search

JeffersonLab / clasdoc-g12-procedures

Summary and analysis procedures documentation for the g12 experiment with CLAS at JLab.
The Unlicense
1 stars 1 forks source link

calib and eff - EC calib #51

Closed theodoregoetz closed 9 years ago

theodoregoetz commented 9 years ago

EC calibration and efficiency. You don’t say anything about energy calibration and energy response. You have quite a few dead strips. They not only affect efficiency but also affect energy response. How did you handle this? What procedures (corrections) were used to reconstruct photon energy and pi0 2gamma decay?

theodoregoetz commented 9 years ago

EC strip knock-out is to be done in each analysis individually.

leguofiu commented 9 years ago

The EC energy calibration quality can be demonstrated by the two photon invariant mass ($\pi^0$) as a function of run number (Fig. 38). The mean is very close to the expected value. The knock-out of bad and inefficient EC strip are summarized in Table 18.

leguofiu commented 9 years ago

I have added the g12_procedure_comments_response.tex (and .pdf ) files, and two plots that were used in that response. I also updated the section of systematics.tex, describing the g12 track-dependent inefficiency correction from MK.

Lei

Lei Guo Assistant Professor Physics Department Florida International University Miami, FL

email: leguo@fiu.edu mailto:leguo@fiu.edu or lguo@jlab.org Office:305-348-0234

On Jul 6, 2015, at 2:43 PM, Johann notifications@github.com wrote:

EC strip knock-out is to be done in each analysis individually.

— Reply to this email directly or view it on GitHub https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_JeffersonLab_clasdoc-2Dg12-2Dprocedures_issues_51-23issuecomment-2D118953587&d=AwMCaQ&c=1QsCMERiq7JOmEnKpsSyjg&r=hHzTZynKAcZP6Z9X2yfO7w&m=0ARj9r2k8FLf4UsIPwshWfKfHdO8BthLCO_sZLW9wns&s=G0xj_SWB2RQgdqemTAlLCgXjuH4sdhm_rcOcor--atA&e=.