Difference between revisions of "Mattione Kaon PID Studies phi3(1850)"

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(→‎Mass Peaks & Kinematic Fitting)
(→‎Yield %'s & Signal / Background Ratios)
 
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** Mass cuts as illustrated.
 
** Mass cuts as illustrated.
  
−
== Mass Peaks & Kinematic Fitting ==
+
== Mass Peaks & Kinematic Fitting : P Missing ==
  
−
=== genr8 &phi;<sub>3</sub>(1850) Signal ===
+
* NOTES:
−
 
+
** Plots are shown for "VertexP4 KinFit" only.
−
* Kinematic Fit Confidence Level (Zoomed in; spike at 0 confidence is well off the top of the plot)
+
** Mass Plots: Pre-KinFit is Magenta, Post-KinFit is Teal
 +
** Kinematic Fit Confidence Level is zoomed in: spike at 0 confidence is well off the top of the plot
 +
** For the genr8 background, It wasn't possible to lineup every mass peak (without generating the recoil proton at a bogus mass), so the missing mass peak is a little off-center.
 +
** If a cut is shown, then all "Post-KinFit" plots after that cut include it.
 
{| 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="75"| Recoil p
+
!width="75"| Plot
−
!width="350"| P4 KinFit
+
!width="350"| genr8 &phi;<sub>3</sub>(1850) Signal
−
!width="350"| VertexP4 KinFit
+
!width="350"| genr8 &phi;<sub>3</sub>(1850) Background
−
|-
+
!width="350"| bggen Background
−
! Missing
+
|-  
−
| [[Image:Mattione_Update_09132012_KinFitConLev_MissingP_P4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_KinFitConLev_MissingP_VertexP4KinFit_Phi1850.png|left|350px]]
+
! Confidence Level
−
|-
+
| [[Image:Mattione_Update_09132012_KinFitConLev_MissingP_VertexP4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_KinFitConLev_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_KinFitConLev_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
−
! Not Missing
+
|-  
−
| [[Image:Mattione_Update_09132012_KinFitConLev_NoMissing_P4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_KinFitConLev_NoMissing_VertexP4KinFit_Phi1850.png|left|350px]]
+
! Missing Mass
 +
| [[Image:Mattione_Update_09132012_MissingMass_MissingP_VertexP4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
 +
|-
 +
! &phi;<sub>3</sub>(1850) Mass
 +
| [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_VertexP4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
  
−
* Missing Mass & Missing Mass Squared (Before/after KinFit where present)
+
== Mass Peaks & Kinematic Fitting: No Missing ==
−
{| border="1" cellpadding="2" align="left" valign="top" style="text-align:center;"
+
−
!width="75"| Recoil p
+
−
!width="350"| No KinFit
+
−
!width="350"| P4 KinFit
+
−
!width="350"| VertexP4 KinFit
+
−
|-
+
−
! Missing
+
−
| [[Image:Mattione_Update_09132012_MissingMass_MissingP_NoKinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_MissingP_P4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_MissingP_VertexP4KinFit_Phi1850.png|left|350px]]
+
−
|-
+
−
! Not Missing
+
−
| [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_NoKinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_P4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_VertexP4KinFit_Phi1850.png|left|350px]]
+
−
|}
+
−
<br style="clear:both;"/>
+
  
−
* &phi;<sub>3</sub>(1850) Invariant Mass (Before/after KinFit where present)
+
* NOTES:
 +
** Plots are shown for "VertexP4 KinFit" only.
 +
** Mass Plots: Pre-KinFit is Magenta, Post-KinFit is Teal
 +
** Kinematic Fit Confidence Level is zoomed in: spike at 0 confidence is well off the top of the plot
 +
** For the genr8 background, It wasn't possible to lineup every mass peak (without generating the recoil proton at a bogus mass), so the missing mass peak is a little off-center.
 +
** If a cut is shown, then all "Post-KinFit" plots after that cut include it.
 
{| 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="75"| Recoil p
+
!width="75"| Plot
−
!width="350"| No KinFit
+
!width="350"| genr8 &phi;<sub>3</sub>(1850) Signal
−
!width="350"| P4 KinFit
+
!width="350"| genr8 &phi;<sub>3</sub>(1850) Background
−
!width="350"| VertexP4 KinFit
+
!width="350"| bggen Background
−
|-
+
|-  
−
! Missing
+
! Confidence Level
−
| [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_NoKinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_P4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_VertexP4KinFit_Phi1850.png|left|350px]]
+
| [[Image:Mattione_Update_09132012_KinFitConLev_NoMissing_VertexP4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_KinFitConLev_NoMissing_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_KinFitConLev_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
−
|-
+
|-  
−
! Not Missing
+
! Missing Mass Squared
−
| [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_NoKinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_P4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_VertexP4KinFit_Phi1850.png|left|350px]]
+
| [[Image:Mattione_Update_09132012_MissingMass_NoMissing_VertexP4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_NoMissing_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
 +
|-
 +
! &phi;<sub>3</sub>(1850) Mass
 +
| [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_VertexP4KinFit_Phi1850.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
 +
 +
== Cherenkov Detector Comparison ==
  
 
=== genr8 &phi;<sub>3</sub>(1850) Background ===
 
=== genr8 &phi;<sub>3</sub>(1850) Background ===
−
* Generate pions instead of kaons, shift generated mass peaks so that when the kaon mass is assigned to the kaon candidates (pions), the mass peaks shift to the original signal masses.
 
