Difference between revisions of "Mattione Update 09172012"

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(→‎Signal / Background Ratios)
(→‎Signal / Background Ratios : Improvements Over No CKOV)
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|-
 
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! He DC <br style="clear:both;"/> K: Inclusive
 
! He DC <br style="clear:both;"/> K: Inclusive
−
| 1.7015 || 1.45841 || 1.25129 || 1.38197 || 1.05884 || 1.30516 || 1.24168 || 0.971973
+
| 1.7015 || 1.45841 || 1.25129 || 1.38197 || 1.05884 || || ||  
 
|-
 
|-
 
! Gas Threshold <br style="clear:both;"/> K: Inclusive
 
! Gas Threshold <br style="clear:both;"/> K: Inclusive
−
| 2.22065 || 1.37161 || 1.41208 || 1.58067 || 1.07477 || 1.30722 || 1.24982 || 0.971494
+
| 2.22065 || 1.37161 || 1.41208 || 1.58067 || 1.07477 || || ||  
 
|-
 
|-
 
! HBRICH <br style="clear:both;"/> K: Inclusive
 
! HBRICH <br style="clear:both;"/> K: Inclusive
−
| 2.98968 || 2.33436 || 1.5299 || 2.60273 || 1.08098 || 1.29235 || 1.23965 || 1.02967
+
| 2.98968 || 2.33436 || 1.5299 || 2.60273 || 1.08098 || || ||  
 
|-
 
|-
 
! LHCb RICH <br style="clear:both;"/> K: Inclusive
 
! LHCb RICH <br style="clear:both;"/> K: Inclusive
−
| 2.57083 || 2.11697 || 1.57129 || 2.20688 || 1.07799 || 1.29286 || 1.24041 || 0.953137
+
| 2.57083 || 2.11697 || 1.57129 || 2.20688 || 1.07799 || || ||  
 
|-
 
|-
 
! He DC <br style="clear:both;"/> K: 1 Exclusive
 
! He DC <br style="clear:both;"/> K: 1 Exclusive
−
| 4.30963 || 2.6253 || 2.38993 || 2.54777 || 1.15596 || 1.56253 || 2.39656 || 0.944839
+
| 4.30963 || 2.6253 || 2.38993 || 2.54777 || 1.15596 || || ||  
 
|-
 
|-
 
! Gas Threshold <br style="clear:both;"/> K: 1 Exclusive
 
! Gas Threshold <br style="clear:both;"/> K: 1 Exclusive
−
| 5.90022 || 3.24521 || 2.76341 || 2.62763 || 1.04281 || 1.29978 || 2.24534 || 0.86975
+
| 5.90022 || 3.24521 || 2.76341 || 2.62763 || 1.04281 || || ||  
 
|-
 
|-
 
! HBRICH <br style="clear:both;"/> K: 1 Exclusive
 
! HBRICH <br style="clear:both;"/> K: 1 Exclusive
−
| 7.91128 || 4.17563 || 4.28883 || 4.29252 || 1.07227 || 1.27598 || 2.07852 || 1.00563
+
| 7.91128 || 4.17563 || 4.28883 || 4.29252 || 1.07227 || || ||  
 
|-
 
|-
 
! LHCb RICH <br style="clear:both;"/> K: 1 Exclusive
 
! LHCb RICH <br style="clear:both;"/> K: 1 Exclusive
−
| 7.04351 || 4.21788 || 3.87647 || 3.54839 || 1.1477 || 1.28949 || 1.97659 || 0.918396
+
| 7.04351 || 4.21788 || 3.87647 || 3.54839 || 1.1477 || || ||  
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>

Revision as of 01:32, 26 September 2012

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).
Mattione Update 09172012 HeDC PiKSeparation.png


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).
Mattione Update 09172012 GasThreshold PiKSeparation.png


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).
Mattione Update 09172012 RICH PiKSeparation.png


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

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
Gas Threshold
K: Inclusive 		2.22065 1.37161 1.41208 1.58067 1.07477
HBRICH
K: Inclusive 		2.98968 2.33436 1.5299 2.60273 1.08098
LHCb RICH
K: Inclusive 		2.57083 2.11697 1.57129 2.20688 1.07799
He DC
K: 1 Exclusive 		4.30963 2.6253 2.38993 2.54777 1.15596
Gas Threshold
K: 1 Exclusive 		5.90022 3.24521 2.76341 2.62763 1.04281
HBRICH
K: 1 Exclusive 		7.91128 4.17563 4.28883 4.29252 1.07227
LHCb RICH
K: 1 Exclusive 		7.04351 4.21788 3.87647 3.54839 1.1477



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