014%</span> || <span style="color:blue">0.32%</span> || <span style="color:blue">0.16%</span> || 6.29% || |
|- | |- | ||
! LHCb RICH | ! LHCb RICH | ||
| − | | <span style="color:blue">0.0014%</span> || <span style="color:blue">0. | + | | <span style="color:blue">0.0014%</span> || <span style="color:blue">0.23%</span> || <span style="color:blue">0.042%</span> || <span style="color:blue">0.61%</span> || |
|} | |} | ||
<br style="clear:both;"/> | <br style="clear:both;"/> | ||
=== bggen Background Events === | === bggen Background Events === | ||
| − | * % of reconstructed combos remaining in the signal region after performing a Vertex-P4 kinematic fit with a missing proton | + | * % of reconstructed combos remaining in the signal region after performing a Vertex-P4 kinematic fit with a missing proton (except proton is detected where indicated) |
{| border="1" cellpadding="2" align="left" valign="top" style="text-align:center;" | {| border="1" cellpadding="2" align="left" valign="top" style="text-align:center;" | ||
!width="100"| Detector | !width="100"| Detector | ||
!width="100"| Y(2175) | !width="100"| Y(2175) | ||
| − | |||
!width="100"| η'<sub>1</sub>(2300) | !width="100"| η'<sub>1</sub>(2300) | ||
!width="100"| h'<sub>2</sub>(2600) | !width="100"| h'<sub>2</sub>(2600) | ||
| + | !width="100"| φ<sub>3</sub>(1850) | ||
| + | !width="100"| φ<sub>3</sub>(1850) (p detected) | ||
|- | |- | ||
! No CKOV | ! No CKOV | ||
| − | | 0.0085% || | + | | 0.0085% || 0.0053% || 0.046% || 1.86% || |
|- | |- | ||
! He DC | ! He DC | ||
| − | | 0.0053% || | + | | 0.0053% || 0.0041% || 0.030% || 1.17% || |
|- | |- | ||
! Gas Thresh. | ! Gas Thresh. | ||
| − | | 0.0080% || 0. | + | | 0.0080% || 0.0043% || 0.029% || 0.92% || |
|- | |- | ||
! HBRICH | ! HBRICH | ||
| − | | <span style="color:blue">0.0031%</span> | + | | <span style="color:blue">0.0031%</span> || <span style="color:blue">0.0029%</span> || <span style="color:blue">0.013%</span> || 0.72% || |
|- | |- | ||
! LHCb RICH | ! LHCb RICH | ||
| − | | <span style="color:blue">0.0029%</span> || <span style="color:blue">0. | + | | <span style="color:blue">0.0029%</span> || <span style="color:blue">0.0026%</span> || <span style="color:blue">0.011%</span> || <span style="color:blue">0.44%</span> || |
|} | |} | ||
<br style="clear:both;"/> | <br style="clear:both;"/> | ||
Revision as of 12:55, 17 September 2012
Contents
Cherenkov Detector Details
Helium Drift Chamber
- 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).
- NOTE: Cut NOT performed when #sigmas < 3.0!!
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: Y(2175)
- Kaon PID Studies: φ3(1850)
- Kaon PID Studies: η'(2300)
- Kaon PID Studies: h2'(2600)
Summary
genr8 Background Events
- % of reconstructed combos remaining in the signal region after performing a Vertex-P4 kinematic fit with a missing proton (except proton is detected where indicated)
| Detector | Y(2175) | η'1(2300) | h'2(2600) | φ3(1850) | φ3(1850) (p detected) |
|---|---|---|---|---|---|
| No CKOV | 0.65% | 1.01% | 1.24% | 40.45% | |
| He DC | 0.37% | 0.72% | 0.68% | 14.28% | |
| Gas Thresh. | 0.59% | 0.68% | 0.60% | 4.50% | |
| HBRICH | 0.0014% | 0.32% | 0.16% | 6.29% | |
| LHCb RICH | 0.0014% | 0.23% | 0.042% | 0.61% |
bggen Background Events
- % of reconstructed combos remaining in the signal region after performing a Vertex-P4 kinematic fit with a missing proton (except proton is detected where indicated)
| Detector | Y(2175) | η'1(2300) | h'2(2600) | φ3(1850) | φ3(1850) (p detected) |
|---|---|---|---|---|---|
| No CKOV | 0.0085% | 0.0053% | 0.046% | 1.86% | |
| He DC | 0.0053% | 0.0041% | 0.030% | 1.17% | |
| Gas Thresh. | 0.0080% | 0.0043% | 0.029% | 0.92% | |
| HBRICH | 0.0031% | 0.0029% | 0.013% | 0.72% | |
| LHCb RICH | 0.0029% | 0.0026% | 0.011% | 0.44% |
