[Gdh_lowq2] URGENT! APS abstract !?!

[K Slifer]

I think its a reasonable goal, and Krishna (or you) should submit the
abstract.

-Karl

---
Karl J. Slifer
Assistant Professor
Department of Physics
University of New Hampshire




On Mon, Jul 2, 2012 at 12:55 PM, Sebastian Kuhn <skuhn at odu.edu> wrote:

>  Dear EG4ers,
>
> I know this comes very (too?) late in the game, but do you think it would
> be acceptable to submit the following abstract to the DNP Fall meeting (
> http://physics.ucr.edu/dnp2012/ ) this year? Unfortunately the deadline
> is TODAY - so we either have to submit it right away or the point will be
> moot.
>
> I realize that this is a bit of a gamble, since we don't have any results
> YET. However, I do honestly believe that Krishna can have something (very
> preliminary) ready in time for October 24. If he can't go, I will be at the
> meeting anyway. Of course, if anyone else wants to go, we can definitely
> discuss this AFTER today. For now, we need to keep a place holder in the
> program if we want to present anything.
>
> Please give us your feedback, comments, changes... ASAP. - Sebastian (also
> for Krishna)
>
> ----
>
> Deuteron Spin Structure function g1(x) at low Q2****
>
> ** **
>
> The spin structure function g1 and its moments provide crucial information
> on the internal structure of the nucleon. At low momentum transfer Q2, one
> can study the transition from partonic (quark-gluon) to hadronic
> (nucleonic) degrees of freedom and test effective theories based on QCD,
> for instance Chiral Perturbation Theory (ChPT). As Q2 goes to zero, the
> first moment of g1 is constrained by the GDH sum rule and its ChPT
> extensions, which makes measurements of g1 in this region uniquely
> interesting.****
> As part of the large program of spin structure function measurements with
> CLAS at Jefferson Lab, the EG4 experiment measured the cross section
> difference between electron beam and  proton/deuteron target spins parallel
> and antiparallel to each other (and the beam direction) down to small
> scattering angles (approx. 7 degrees). From these differences, g1 can be
> extracted, with minimal model uncertainties, down to Q2 as low as 0.01
> GeV2. We will give a brief overview of the experiment and its analysis, and
> present first preliminary results on the deuteron spin structure function
> g1d.
>
>
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