−
** Note that it is impossible to get every peak to line up without generated a recoil proton with a bogus mass.  Therefore, the missing mass peak is slightly off. 
 
  
−
* Missing Mass & Missing Mass Squared (Before/after KinFit where present)
+
* P vs. &theta; of &pi;<sup>+</sup>'s as K<sup>+</sup> candidates ("All" means all post-analysis cuts, pre-Cherenkov cuts)
 +
** &pi;<sup>-</sup>'s as K<sup>-</sup> not shown: identical due to symmetry.
 +
** Plots are shown for "Missing p, VertexP4 KinFit" only.
 
{| 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="75"| Recoil p
+
!width="75"| Detector
−
!width="350"| No KinFit
+
!width="350"| % of Pions That Fail Kaon Cut
−
!width="350"| P4 KinFit
+
!width="350"| Pions That Fail Kaon Cut
−
!width="350"| VertexP4 KinFit
+
!width="350"| Pions That Survive Kaon Cut
−
|-
+
|-  
−
! Missing
+
! No CKOV
−
| [[Image:Mattione_Update_09132012_MissingMass_MissingP_NoKinFit_Phi1850Bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_MissingP_P4KinFit_Phi1850Bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_MissingP_VertexP4KinFit_Phi1850Bkgnd.png|left|350px]]
+
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || NA || NA
−
|-
+
|-
−
! Not Missing
+
! He DC
−
| [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_NoKinFit_Phi1850Bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_P4KinFit_Phi1850Bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_VertexP4KinFit_Phi1850Bkgnd.png|left|350px]]
+
| 39.13% || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_FailedHeDC_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_PassedHeDC_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
 +
|-  
 +
! Gas Threshold
 +
| 46.58% || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_FailedGasThresh_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_PassedGasThresh_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
 +
|-
 +
! HBRICH
 +
| 53.69% || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_FailedRICH_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_PassedRICH_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
 +
|-
 +
! LHCb RICH
 +
| <span style="color:blue">88.03%</span> || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_FailedLHCbRICH_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_PassedLHCbRICH_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
  
−
* &phi;<sub>3</sub>(1850) Invariant Mass (Before/after KinFit where present)
+
=== bggen Background ===
 +
 
 +
* P vs. &theta; of &pi;<sup>+</sup>'s as K<sup>+</sup> candidates ("All" means all post-analysis cuts, pre-Cherenkov cuts)
 +
** &pi;<sup>-</sup>'s as K<sup>-</sup> not shown: identical due to symmetry.
 +
** Plots are shown for "Missing p, VertexP4 KinFit" only.
 
{| 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="75"| Recoil p
+
!width="75"| Detector
−
!width="350"| No KinFit
+
!width="350"| % of Pions That Fail Kaon Cut
−
!width="350"| P4 KinFit
+
!width="350"| Pions That Fail Kaon Cut
−
!width="350"| VertexP4 KinFit
+
!width="350"| Pions That Survive Kaon Cut
−
|-
+
|-  
−
! Missing
+
! No CKOV
−
| [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_NoKinFit_Phi1850Bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_P4KinFit_Phi1850Bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_VertexP4KinFit_Phi1850Bkgnd.png|left|350px]]
+
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || NA || NA
−
|-
+
|-
−
! Not Missing
+
! He DC
−
| [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_NoKinFit_Phi1850Bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_P4KinFit_Phi1850Bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_VertexP4KinFit_Phi1850Bkgnd.png|left|350px]]
+
| 29.32% || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_FailedHeDC_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_PassedHeDC_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
 +
|-  
 +
! Gas Threshold
 +
| 40.64% || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_FailedGasThresh_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_PassedGasThresh_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
 +
|-
 +
! HBRICH
 +
| 54.70% || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_FailedRICH_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_PassedRICH_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
 +
|-
 +
! LHCb RICH
 +
| <span style="color:blue">75.50%</span> || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_FailedLHCbRICH_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_PassedLHCbRICH_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
  
−
=== bggen Background ===
+
== Yield %'s & Signal / Background Ratios ==
 +
* ALL data are determined from E<sub>&gamma;</sub> = 8.5 - 9.0 GeV
  
−
* Missing Mass & Missing Mass Squared (Before/after KinFit where present)
+
=== Yield %'s ===
 +
* % of generated events remaining after all cuts
 
