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Re: EvtGen Output Fixed Point Precision [message #9005 is a reply to message #9003] Thu, 16 July 2009 17:15 Go to previous messageGo to previous message
StefanoSpataro is currently offline  StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino
first-grade participant

From: *to.infn.it
Hi,
in the class:

pgenerators/EvtGen/EvtgenBase/EvtStdHep.cc

you can find that the precision is set to 4.
If required one could even improve it and put it to 5, but I think the difference is neglibigle for our eyese. An approssimation of about 0.1 MeV is completely covered by our momentum resolution, at our scales.
If you can prove that precision 4 could give us problems and that we need to move it to 5, then this modification could be easily done.
 
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