[Eg1_run] Abstract for APS April - Invited Talk

[nguler at jlab.org]

Hello,
The latest abstract based on the comments from Sebastian and Ralph. Thank you
very much.
Question on the author list: Should I put CLAS Collaboration only or should I
put the list of the authors from Rob's paper? I was thinking something like
below:
N. Guler, R.G. Fersch, P. Bosted, A. Deur, K. Griffioen, S.E. Kuhn, R.
Minehart,4, Y. Prok
(The CLAS Collaboration)

\title{Spin structure functions of the proton and the neutron at low to
moderate Q$^2$}
\author{Nevzat Guler (Author list....?)}
\date{April 14, 2013}

\begin{document}
\maketitle
\begin{abstract}
The physics program at the Jefferson Lab has collected a large amount of data
on the spin structure functions of the nucleon by using polarized electron
beam directed on polarized NH$_3$ and ND$_3$ targets. In these experiments,
the virtual photon asymmetry $A_1$ and the spin structure function $g_1$ were
measured with an unprecedented precision in a large kinematic range of 0.01
GeV$^2$ $<$ Q$^2$ $<$ 6.0 GeV$^2$ and 1.08 GeV $< W <$ 3.0 GeV. The data help
us to better understand the spin structure of the nucleon, especially in the
transition region between hadronic and quark-gluon degrees of freedom.
Therefore, it will be possible to put limits on quark-hadron duality, test
pQCD predictions for the quark polarization at large $x$, perform more precise
calculations of higher-twist matrix elements in the framework of the Operator
Product Expansion and get a glimpse of A$_1$ at high $x$. In addition, using
available proton and deuteron data together and utilizing a new unfolding
technique, the spin structure functions for the neutron in the resonance
region are extracted.
\end{abstract}
\end{document}
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