{| 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="75"| Recoil p
+
!width="200"| Detector / PID Cut
−
!width="350"| No KinFit
+
!width="300"| Missing p, No Fit
−
!width="350"| P4 KinFit
+
!width="300"| Missing p, P4 Fit
−
!width="350"| VertexP4 KinFit
+
!width="300"| Missing p, VertexP4 Fit
 +
!width="300"| No Missing, No Fit
 +
!width="300"| No Missing, P4 Fit
 +
!width="300"| No Missing, VertexP4 Fit
 +
|-
 +
! No CKOV
 +
| 25.7213% || 29.4203% || 27.1151% || 16.1225% || 12.8963% || 11.6797%
 
|-
 
|-
−
! Missing
+
! He DC <br style="clear:both;"/> K: 1 Exclusive
−
| [[Image:Mattione_Update_09132012_MissingMass_MissingP_NoKinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_MissingP_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMass_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 19.1337% || 21.2739% || 19.7511% || 11.7985% || 9.22241% || 8.37895%
 
|-
 
|-
−
! Not Missing
+
! Gas Threshold <br style="clear:both;"/> K: 1 Exclusive
−
| [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_NoKinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_MissingMassSq_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 23.3831% || 26.3302% || 24.3453% || 14.1469% || 11.0374% || 9.99005%
 +
|-
 +
! HBRICH <br style="clear:both;"/> K: 1 Exclusive
 +
| 25.2832% || 28.441% || 26.3715% || 15.6175% || 12.3001% || 11.1512%
 +
|-
 +
! LHCb RICH <br style="clear:both;"/> K: 1 Exclusive
 +
| 25.314% || 28.2104% || 26.1134% || 15.397% || 11.9929% || 10.8679%
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
  
−
* &phi;<sub>3</sub>(1850) Invariant Mass (Before/after KinFit where present)
+
=== Exclusive Kaon Cut Signal Yield Loss ===
 +
* % of pre-CKOV signal events LOST due to exclusive Kaon cut
 
{| 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="75"| Recoil p
+
!width="200"| Detector / PID Cut
−
!width="350"| No KinFit
+
!width="300"| Missing p, No Fit
−
!width="350"| P4 KinFit
+
!width="300"| Missing p, P4 Fit
−
!width="350"| VertexP4 KinFit
+
!width="300"| Missing p, VertexP4 Fit
 +
!width="300"| No Missing, No Fit
 +
!width="300"| No Missing, P4 Fit
 +
!width="300"| No Missing, VertexP4 Fit
 +
|-
 +
! He DC <br style="clear:both;"/> K: 1 Exclusive
 +
| 25.6113% || 27.6896% || 27.1582% || 26.8195% || 28.4879% || 28.2606%
 
|-
 
|-
−
! Missing
+
! Gas Threshold <br style="clear:both;"/> K: 1 Exclusive
−
| [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_NoKinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 9.09038% || 10.5033% || 10.2149% || 12.2539% || 14.4145% || 14.4665%
 
|-
 
|-
−
! Not Missing
+
! HBRICH <br style="clear:both;"/> K: 1 Exclusive
−
| [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_NoKinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_Phi1850Mass_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 1.70343% || 3.32855% || 2.74221% || 3.13199% || 4.62312% || 4.52537%
 +
|-
 +
! LHCb RICH <br style="clear:both;"/> K: 1 Exclusive
 +
| 1.58339% || 4.11241% || 3.69439% || 4.49982% || 7.00475% || 6.95065%
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
  
−
== Cherenkov Detector Comparison: genr8 &phi;<sub>3</sub>(1850) Background ==
+
=== Signal / Background Ratios ===
−
 
+
* Signal / Background Ratios
−
* P vs. &theta; of &pi;<sup>+</sup>'s as K<sup>+</sup> candidates ("All" means all post-analysis cuts, pre-Cherenkov cuts)
+
−
** &pi;<sup>-</sup>'s as K<sup>-</sup> not shown: identical due to symmetry.
+
 
{| 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="75"| &pi;<sup>+</sup> as K<sup>+</sup>
+
!width="200"| Detector / PID Cut
−
!width="350"| No Missing, P4 KinFit
+
!width="300"| Missing p, No Fit
−
!width="350"| No Missing, VertexP4 KinFit
+
!width="300"| Missing p, P4 Fit
−
!width="350"| p Missing, P4 KinFit
+
!width="300"| Missing p, VertexP4 Fit
−
!width="350"| p Missing, VertexP4 KinFit
+
!width="300"| No Missing, No Fit
 +
!width="300"| No Missing, P4 Fit
 +
!width="300"| No Missing, VertexP4 Fit
 
|-
 
|-
−
! All
+
! No CKOV
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_MissingP_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_NoMissing_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_NoMissing_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
+
| 0.014492 || 0.00975441 || 0.0195118 || 0.0598644 || 0.658394 || 1.07163
 
