GSI Forum: Analysis » No back propagation to IP for V

Home » PANDA » PandaRoot » Analysis » No back propagation to IP for V_0 reconstruction

Show: Today's Messages :: Polls :: Message Navigator

Re: No back propagation to IP for V_0 reconstruction [message #17638 is a reply to message #17635]

Thu, 04 December 2014 22:26

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

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

Attachment: test_4_plots_linear.png
(Size: 25.30KB, Downloaded 1341 times)
Attachment: test_4_plots_ratio.png
(Size: 25.66KB, Downloaded 1346 times)

Report message to a moderator

[Message index]

		No back propagation to IP for V_0 reconstruction By: donghee on Tue, 02 December 2014 15:29
		Re: No back propagation to IP for V_0 reconstruction By: StefanoSpataro on Tue, 02 December 2014 17:14
		Re: No back propagation to IP for V_0 reconstruction By: donghee on Tue, 02 December 2014 20:57
		Re: No back propagation to IP for V_0 reconstruction By: donghee on Wed, 03 December 2014 23:17
		Re: No back propagation to IP for V_0 reconstruction By: StefanoSpataro on Wed, 03 December 2014 23:21
		Re: No back propagation to IP for V_0 reconstruction By: donghee on Thu, 04 December 2014 10:47
		Re: No back propagation to IP for V_0 reconstruction By: StefanoSpataro on Thu, 04 December 2014 11:07
		Re: No back propagation to IP for V_0 reconstruction By: donghee on Thu, 04 December 2014 12:43
		Re: No back propagation to IP for V_0 reconstruction By: StefanoSpataro on Thu, 04 December 2014 13:23
		Re: No back propagation to IP for V_0 reconstruction By: donghee on Thu, 04 December 2014 22:26
		Re: No back propagation to IP for V_0 reconstruction By: StefanoSpataro on Sat, 06 December 2014 16:53
		Re: No back propagation to IP for V_0 reconstruction By: Ralf Kliemt on Thu, 04 December 2014 12:10
		Re: No back propagation to IP for V_0 reconstruction By: donghee on Thu, 04 December 2014 13:02

Previous Topic:	Vertex fitter for two consecutive decays
Next Topic:	Efficiency reduction of antiprotons above 20 degrees

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Tue May 19 21:00:21 CEST 2026

Total time taken to generate the page: 0.00541 seconds