[Sane-analysis] Abstract for SPIN 2016

Whitney R. Armstrong whit at jlab.org
Thu Jun 30 12:54:40 EDT 2016


Hi Everyone,

Here is the abstract I plan to submit for the SPIN 2016 conference.
Feedback is greatly appreciated. 

\title{The SANE Experiment and QCD Color Forces}

\begin{abstract}
QCD Confinement precludes experiments from resolving colored quarks in order to
understand the strong forces between them, however, polarized DIS experiments
uniquely provide a clean measurement of observables used in determining an
\emph{average color Lorentz force} on the struck quark. Within the operator
product expansion framework, the twist-3 matrix element, $d_2^p=\int 
x^2(2g_1+3g_2)dx$, is proportional to the average color Lorentz force on the
quark (moving in the infinite momentum frame) the instant after being struck by
a virtual photon. The Spin Asymmetries of the Nucleon Experiment (SANE) 
measured the proton's polarized spin structure functions $g_1$ and $g_2$
in a range of Bjorken $x$, $0.3 < x < 0.8$, where extraction of $d_2^p$ is most
sensitive. The data was taken from $Q^2$ equal to $2.5 GeV^2$ up to $6.5 GeV^2$ 
allowing for the $Q^2$ dependence of $d_2^p$ to be studied. In addition to 
presenting the latest results on spin structure functions, we will discuss the 
physics impact and extraction of $d_2^p$.
\end{abstract} 


Cheers,
Whit


-- 
Whitney R. Armstrong


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