|-
 
|-
−
! He DC
+
! He DC <br style="clear:both;"/> K: Inclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_HeDC_MissingP_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_HeDC_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_HeDC_NoMissing_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_HeDC_NoMissing_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
+
| 0.0206374 || 0.0135749 || 0.0331994 || 0.108714 || 0.807195 || 1.13469
 
|-
 
|-
−
! Gas Thresh.
+
! Gas Threshold <br style="clear:both;"/> K: Inclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_GasThresh_MissingP_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_GasThresh_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_GasThresh_NoMissing_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_GasThresh_NoMissing_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
+
| 0.0242515 || 0.0154948 || 0.0433289 || 0.164763 || 0.903101 || 1.15175
 
|-
 
|-
−
! RICH (Yi)
+
! HBRICH <br style="clear:both;"/> K: Inclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_RICH_MissingP_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_RICH_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_RICH_NoMissing_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_RICH_NoMissing_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
+
| 0.0341672 || 0.0207034 || 0.0583342 || 0.246588 || 0.926807 || 1.15841
 
|-
 
|-
−
! LHCb RICH
+
! LHCb RICH <br style="clear:both;"/> K: Inclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_LHCbRICH_MissingP_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_LHCbRICH_MissingP_VertexP4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_LHCbRICH_NoMissing_P4KinFit_Phi1850bkgnd.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_LHCbRICH_NoMissing_VertexP4KinFit_Phi1850bkgnd.png|left|350px]]
+
| 0.0286688 || 0.0179156 || 0.0501617 || 0.211342 || 0.910341 || 1.15521
 +
|-
 +
! He DC <br style="clear:both;"/> K: 1 Exclusive
 +
| 0.0570553 || 0.0374778 || 0.0840888 || 0.245871 || 1.05639 || 1.23877
 +
|-
 +
! Gas Threshold <br style="clear:both;"/> K: 1 Exclusive
 +
| 0.0704103 || 0.0466157 || 0.115124 || 0.300781 || 1.0219 || 1.11751
 +
|-
 +
! HBRICH <br style="clear:both;"/> K: 1 Exclusive
 +
| 0.0968646 || 0.0627223 || 0.154364 || 0.40461 || 1.08359 || 1.14907
 +
|-
 +
! LHCb RICH <br style="clear:both;"/> K: 1 Exclusive
 +
| 0.0869476 || 0.0562729 || 0.137432 || 0.379736 || 1.10968 || 1.22991
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
  
−
== Cherenkov Detector Comparison: bggen Background ==
+
=== Signal / Background Ratios : Improvements Over No CKOV ===
−
 
+
* Detector Signal / Background Ratio (StBR) DIVIDED BY No CKOV StBR
−
* P vs. &theta; of &pi;<sup>+</sup>'s as K<sup>+</sup> candidates ("All" means all post-analysis cuts, pre-Cherenkov cuts)
+
−
** &pi;<sup>-</sup>'s as K<sup>-</sup> not shown: identical due to symmetry.
+
 
{| 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="75"| &pi;<sup>+</sup> as K<sup>+</sup>
+
!width="200"| Detector / PID Cut
−
!width="350"| No Missing, P4 KinFit
+
!width="300"| Missing p, No Fit
−
!width="350"| No Missing, VertexP4 KinFit
+
!width="300"| Missing p, P4 Fit
−
!width="350"| p Missing, P4 KinFit
+
!width="300"| Missing p, VertexP4 Fit
−
!width="350"| p Missing, VertexP4 KinFit
+
!width="300"| No Missing, No Fit
 +
!width="300"| No Missing, P4 Fit
 +
!width="300"| No Missing, VertexP4 Fit
 
|-
 
|-
−
! All
+
! He DC <br style="clear:both;"/> K: Inclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_MissingP_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_NoMissing_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_All_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 1.42405 || 1.39167 || 1.7015 || 1.816 || 1.22601 || 1.05884
 
|-
 
|-
−
! He DC
+
! Gas Threshold <br style="clear:both;"/> K: Inclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_HeDC_MissingP_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_HeDC_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_HeDC_NoMissing_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_HeDC_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 1.67344 || 1.5885 || 2.22065 || 2.75227 || 1.37167 || 1.07477
 
|-
 
|-
−
! Gas Thresh.
+
! HBRICH <br style="clear:both;"/> K: Inclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_GasThresh_MissingP_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_GasThresh_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_GasThresh_NoMissing_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_GasThresh_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 2.35766 || 2.12246 || 2.98968 || 4.11911 || 1.40768 || 1.08098
 
|-
 
|-
−
! RICH (Yi)
+
! LHCb RICH <br style="clear:both;"/> K: Inclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_RICH_MissingP_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_RICH_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_RICH_NoMissing_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_RICH_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 1.97825 || 1.83667 || 2.57083 || 3.53035 || 1.38267 || 1.07799
 
