[Color_transp] SIMC yields

[John Matter]

Thank you Holly!

- John


On Thu, Jul 11, 2019 at 11:50 PM Holly Szumila-Vance <hszumila at jlab.org>
wrote:

> Hi Deepak, John,
>
> Just to close the loop with our discussion today about the normfac values,
> it appears to be driven by the SHMS matrix elements not being the correct
> ones. However, my version of SIMC also did not pick up the various detector
> position tweaks from Carlos as of July 2018.
>
> 1. The big difference is that the SHMS should be using the following
> forward and recon matrix elements:
> shms-2017-26cm-monte_quads_p18_forward.dat
> shms-2017-26cm-monte_quads_p18_recon.dat
>
> These are specified both in shared/transp.f (forward) and
> shms/mc_shms_recon.f (recon). This is roughly the 0.3% difference in Q2=8
> hydrogen.
>
> 2. My versions of HMS and SHMS various detector position tweak differences
> with respect to planned vs surveyed did not include the changes by Carlos
> dated last July. These tweaks account for less than 0.008%.
>
> I did the testing in the directory that Deepak sent me to at:
> /work/hallc/e1206107/bhetuwal/simc_gfortran. I’ve updated this to include
> the new matrix elements if you wanted to run your simulations there for
> comparison.
>
> -Holly
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