[d2n-analysis-talk] Multi-Carbon Target With Transversity's Matrix Elements

[Brad Sawatzky]

All the data are there, the report was just published late.  I think
Diana was looking into this a while ago -- check in with her.

-- Brad

On Wed, 28 Apr 2010, David Flay wrote:

> On Wed, Apr 28, 2010 at 10:43 AM, Brad Sawatzky <brads at jlab.org> wrote:
> 
> >  I presume the LHRS angle was set to 45 degrees?  Are the survey data on
> > the LHRS incorported into our DB?
> >
> 
> Yes, the LHRS was set to 44.985 deg.:
> http://hallaweb.jlab.org/news/minutes/Survey_Reports/DT_A1235.pdf
> 
> I found this page for survey reports:
> http://hallaweb.jlab.org/news/minutes/Survey_Reports/Survey_Reports.html
> 
> I was thinking that the information we need is from the reports from 8/3/09
> (Spectrometer Pointing -- has entries from March -- August), 2/6/09 (Target
> Ladder entry).  Do you remember the most recent survey report <just before>
> d2n?  From looking at this page, it seems I need to look at a few different
> ones to gather the proper information.
> 
> I was just talking with Jin concerning an offset with phi.  He suggested to
> look at Hydrogen elastic runs and see where the elastic peak falls.  Then to
> manually adjust the 0th matrix element for phi.  He mentioned I could try
> with dp as well, but it may be best to play with phi first.
> 
> As for the offsets (Dx,Dy) referring to the offset of the central ray from
> the center of the HCS, I'm starting to work on that -- they should go in the
> db_run.dat file.
> 
> Dave
> 
-- 
Brad Sawatzky, PhD <brads at jlab.org>  -<>-  Jefferson Lab / Hall C / C111
Ph: 757-269-5947  -<>-  Fax: 757-269-5235  -<>- Pager: brads-page at jlab.org
The most exciting phrase to hear in science, the one that heralds new
  discoveries, is not "Eureka!" but "That's funny..."   -- Isaac Asimov