|-
 
|-
−
! LHCb RICH
+
! He DC <br style="clear:both;"/> K: 1 Exclusive
−
| [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_LHCbRICH_MissingP_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_LHCbRICH_MissingP_VertexP4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_LHCbRICH_NoMissing_P4KinFit_Phi1850bggen.png|left|350px]] || [[Image:Mattione_Update_09132012_PVsTheta_PiPlusPassKPlus_LHCbRICH_NoMissing_VertexP4KinFit_Phi1850bggen.png|left|350px]]
+
| 3.93702 || 3.84214 || 4.30963 || 4.10714 || 1.6045 || 1.15596
 +
|-
 +
! Gas Threshold <br style="clear:both;"/> K: 1 Exclusive
 +
| 4.85856 || 4.77893 || 5.90022 || 5.02437 || 1.55211 || 1.04281
 +
|-
 +
! HBRICH <br style="clear:both;"/> K: 1 Exclusive
 +
| 6.684 || 6.43015 || 7.91128 || 6.75878 || 1.6458 || 1.07227
 +
|-
 +
! LHCb RICH <br style="clear:both;"/> K: 1 Exclusive
 +
| 5.99969 || 5.76897 || 7.04351 || 6.34328 || 1.68544 || 1.1477
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
  
 +
<!--
 
== Yields %'s ==
 
== Yields %'s ==
 
* ALL yield %'s are determined in the signal region (track combinations with invariant mass outside of the signal region are ignored)
 
* ALL yield %'s are determined in the signal region (track combinations with invariant mass outside of the signal region are ignored)
 +
* NOTE: Yields of "No Missing" (both signal and background) are somewhat inflated (it looks like the proton track uncertainties are too large, causing a spike at 0 in the pulls and 1 in the confidence level)
  
 
=== genr8 &phi;<sub>3</sub>(1850) Signal Events ===
 
=== genr8 &phi;<sub>3</sub>(1850) Signal Events ===
Line 200: Line 273:
 
!width="350"| No Missing, VertexP4 KinFit
 
!width="350"| No Missing, VertexP4 KinFit
 
|-
 
|-
−
| a% || b% || c% || d% || e% || f%
+
| || 30.21% || 29.34% || || 10.17% || 9.73%
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
Line 206: Line 279:
 
* % of BAD reconstructed combos remaining (BAD combo: a combo where at least one track has the wrong THROWN PID)  
 
* % of BAD reconstructed combos remaining (BAD combo: a combo where at least one track has the wrong THROWN PID)  
 
{| 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="75"| Stage
+
!width="75"| Detector
 
!width="350"| Missing p, No KinFit
 
!width="350"| Missing p, No KinFit
 
!width="350"| Missing p, P4 KinFit
 
!width="350"| Missing p, P4 KinFit
Line 214: Line 287:
 
!width="350"| No Missing, VertexP4 KinFit
 
!width="350"| No Missing, VertexP4 KinFit
 
|-
 
|-
−
! w/o CKOV
+
! No CKOV
−
| a% || b% || c% || d% || e% || f%
+
| || <span style="color:red">11.08%</span> || <span style="color:green">6.56%</span> || || 10.04% || 8.11%
 
|-
 
|-
 
! He DC
 
! He DC
−
| a% || b% || c% || d% || e% || f%
+
| || 10.60% || 6.11% || || 9.90% || 7.98%
 
|-
 
|-
 
! Gas Thresh.
 
! Gas Thresh.
−
| a% || b% || c% || d% || e% || f%
+
| || 11.08% || 6.56% || || 10.04% || 8.11%
 
|-
 
|-
−
! RICH (Yi)
+
! HBRICH
−
| a% || b% || c% || d% || e% || f%
+
| || 10.59% || 6.10% || || 9.89% || 7.97%
 
|-
 
|-
 
! LHCb RICH
 
! LHCb RICH
−
| a% || b% || c% || d% || e% || f%
+
| || 9.90% || 5.44% || || 9.70% || 7.79%
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
Line 235: Line 308:
 
* % of reconstructed combos remaining
 
* % of reconstructed combos remaining
 
{| 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="75"| Stage
+
!width="75"| Detector
 
!width="350"| Missing p, No KinFit
 
!width="350"| Missing p, No KinFit
 
!width="350"| Missing p, P4 KinFit
 
!width="350"| Missing p, P4 KinFit
Line 243: Line 316:
 
!width="350"| No Missing, VertexP4 KinFit
 
!width="350"| No Missing, VertexP4 KinFit
 
|-
 
|-
−
! w/o CKOV
+
! No CKOV
−
| a% || b% || c% || d% || e% || f%
+
| || <span style="color:red">42.99%</span> || <span style="color:red">40.45%</span> || || <span style="color:green">1.01%</span> || <span style="color:green">0.31%</span>
 
|-
 
|-
 
! He DC
 
! He DC
−
| a% || b% || c% || d% || e% || f%
+
| || 15.47% || 14.28% || || 0.33% || 0.093%
 
|-
 
|-
 
! Gas Thresh.
 
