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Vz and multiplicity for run9 - BHT0*!BHT2

Updated on Mon, 2010-09-13 10:22. Originally created by trzeciak on 2010-09-08 15:50.

Vertex_z and multiplicity distributions for p+p 2009 with BHT0*VPDMB*!BHT2 trigger

Vertex_z distributions

  • Vertex_z after HT trigger cut with a gaussian fit (1)

 

  • Vertex_z after all cuts with a gaussian fit (2)

 

  • Vertex_z plots (3)

Multiplicity distributions

  • Multiplicity plot (4)

 

  • Multiplicity vs vertex_z for HT trigger  (5)
  Log scale
  • Multiplicity and # of tracks after kinetatic and geometric cuts (6)

 

  • Multiplicity vs # of tracks after kinetatic and geometric cuts (7)
  Log scale

 

 

On next plots multiplicity is a # of tracks after kinematic cuts for an event.

Plots are for events after all cuts.

 

  •   Multiplicity vs V_z (8)
  Log scale

 

 

  •  Invariant mass vs multiplicity (9)

 

 

  •  Multiplicity for J/Psi - mass range 2.8-3.3 GeV/c2 (10)

 

  •  Invariant mass vs V_z (11)

 

 

  •  V_z for J/Psi - mass range 2.8-3.3 GeV/c2 (12)

 

 

* after all cuts means that the distribution is for events with electron candidates (after kinematic, geometric and PID cuts).

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