Difference between revisions of "Kinematic fitting of ρ and b1π events"

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(Created page with "== ρ events == * Generated 100000 events with genr8 * Require pπ+π-, each with tracking CL>0.001 * 4C kinematic fit (nothing missing) File:rho_mm2.gif [[File:rho_pr...")
 
(b1π events)
Line 10: Line 10:
 
* Generated 100000 events with genr8
 
* Generated 100000 events with genr8
 
* Require p2π+2π-, each with tracking CL>0.001
 
* Require p2π+2π-, each with tracking CL>0.001
 +
** Use default PID algorithm
 
* 1C kinematic fit (missing π0)
 
* 1C kinematic fit (missing π0)
[[File:b1pi_mm2.gif]]
+
[[File:b1pi_mm2.gif | left | frame | Missing mass squared for the reaction γp->p2π+π-(X). Red histogram is after cutting on CL from kinematic fitting at 0.01.]]
 
[[File:b1pi_prob.gif]]
 
[[File:b1pi_prob.gif]]
[[File:b1pi_omega_mass.gif]]
+
 
 +
[[File:b1pi_omega_mass.gif | left | frame | Black histogram uses momenta from tracking reconstruction; red histogram uses refined momenta returned by kinematic fitting code]]

Revision as of 09:14, 4 April 2012

ρ events

  • Generated 100000 events with genr8
  • Require pπ+π-, each with tracking CL>0.001
  • 4C kinematic fit (nothing missing)

Rho mm2.gif Rho prob.gif


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.

B1pi prob.gif

Black histogram uses momenta from tracking reconstruction; red histogram uses refined momenta returned by kinematic fitting code