Difference between revisions of "Kinematic fitting of ρ and b1π events"
From GlueXWiki
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[[File:rho_prob.gif]] | [[File:rho_prob.gif]] | ||
<br style="clear: both" /> | <br style="clear: both" /> | ||
| − | <gallery caption="Pull distributions"> | + | <gallery caption="Pull distributions (CL>0.01)"> |
File:rho_pim_pull_px.gif | π- px pull | File:rho_pim_pull_px.gif | π- px pull | ||
File:rho_pim_pull_py.gif | π- py pull | File:rho_pim_pull_py.gif | π- py pull | ||
Revision as of 09:45, 4 April 2012
ρ events
- Generated 100000 events with genr8
- Require pπ+π-, each with tracking CL>0.001
- Use default PID algorithm
- 4C kinematic fit (nothing missing)
Missing mass squared for the reaction γp->pπ-π+. Red histogram is after a 0.01 CL cut on the result of kinematic fitting
π- px pull
π- py pull
π- pz pull
π+ px pull
π+ py pull
π+ pz pull
proton px pull
proton py pull
proton pz pull
b1π events
- Generated 100000 events with genr8
- Require p2π+2π-, each with tracking CL>0.001
- Use default PID algorithm
- 1C kinematic fit (missing π0)
Missing mass squared for the reaction γp->p2π+π-(X). Red histogram is after cutting on CL from kinematic fitting at 0.01.
Black histogram uses momenta from tracking reconstruction; red histogram uses refined momenta returned by kinematic fitting code
