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Re: No back propagation to IP for V_0 reconstruction [message #17638 is a reply to message #17635] Thu, 04 December 2014 22:26 Go to previous messageGo to previous message
donghee is currently offline  donghee
Messages: 385
Registered: January 2009
Location: Germnay
first-grade participant
From: *dip0.t-ipconnect.de
Hi Stefano,

Well, I think that a ratio plot can help us. all distributions are superimposed with linear scale and ratio defined by (yes BP - no BP) / (no BP) is added. one can see a clear transition at distance 5 cm. positive value means "yes BP" is more efficient, negative value means no BP has a better efficiency in some distance range.

index.php?t=getfile&id=8209&private=0
index.php?t=getfile&id=8210&private=0

I guess more longer lifetime of the Lambda (c*tau = 7.89 cm) can make a clear improvement at V0 reconstruction.
In contrast, K_s (c*tau = 2.68 cm) may be very difficult to get some improvement.
It is quite pitty, however I believe that V0 track finder will be realized soon.
Anyhow I will try to show same quality plots for lambda case.


Best wishes,
Donghee
 
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