GSI Forum
GSI Helmholtzzentrum für Schwerionenforschung

Home » PANDA » PandaRoot » Analysis » Lambda Lambdabar simulations
Re: Lambda Lambdabar simulations [message #16352 is a reply to message #16338] Thu, 17 April 2014 14:56 Go to previous messageGo to previous message
donghee is currently offline  donghee
Messages: 385
Registered: January 2009
Location: Germnay
first-grade participant
From: *kph.uni-mainz.de
Dear Stefano,

I want to show you theta distribution for anti-proton and pi+ from the antilambda decay in the lab frame.
Each 2D plots show that thata_antiproton vs theta_pion in the lab frame for the case of generated and reconstructed.

I used LambdabarLambdaPol 1.64GeV model and a perfect detector, which covers from 0 to 160 degree with perfect resolution and efficiency.
In each panel, you can find the dependence of theta_{lab} distribution on the different cos(theta)_{CM} region.
I think that Panel2(Right up) is quite important clue for the acceptance lost.
In lab frame, theta between 0 and 7 degree we could not reconstruct at all, due to V0 decay topology.

index.php?t=getfile&id=7814&private=0
index.php?t=getfile&id=7815&private=0

Best wishes,
Donghee
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Vertex Fitter in Fast simulation
Next Topic: [FIXED] Problems with analysis: PidAlgoMvd not found in Tree
Goto Forum:
  


Current Time: Thu Mar 28 16:26:53 CET 2024

Total time taken to generate the page: 0.00867 seconds