Difference between revisions of "Mattione Update 09172012"

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(Summary)
(Summary)
Line 84: Line 84:
 
!width="100"| h'<sub>2</sub>(2600)
 
!width="100"| h'<sub>2</sub>(2600)
 
|-
 
|-
! w/o CKOV
+
! No CKOV
| 0.65% || ||  ||   
+
| 0.65% || <span style="color:red">40.45%</span> ||  ||   
 
|-
 
|-
 
! He DC
 
! He DC
| 0.37% || ||  ||   
+
| 0.37% || 14.28% ||  ||   
 
|-
 
|-
 
! Gas Thresh.
 
! Gas Thresh.
| 0.59% || ||  ||   
+
| 0.59% || 4.50% ||  ||   
 
|-
 
|-
 
! RICH (Yi)
 
! RICH (Yi)
| <span style="color:blue">0.0014%</span> || ||  ||  
+
| <span style="color:blue">0.0014%</span> || 6.29% ||  ||  
 
|-
 
|-
 
! LHCb RICH
 
! LHCb RICH
| <span style="color:blue">0.0014%</span> || ||  ||  
+
| <span style="color:blue">0.0014%</span> || <span style="color:blue">0.61%</span> ||  ||  
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
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!width="100"| h'<sub>2</sub>(2600)
 
!width="100"| h'<sub>2</sub>(2600)
 
|-
 
|-
! w/o CKOV
+
! No CKOV
| 0.0085% || ||  ||   
+
| 0.0085% || 1.86% ||  ||   
 
|-
 
|-
 
! He DC
 
! He DC
| 0.0053% || ||  ||   
+
| 0.0053% || 1.17% ||  ||   
 
|-
 
|-
 
! Gas Thresh.
 
! Gas Thresh.
| 0.0080% || ||  ||   
+
| 0.0080% || 0.92% ||  ||   
 
|-
 
|-
 
! RICH (Yi)
 
! RICH (Yi)
| <span style="color:blue">0.0031%</span> || ||  ||  
+
| <span style="color:blue">0.0031%</span> || 0.72% ||  ||  
 
|-
 
|-
 
! LHCb RICH
 
! LHCb RICH
| <span style="color:blue">0.0029%</span> || ||  ||  
+
| <span style="color:blue">0.0029%</span> || <span style="color:blue">0.44%</span> ||  ||  
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>

Revision as of 02:46, 17 September 2012

Cherenkov Detector Details

Helium Drift Chamber

p, GeV/c    sigmas
  • 1 < theta < 12 deg.
  0.6245    4.2037
  0.8789    1.7938
  1.1314    0.2436
  1.6340    1.9882
  2.1354    2.5751
  3.1369    2.7551
  4.1376    3.0187
  5.1381    3.2674
  6.1384    3.1173
  7.1386    2.9361
  8.1388    3.4436
  • 12< theta < 14.5 deg
  0.6245    4.0642
  0.8789    1.7085
  1.1314    0.2277
  1.6340    1.9594
  2.1354    2.5265
  3.1369    2.6784
  4.1376    2.9421
  5.1381    3.1976
  6.1384    3.0447
  7.1386    2.8590
  8.1388    3.3818
  • 14.5 < theta < 18 deg
  0.6245    2.9724
  0.8789    1.2684
  1.1314    0.1723
  1.6340    1.4059
  2.1354    1.8209
  3.1369    1.9482
  4.1376    2.1345
  5.1381    2.3104
  6.1384    2.2043
  7.1386    2.0762
  8.1388    2.4350

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


RICH (Yi)

  • 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

genr8 Background Events

  •  % of reconstructed combos remaining in the signal region after performing a Vertex-P4 kinematic fit with a missing proton
Detector Y(2175) φ3(1850) η'1(2300) h'2(2600)
No CKOV 0.65% 40.45%
He DC 0.37% 14.28%
Gas Thresh. 0.59% 4.50%
RICH (Yi) 0.0014% 6.29%
LHCb RICH 0.0014% 0.61%


bggen Background Events

  •  % of reconstructed combos remaining in the signal region after performing a Vertex-P4 kinematic fit with a missing proton
Detector Y(2175) φ3(1850) η'1(2300) h'2(2600)
No CKOV 0.0085% 1.86%
He DC 0.0053% 1.17%
Gas Thresh. 0.0080% 0.92%
RICH (Yi) 0.0031% 0.72%
LHCb RICH 0.0029% 0.44%