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simpleEvtGen for fast simulation limited (?) [message #5886] Fri, 15 February 2008 13:09 Go to next message
Aleksandra Biegun is currently offline  Aleksandra Biegun
Messages: 64
Registered: May 2007
Location: Groningen
continuous participant
From: *KVI.nl
Hi Klaus, hi Stefano,

when I run ./simpleEvtGen 'psi(2S)' psi2s_jpsi2pi.dec 50000 (according to Klaus presentation), the program only run up event 48173 (every time it stops at the same event) and I have such message:

EvtGen:event Number 47900
EvtGen:event Number 48000
EvtGen:event Number 48100
***************************************************************
*
* PHOENE: Too much Bremsstrahlung required, PRSOFT = -1.445127
* Fatal Error Message, I stop this Run !
*
*
***************************************************************


Do you know why?

Cheers,
Ola.


Aleksandra Biegun
University of Groningen/KVI
Zernikelaan 25, 9747 AA Groningen
tel. +31 50 363 3630
fax. +31 50 363 4003
Re: simpleEvtGen for fast simulation limited (?) [message #5972 is a reply to message #5886] Tue, 26 February 2008 11:50 Go to previous messageGo to next message
Aleksandra Biegun is currently offline  Aleksandra Biegun
Messages: 64
Registered: May 2007
Location: Groningen
continuous participant
From: *KVI.nl
Hi Stefano, hi Klaus, hi Others,

I checked simpleEvtGen with rev. 2039 and I still have similar problem (I reportet 15.02.08), that the EvtGen stops at some point, but now, it stops even earlier (??), at 7034 event..

EvtGen:event Number 6900
EvtGen:event Number 7000
************************************************************************ ********
* *
* PHOENE: Too much Bremsstrahlung required, PRSOFT = -0.108210 *
* Fatal Error Message, I stop this Run ! *
* *

************************************************************************ ********

I checked pandaEvtGen and testEvtGen (also for rev. 2039) and with these I do not have such problem (I run 100000 events).

Any idea?

Ciao,
Ola.



Aleksandra Biegun
University of Groningen/KVI
Zernikelaan 25, 9747 AA Groningen
tel. +31 50 363 3630
fax. +31 50 363 4003
Re: simpleEvtGen for fast simulation limited (?) [message #7445 is a reply to message #5886] Mon, 20 October 2008 14:44 Go to previous messageGo to next message
Oscar Reinecke is currently offline  Oscar Reinecke
Messages: 4
Registered: April 2008
Location: TU-Dresden
occasional visitor
From: *phy.tu-dresden.de
Yes the same thing happened to me as well:


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Oscar
Re: simpleEvtGen for fast simulation limited (?) [message #7446 is a reply to message #5972] Mon, 20 October 2008 15:19 Go to previous messageGo to next message
Oscar Reinecke is currently offline  Oscar Reinecke
Messages: 4
Registered: April 2008
Location: TU-Dresden
occasional visitor
From: *phy.tu-dresden.de
Never mind, I fixed it. Apparently PHOTOS can not handle decays into six particle final states, so I disabled it by adding 'noPhotos' to the decay file.

Best regards

Oscar

[Updated on: Mon, 20 October 2008 15:30]

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Re: simpleEvtGen for fast simulation limited (?) [message #7447 is a reply to message #7445] Mon, 20 October 2008 15:21 Go to previous message
Jens Sören Lange is currently offline  Jens Sören Lange
Messages: 193
Registered: June 2005
first-grade participant
From: *physik.uni-giessen.de
Hi all,

this seems like the problem is coming from PHOTOS.

and it means that PHOTOS was switched on in the EvtGen decay.

like this

Decay J/psi
1.000 e+ e- PHOTOS VLL;
Enddecay
End


can you maybe remove the word "PHOTOS" and try again?

Soeren
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