Difference between revisions of "Recoil proton reconstruction"
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== gamma p -> p pi0 decays == | == gamma p -> p pi0 decays == | ||
| + | |||
| + | * Recoil proton kinematics | ||
[[Image:p_pi_kin.png | 400px]] | [[Image:p_pi_kin.png | 400px]] | ||
| Line 60: | Line 62: | ||
# Ndof distribution (bottom left) | # Ndof distribution (bottom left) | ||
# Ndof versus proton momentum (bottom right) | # Ndof versus proton momentum (bottom right) | ||
| + | |||
| + | * Proton momentum and polar angle resolutions | ||
| + | [[Image:p_pi_mom_res.png | 220px]] | ||
| + | [[Image:p_pi_theta_resid.png | 220px]] | ||
Revision as of 21:30, 1 October 2011
gamma p -> p eta decays
- Recoil proton kinematics
- Proton polar angle versus proton momentum for generated events (top left)
- Momentum distributions for generated and reconstructed protons as a function of the p generated momentum (top right)
- Polar angle of reconstructed protons as a function of the proton generated momentum (middle left)
- Chisq/Ndof for reconstructed protons (middle right)
- Ndof distribution (bottom left)
- Ndof versus proton momentum (bottom right)
- Proton momentum residuals
No cuts
Chisq/Ndof < 10
- Proton momentum resolution and reconstruction bias
- Polar angle residuals
- Polar angle resolution
- Proton reconstruction efficiency
- Eta missing mass distribution
- Distributions were computed for different momentum ranges of
generated protons. Reconstructed proton tracks were required to satisfy chi2/ndof < 10. The top left plot represents all reconstructed protons.
gamma p -> p pi0 decays
- Recoil proton kinematics
- Proton polar angle versus proton momentum for generated events (top left)
- Momentum distributions for generated and reconstructed protons as a function of the p generated momentum (top right)
- Polar angle of reconstructed protons as a function of the proton generated momentum (middle left)
- Chisq/Ndof for reconstructed protons (middle right)
- Ndof distribution (bottom left)
- Ndof versus proton momentum (bottom right)
- Proton momentum and polar angle resolutions
