[d2n-analysis-talk] A1n in the Resonance Region

[David Flay]

Hi all,

We have been thinking of including our resonance results for A1n in the A1
paper, where we assume duality (an observation claimed by two PRL papers
for the proton and neutron spin structure functions at large Q^2) -- that
is, we treat the average resonance data above the Delta as DIS data, and
apply nuclear corrections in a consistent way.  We have rebinned the 4-
and 5-pass results into three equally-spaced bins in x, corresponding to x
= 0.548, 0.648 and 0.748, and have averaged the results together, weighted
by their statistical errors.  See the attached plot.

This would be good to add to the A1 paper, as it would strengthen the
physics of the paper; in particular, it would give some predictive power
in the large x region ahead of the planned JLab 12 GeV measurements in
Hall A and C.  Once 12 GeV data are available our duality assumption could
be checked again.

What are your thoughts?

Best regards,

David

-------------------------------------------------
David Flay
Physics Department
Temple University
Philadelphia, PA 19122

office: Barton Hall, BA319
phone: (215) 204-1331

e-mail: flay at jlab.org
            flay at temple.edu

website: http://www.jlab.org/~flay
              http://quarks.temple.edu
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