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Re: Weird STT reconstruction: efficiency depends on charge [message #5649 is a reply to message #5647]

Thu, 17 January 2008 13:14

Andrew Savchenko
Messages: 6
Registered: January 2008

occasional visitor

From: *ikp.kfa-juelich.de

I have just performed the same test for protons and result is similar:
polar angle for negatively charged particles (antiprotons) is reconstructed just for approximately 50% of events. And it is not reconstructed at all for positively charged particles (protons), only small noise is present.

Corresponding plots are attached.

Attachment: p-.png
(Size: 8.79KB, Downloaded 1068 times)
Attachment: p+.png
(Size: 9.95KB, Downloaded 1002 times)

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[Message index]

		Weird STT reconstruction: efficiency depends on charge By: Andrew Savchenko on Wed, 16 January 2008 19:03
		Re: Weird STT reconstruction: efficiency depends on charge By: Andrew Savchenko on Thu, 17 January 2008 13:14
		Re: Weird STT reconstruction: efficiency depends on charge By: StefanoSpataro on Thu, 17 January 2008 13:17
		Re: Weird STT reconstruction: efficiency depends on charge By: Andrew Savchenko on Thu, 17 January 2008 15:23
		Re: Weird STT reconstruction: efficiency depends on charge By: Pablo Genova on Thu, 17 January 2008 15:50
		Re: Weird STT reconstruction: efficiency depends on charge By: Andrew Savchenko on Thu, 17 January 2008 17:19
		Re: Weird STT reconstruction: efficiency depends on charge By: Pablo Genova on Mon, 21 January 2008 15:03
		Re: Weird STT reconstruction: efficiency depends on charge By: Andrew Savchenko on Mon, 21 January 2008 15:49
		Re: Weird STT reconstruction: efficiency depends on charge By: Pablo Genova on Mon, 21 January 2008 16:52
		Re: Weird STT reconstruction: efficiency depends on charge By: Pablo Genova on Wed, 23 January 2008 17:07
		Re: Weird STT reconstruction: efficiency depends on charge By: Andrew Savchenko on Fri, 25 January 2008 17:01
		Re: Weird STT reconstruction: efficiency depends on charge By: Pablo Genova on Fri, 25 January 2008 17:33

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