! Gas Thresh.
−
| a% || b% || c% || d% || e% || f%
+
| || 4.96% || 4.50% || || 0.12% || 0.045%
 
|-
 
|-
−
! RICH (Yi)
+
! HBRICH
−
| a% || b% || c% || d% || e% || f%
+
| || 7.55% || 6.29% || || 0.094% || 0.018%
 
|-
 
|-
 
! LHCb RICH
 
! LHCb RICH
−
| a% || b% || c% || d% || e% || f%
+
| || 0.79% || <span style="color:blue">0.61%</span> || || 0.0062% || <span style="color:blue">0.00062%</span>
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
Line 264: Line 337:
 
* % of reconstructed combos remaining
 
* % of reconstructed combos remaining
 
{| 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="75"| Stage
+
!width="75"| Detector
 
!width="350"| Missing p, No KinFit
 
!width="350"| Missing p, No KinFit
 
!width="350"| Missing p, P4 KinFit
 
!width="350"| Missing p, P4 KinFit
Line 272: Line 345:
 
!width="350"| No Missing, VertexP4 KinFit
 
!width="350"| No Missing, VertexP4 KinFit
 
|-
 
|-
−
! w/o CKOV
+
! No CKOV
−
| a% || b% || c% || d% || e% || f%
+
| || <span style="color:red">3.56%</span> || <span style="color:green">1.86%</span> || || <span style="color:blue">0.021%</span> || <span style="color:blue">0.012%</span>
 
|-
 
|-
 
! He DC
 
! He DC
−
| a% || b% || c% || d% || e% || f%
+
| || 2.53% || 1.17% || || 0.017% || 0.011%
 
|-
 
|-
 
! Gas Thresh.
 
! Gas Thresh.
−
| a% || b% || c% || d% || e% || f%
+
| || 2.18% || 0.92% || || 0.016% || 0.011%
 
|-
 
|-
−
! RICH (Yi)
+
! HBRICH
−
| a% || b% || c% || d% || e% || f%
+
| || 1.61% || 0.72% || || 0.016% || 0.011%
 
|-
 
|-
 
! LHCb RICH
 
! LHCb RICH
−
| a% || b% || c% || d% || e% || f%
+
| || 1.19% || <span style="color:blue">0.44%</span> || || 0.014% || 0.010%
 
|}
 
|}
 
<br style="clear:both;"/>
 
<br style="clear:both;"/>
 +
-->

Latest revision as of 18:45, 26 September 2012

Reaction

  • γ p → φ3(1850), p
    • φ3(1850) → K+, K-
  • Final State: p, K+, K-
  • Events generated with: Γφ3(1850) = 87 MeV/c2, t-slope = 5.0, 50.0 < Vertex-Z (cm) < 80.0

Analysis Overview

  • For each q = +/- particle in the reaction, all detected q = +/- tracks are tested as to whether or not they are that particle
    • e.g. If a q = + track has PID FOM > 1% for both the π+ & K+: allow both combinations (DO NOT take the best FOM as true!)
  • Maximum of 8 tracks per event (to cut down on memory spikes).
  • The analysis (cuts/histing/kinfits) is then performed on each possible track combination (events are only cut if every one of their track combinations is cut):
    • Required 45.0 < Track-Vertex-Z (cm) < 85.0
    • EXTREMELY loose mass cuts around each mass peak (typically at the histogram edges): saves time by reducing # of kinematic fits to perform
    • Require the combined FOM for PID (χ2 and NDF of all tracks summed together) be > 1%
    • Where kinematic fit: Require that the confidence level from the kinematic fit be > 1%
    • Mass cuts as illustrated.

Mass Peaks & Kinematic Fitting : P Missing

  • NOTES:
    • Plots are shown for "VertexP4 KinFit" only.
    • Mass Plots: Pre-KinFit is Magenta, Post-KinFit is Teal
    • Kinematic Fit Confidence Level is zoomed in: spike at 0 confidence is well off the top of the plot
    • For the genr8 background, It wasn't possible to lineup every mass peak (without generating the recoil proton at a bogus mass), so the missing mass peak is a little off-center.
    • If a cut is shown, then all "Post-KinFit" plots after that cut include it.
Plot genr8 φ3(1850) Signal genr8 φ3(1850) Background bggen Background
Confidence Level
Mattione Update 09132012 KinFitConLev MissingP VertexP4KinFit Phi1850.png
Mattione Update 09132012 KinFitConLev MissingP VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 KinFitConLev MissingP VertexP4KinFit Phi1850bggen.png
Missing Mass
Mattione Update 09132012 MissingMass MissingP VertexP4KinFit Phi1850.png
Mattione Update 09132012 MissingMass MissingP VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 MissingMass MissingP VertexP4KinFit Phi1850bggen.png
φ3(1850) Mass
Mattione Update 09132012 Phi1850Mass MissingP VertexP4KinFit Phi1850.png
Mattione Update 09132012 Phi1850Mass MissingP VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 Phi1850Mass MissingP VertexP4KinFit Phi1850bggen.png


