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Re: GENFIT for transverse momenta < 200 GeV/c strange?! [message #11219 is a reply to message #11218]

Mon, 22 November 2010 20:56

David Pohl
Messages: 18
Registered: October 2009
Location: FZ Juelich

occasional visitor

From: *pools.arcor-ip.net

Hi Everybody,

I found some cases where the helix prefit is still better than
the kalman fit. Again I used the same parameters but different
particles.

Kaons (efficiency loss, background):
index.php?t=getfile&id=6192&private=0

Protons (efficiency loss, worse result):
index.php?t=getfile&id=6193&private=0

The flags for the failed Kalman fits are in both cases:
90%: -1
10%: -2

@Lia: thank you for the short tutorial Razz

greetings,
David

Attachment: pt_reco_tpc_200_kaons.jpg
(Size: 61.78KB, Downloaded 406 times)
Attachment: pt_reco_tpc_200_protons.jpg
(Size: 60.00KB, Downloaded 361 times)

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[Message index]

		GENFIT for transverse momenta < 200 GeV/c strange?! By: David Pohl on Thu, 18 November 2010 11:48
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: Felix Boehmer on Thu, 18 November 2010 12:08
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: StefanoSpataro on Thu, 18 November 2010 12:33
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: Jens Sören Lange on Thu, 18 November 2010 13:53
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: StefanoSpataro on Thu, 18 November 2010 14:51
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: Jens Sören Lange on Thu, 18 November 2010 15:11
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: Lia Lavezzi on Thu, 18 November 2010 16:25
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: David Pohl on Thu, 18 November 2010 17:00
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: Lia Lavezzi on Thu, 18 November 2010 17:05
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: Lia Lavezzi on Fri, 19 November 2010 16:22
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: David Pohl on Sat, 20 November 2010 14:25
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: Lia Lavezzi on Mon, 22 November 2010 13:47
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: David Pohl on Mon, 22 November 2010 18:00
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: StefanoSpataro on Mon, 22 November 2010 18:27
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: David Pohl on Mon, 22 November 2010 18:45
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: Lia Lavezzi on Mon, 22 November 2010 19:30
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: David Pohl on Mon, 22 November 2010 20:56
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: StefanoSpataro on Mon, 22 November 2010 22:26
		Re: GENFIT for transverse momenta < 200 GeV/c strange?! By: David Pohl on Mon, 22 November 2010 22:38

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