[G14_run] Simulation

Reinhard Schumacher schumacher at cmu.edu
Thu May 25 13:02:06 EDT 2017


Hi Nick,

Jamie’s analysis was for the “E” observable.   To a good (enough?) approximation, all acceptance issues cancel when forming this quantity from the CLAS data.   For the recently published data for the pi- p reaction, there were no GSIM calculations done by any of the three parallel analysis efforts.   We explicitly assumed that the cancellation approximation is sufficient.   And further, recall that g14 was the last hurrah for the CLAS spectrometer, and in many ways it was in miserable shape: many many dead channels.   I do not recall that we have even tried to itemize and model all the flaws for Monte Carlo study.

Cheers,
Reinhard
_____________________________________________________________
Reinhard Schumacher         Department of Physics, 5000 Forbes Ave.
Carnegie Mellon University, Pittsburgh, PA 15213, U.S.A.
phone: 412-268-5177           web: www-meg.phys.cmu.edu/~schumach <https://urldefense.proofpoint.com/v2/url?u=http-3A__www-2Dmeg.phys.cmu.edu_-7Eschumach&d=DwIFaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=S2ZLWreG80lNvNTOLF-ZWA&m=7t-MZ4PFueduIXl_0jfhuRDQ6aHchOhxknBzKH4uMYw&s=8oc41-HfDb37UfwuLOvcXSU7BLDf95sCHw91JAzJVV8&e= >
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> On May 25, 2017, at 6:00 AM, Nicholas Zachariou <nickzachariou at gmail.com> wrote:
> 
> Hi all, 
> 
> I have generated some signal and background data for Jamies Analysis and wanted to run them through GSIM to illustrate that with our cuts minimal background events survive and do a quick study of the weird structure below the missing-mass of signal events that I think comes from kaons that decay. I was wondering if you can point to me the following:
> g14-approved version of GSIM
> ffread card to use
> appropriate run num for constants
> gpp variables
> and cook tcl file for user_ana
> 
> Cheers, 
> Nick
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> G14_run at jlab.org
> https://mailman.jlab.org/mailman/listinfo/g14_run

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