Mass Peaks & Kinematic Fitting: No Missing

  • NOTES:
    • Plots are shown for "VertexP4 KinFit" only.
    • Mass Plots: Pre-KinFit is Magenta, Post-KinFit is Teal
    • Kinematic Fit Confidence Level is zoomed in: spike at 0 confidence is well off the top of the plot
    • For the genr8 background, It wasn't possible to lineup every mass peak (without generating the recoil proton at a bogus mass), so the missing mass peak is a little off-center.
    • If a cut is shown, then all "Post-KinFit" plots after that cut include it.
Plot genr8 φ3(1850) Signal genr8 φ3(1850) Background bggen Background
Confidence Level
Mattione Update 09132012 KinFitConLev NoMissing VertexP4KinFit Phi1850.png
Mattione Update 09132012 KinFitConLev NoMissing VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 KinFitConLev NoMissing VertexP4KinFit Phi1850bggen.png
Missing Mass Squared
Mattione Update 09132012 MissingMass NoMissing VertexP4KinFit Phi1850.png
Mattione Update 09132012 MissingMass NoMissing VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 MissingMass NoMissing VertexP4KinFit Phi1850bggen.png
φ3(1850) Mass
Mattione Update 09132012 Phi1850Mass NoMissing VertexP4KinFit Phi1850.png
Mattione Update 09132012 Phi1850Mass NoMissing VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 Phi1850Mass NoMissing VertexP4KinFit Phi1850bggen.png


Cherenkov Detector Comparison

genr8 φ3(1850) Background

  • P vs. θ of π+'s as K+ candidates ("All" means all post-analysis cuts, pre-Cherenkov cuts)
    • π-'s as K- not shown: identical due to symmetry.
    • Plots are shown for "Missing p, VertexP4 KinFit" only.
Detector  % of Pions That Fail Kaon Cut Pions That Fail Kaon Cut Pions That Survive Kaon Cut
No CKOV
Mattione Update 09132012 PVsTheta PiPlusPassKPlus All MissingP VertexP4KinFit Phi1850bkgnd.png
 NA NA
He DC 39.13%
Mattione Update 09132012 PVsTheta PiPlusPassKPlus FailedHeDC MissingP VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 PVsTheta PiPlusPassKPlus PassedHeDC MissingP VertexP4KinFit Phi1850bkgnd.png
Gas Threshold 46.58%
Mattione Update 09132012 PVsTheta PiPlusPassKPlus FailedGasThresh MissingP VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 PVsTheta PiPlusPassKPlus PassedGasThresh MissingP VertexP4KinFit Phi1850bkgnd.png
HBRICH 53.69%
Mattione Update 09132012 PVsTheta PiPlusPassKPlus FailedRICH MissingP VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 PVsTheta PiPlusPassKPlus PassedRICH MissingP VertexP4KinFit Phi1850bkgnd.png
LHCb RICH 88.03%
Mattione Update 09132012 PVsTheta PiPlusPassKPlus FailedLHCbRICH MissingP VertexP4KinFit Phi1850bkgnd.png
Mattione Update 09132012 PVsTheta PiPlusPassKPlus PassedLHCbRICH MissingP VertexP4KinFit Phi1850bkgnd.png


bggen Background

  • P vs. θ of π+'s as K+ candidates ("All" means all post-analysis cuts, pre-Cherenkov cuts)
    • π-'s as K- not shown: identical due to symmetry.
    • Plots are shown for "Missing p, VertexP4 KinFit" only.
Detector  % of Pions That Fail Kaon Cut Pions That Fail Kaon Cut Pions That Survive Kaon Cut
No CKOV
Mattione Update 09132012 PVsTheta PiPlusPassKPlus All MissingP VertexP4KinFit Phi1850bggen.png
 NA NA
He DC 29.32%
Mattione Update 09132012 PVsTheta PiPlusPassKPlus FailedHeDC MissingP VertexP4KinFit Phi1850bggen.png
Mattione Update 09132012 PVsTheta PiPlusPassKPlus PassedHeDC MissingP VertexP4KinFit Phi1850bggen.png
Gas Threshold 40.64%
Mattione Update 09132012 PVsTheta PiPlusPassKPlus FailedGasThresh MissingP VertexP4KinFit Phi1850bggen.png
Mattione Update 09132012 PVsTheta PiPlusPassKPlus PassedGasThresh MissingP VertexP4KinFit Phi1850bggen.png
HBRICH 54.70%
Mattione Update 09132012 PVsTheta PiPlusPassKPlus FailedRICH MissingP VertexP4KinFit Phi1850bggen.png
Mattione Update 09132012 PVsTheta PiPlusPassKPlus PassedRICH MissingP VertexP4KinFit Phi1850bggen.png
LHCb RICH 75.50%
Mattione Update 09132012 PVsTheta PiPlusPassKPlus FailedLHCbRICH MissingP VertexP4KinFit Phi1850bggen.png
Mattione Update 09132012 PVsTheta PiPlusPassKPlus PassedLHCbRICH MissingP VertexP4KinFit Phi1850bggen.png


