Difference between revisions of "Recoil proton reconstruction"

From GlueXWiki
Jump to: navigation, search
Line 13: Line 13:
  
  
* Proton momentum residuals *
+
* Proton momentum residuals  
  
 
[[Image:p_eta_presid_no_cut.png | 220px]]
 
[[Image:p_eta_presid_no_cut.png | 220px]]
Line 20: Line 20:
 
Chisq/Ndof < 10
 
Chisq/Ndof < 10
  
== Proton momentum resolution and reconstruction bias ==
+
 
 +
 
 +
* Proton momentum resolution and reconstruction bias
 
[[Image:p_eta_mom_res.png | 220px]]
 
[[Image:p_eta_mom_res.png | 220px]]
  
== Polar angle residuals ==
+
 
 +
 
 +
* Polar angle residuals
 
[[Image:p_eta_theta_resid.png | 220px]]
 
[[Image:p_eta_theta_resid.png | 220px]]
  
== Polar angle resolution ==
+
 
 +
 
 +
* Polar angle resolution  
 
[[Image:p_eta_theta_res.png | 220px]]
 
[[Image:p_eta_theta_res.png | 220px]]
  
== Proton reconstruction efficiency ==
+
 
 +
 
 +
* Proton reconstruction efficiency ==
 
[[Image:p_eta_rec_eff.png | 220px]]
 
[[Image:p_eta_rec_eff.png | 220px]]

Revision as of 15:19, 29 September 2011

gamma p -> p eta decays

  • Recoil proton kinematics

P eta kin.png

  1. Proton polar angle versus proton momentum for generated events (top left)
  2. Momentum distributions for generated and reconstructed protons as a function of the p generated momentum (top right)
  3. Polar angle of reconstructed protons as a function of the proton generated momentum (middle left)
  4. Chisq/Ndof for reconstructed protons (middle right)
  5. Ndof distribution (bottom left)
  6. Ndof versus proton momentum (bottom right)


  • Proton momentum residuals

P eta presid no cut.png No cuts P eta presid chi10.png Chisq/Ndof < 10


  • Proton momentum resolution and reconstruction bias

P eta mom res.png


  • Polar angle residuals

P eta theta resid.png


  • Polar angle resolution

P eta theta res.png


  • Proton reconstruction efficiency ==

P eta rec eff.png