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Re: 4Cfit [message #16601 is a reply to message #16600]

Tue, 13 May 2014 16:01

StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino

first-grade participant

From: *rz.uni-frankfurt.de

In this way you are starting from a psi(4160) state, which has a mass well fixed, and evtgen does not takec ace that you set 8 GeV/c as momentum, it is automatically calculating the momentum from the psi mass.
( p=8.352 and energy=9.342). Then most probably 8 GeV/c are not enough to form such a state.

The alternative is to start from a pbarpSystem (in both sim and dec), and in such a case your 8 GeV/c will be set. But i think that with this low momentum evtgen will now have the psi(4160) mass.

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[Message index]

		[FIXED] 4Cfit By: Alexandros on Tue, 13 May 2014 14:20
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 14:25
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 14:42
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 14:46
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 14:47
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 14:50
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 14:53
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 15:23
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 15:28
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 15:57
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 16:01
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 17:12
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 17:14
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 17:23
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 17:26
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 17:44
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 17:45
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 17:54
		Re: 4Cfit By: StefanoSpataro on Tue, 13 May 2014 21:10
		Re: 4Cfit By: Alexandros on Tue, 13 May 2014 23:37
		Re: 4Cfit By: Alexandros on Wed, 14 May 2014 14:25
		Re: 4Cfit By: Klaus Götzen on Tue, 13 May 2014 15:13

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