Yield %'s & Signal / Background Ratios

  • ALL data are determined from Eγ = 8.5 - 9.0 GeV

Yield %'s

  •  % of generated events remaining after all cuts
Detector / PID Cut Missing p, No Fit Missing p, P4 Fit Missing p, VertexP4 Fit No Missing, No Fit No Missing, P4 Fit No Missing, VertexP4 Fit
No CKOV 25.7213% 29.4203% 27.1151% 16.1225% 12.8963% 11.6797%
He DC
K: 1 Exclusive 		19.1337% 21.2739% 19.7511% 11.7985% 9.22241% 8.37895%
Gas Threshold
K: 1 Exclusive 		23.3831% 26.3302% 24.3453% 14.1469% 11.0374% 9.99005%
HBRICH
K: 1 Exclusive 		25.2832% 28.441% 26.3715% 15.6175% 12.3001% 11.1512%
LHCb RICH
K: 1 Exclusive 		25.314% 28.2104% 26.1134% 15.397% 11.9929% 10.8679%


Exclusive Kaon Cut Signal Yield Loss

  •  % of pre-CKOV signal events LOST due to exclusive Kaon cut
Detector / PID Cut Missing p, No Fit Missing p, P4 Fit Missing p, VertexP4 Fit No Missing, No Fit No Missing, P4 Fit No Missing, VertexP4 Fit
He DC
K: 1 Exclusive 		25.6113% 27.6896% 27.1582% 26.8195% 28.4879% 28.2606%
Gas Threshold
K: 1 Exclusive 		9.09038% 10.5033% 10.2149% 12.2539% 14.4145% 14.4665%
HBRICH
K: 1 Exclusive 		1.70343% 3.32855% 2.74221% 3.13199% 4.62312% 4.52537%
LHCb RICH
K: 1 Exclusive 		1.58339% 4.11241% 3.69439% 4.49982% 7.00475% 6.95065%


Signal / Background Ratios

  • Signal / Background Ratios
Detector / PID Cut Missing p, No Fit Missing p, P4 Fit Missing p, VertexP4 Fit No Missing, No Fit No Missing, P4 Fit No Missing, VertexP4 Fit
No CKOV 0.014492 0.00975441 0.0195118 0.0598644 0.658394 1.07163
He DC
K: Inclusive 		0.0206374 0.0135749 0.0331994 0.108714 0.807195 1.13469
Gas Threshold
K: Inclusive 		0.0242515 0.0154948 0.0433289 0.164763 0.903101 1.15175
HBRICH
K: Inclusive 		0.0341672 0.0207034 0.0583342 0.246588 0.926807 1.15841
LHCb RICH
K: Inclusive 		0.0286688 0.0179156 0.0501617 0.211342 0.910341 1.15521
He DC
K: 1 Exclusive 		0.0570553 0.0374778 0.0840888 0.245871 1.05639 1.23877
Gas Threshold
K: 1 Exclusive 		0.0704103 0.0466157 0.115124 0.300781 1.0219 1.11751
HBRICH
K: 1 Exclusive 		0.0968646 0.0627223 0.154364 0.40461 1.08359 1.14907
LHCb RICH
K: 1 Exclusive 		0.0869476 0.0562729 0.137432 0.379736 1.10968 1.22991


Signal / Background Ratios : Improvements Over No CKOV

  • Detector Signal / Background Ratio (StBR) DIVIDED BY No CKOV StBR
Detector / PID Cut Missing p, No Fit Missing p, P4 Fit Missing p, VertexP4 Fit No Missing, No Fit No Missing, P4 Fit No Missing, VertexP4 Fit
He DC
K: Inclusive 		1.42405 1.39167 1.7015 1.816 1.22601 1.05884
Gas Threshold
K: Inclusive 		1.67344 1.5885 2.22065 2.75227 1.37167 1.07477
HBRICH
K: Inclusive 		2.35766 2.12246 2.98968 4.11911 1.40768 1.08098
LHCb RICH
K: Inclusive 		1.97825 1.83667 2.57083 3.53035 1.38267 1.07799
He DC
K: 1 Exclusive 		3.93702 3.84214 4.30963 4.10714 1.6045 1.15596
Gas Threshold
K: 1 Exclusive 		4.85856 4.77893 5.90022 5.02437 1.55211 1.04281
HBRICH
K: 1 Exclusive 		6.684 6.43015 7.91128 6.75878 1.6458 1.07227
LHCb RICH
K: 1 Exclusive 		5.99969 5.76897 7.04351 6.34328 1.68544 1.1477



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