Hi, Chi (again)!
Looking through DGen.cc I think pol(0) is pe, pol(1) is pz, pol(2) is
pzz... Am I right?
The previous questions (about convention for writing helicity and target
spin orientation) to the CODA stream are still valid.
Thanks!
Adrian
On Fri, 13 Jun 2003, Adrian T Sindile wrote:
> Hi, Chi!
> I think I am able to write MC helicity and spin info to the CODA stream.
> However, to make sure the same reconstruction classes can be used in the
> same way for Chris' epel and DGen, I need to know which array element you
> use for helicity and which for target spin orientation...
>
> I am asking about the array POL(3) which is used by WRITECODAVERTEX()...
> IS POL(1) used for beam polarization (with +/- indicating the helicity)
> and POL(2) used for longitudinal target polarization (with +/- used for
> spin orientation along the holding field)? Then POL(3) would be used for
> transversal target polarization... but I do not need that for hydrogen.
>
> Please tell me if that is the convention, or if you have a different one!
> Thanks!
>
> Adrian
>
> PS: DGen will not be affected by these changes, the end result will be
> that we will have helicity and target spin info when running Chris's epel
> generator, like we have now for DGen.
>
> -------------------------------
> Adrian Sindile
> Research Assistant
> Nuclear Physics Group
> University of New Hampshire
> phone: (603)862-1691
> FAX: (603)862-2998
> email: asindile@alberti.unh.edu
> http://einstein.unh.edu/~adrian/
>
>
>
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