π- from h- analysis

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π- from h- analysis

π- from h- analysisTomasz Palczewski.A. Soltan Institute for Nuclear Studies.WarsawPoland.


Run 5599• 7240 events processedwrong events:• 472 number of events with vertexx=0x=0• 484 number of events with vertexy=0• 391 number of events with vertexx=0 andvertexy=0• 2216 number of events with iflagflag!=0( 30 % of all events )


Events cutsTo do list:event->GetPrimaryVertex()>GetPrimaryVertex()->GetNTrkFit()>GetNTrkFit()event->GetPrimaryVertex()>GetPrimaryVertex()->GetNTrkOut()>GetNTrkOut()


Events cuts


Tracks cuts• To do list:• track must origin from the main vertex• abs(track->GetBx())GetBy())


Conclusions• Work in progress• To do list:• Define the best events and tracks cuts• MC simulation• Acceptance


Thank you

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