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Re: Psi3770 study with run981 tpc mode [message #12332 is a reply to message #12320]

Fri, 22 July 2011 19:24

StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino

first-grade participant

From: *14-87-r.retail.telecomitalia.it

Several questions came to my mind.
a) Are you identifying pions and kaons from mc? Have you checked that they are primaries? And are yiou sure the the mccorrelation is done properly? (i.e., you could have misplaced trees, in particular if you are summing upo files)
b) Have you applied a selection around D mass? To take away bad combinations with bad momenta
c) Why you assume the ndf is 1? I think at this stage one should not use any chi2 cut, considering that we have to understand the errors before.

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[Message index]

		Psi3770 study with run981 tpc mode By: donghee on Wed, 20 July 2011 15:01
		Re: Psi3770 study with run981 tpc mode By: StefanoSpataro on Thu, 21 July 2011 10:14
		Re: Psi3770 study with run981 tpc mode By: donghee on Thu, 21 July 2011 11:57
		Re: Psi3770 study with run981 tpc mode By: donghee on Thu, 21 July 2011 14:44
		Re: Psi3770 study with run981 tpc mode By: StefanoSpataro on Fri, 22 July 2011 19:24
		Re: Psi3770 study with run981 tpc mode By: donghee on Mon, 25 July 2011 11:43
		Re: Psi3770 study with run981 tpc mode By: donghee on Thu, 21 July 2011 15:40
		Re: Psi3770 study with run981 tpc mode By: StefanoSpataro on Fri, 22 July 2011 19:16
		Re: Psi3770 study with run981 tpc mode By: donghee on Tue, 26 July 2011 11:14
		Re: Psi3770 study with run981 tpc mode By: StefanoSpataro on Sun, 31 July 2011 00:06
		Re: Psi3770 study with run981 tpc mode By: donghee on Mon, 01 August 2011 04:13
		Re: Psi3770 study with run981 tpc mode By: StefanoSpataro on Mon, 01 August 2011 07:45

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