[Rivet] AGILe and PYTUNE

Gavin Hesketh hesketh at cern.ch
Fri Dec 3 16:53:20 GMT 2010


Dear AGILe authors,
I've just been playing around with the fortran pythia. I'm sure you know 
recent versions have the PYTUNE function, which allows you to select any 
of the "standard" tunes, by setting the MSTP(5) parameter.

But, if I want to use this feature while also varying one parameter that 
is part of that tune, eg by passing the following parameter file when I 
call agile-runmc:

MSTP(5) 105
PARP(64) 2

then my choice of PARP(64) is overwritten by PYTUNE. iirc, he way to 
avoid this is to set MSTP(5), call PYINIT, then set the other parameters.

I wondered if anyone had figured out how to do such a thing with agile, 
or if I simply can't use the MSTP(5)/PYTUNE functionality and have to 
set all the tune variables by hand?

thanks,
	Gavin


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