[b1_ana] Fwd: [Jlab-seminars] Theory Center Seminar

[Karl Slifer]

---------- Forwarded message ----------
From: *Mary Fox*
Date: Thursday, January 9, 2014
Subject: [Jlab-seminars] Theory Center Seminar
To: jlab-seminars at jlab.org


 Theory Center Seminar
Monday, Jan. 13, 2014
1:00 p.m. (coffee at 12:45 p.m.)
CEBAF Center, Room L102


Jerry Miller
University of Washington, Seattle

*Pionic and Hidden-Color, Six-Quark Contributions to the Deuteron b1
Structure Function*

The b1 structure function is an observable feature of a spin-1 system
sensitive to non-nucleonic
components of the target nuclear wave function. The contributions of
exchanged pions in the
deuteron are estimated and found to be of measurable size for small values
of x. A simple model
for a hidden-color, six-quark configurations (with~ 0.15% probability to
exist in the deuteron)
is proposed and found to give substantial contributions for values of
x>0.2. Good agreement with
Hermes data is obtained. Predictions are made for an upcoming JLab
experiment. The Close & Kumano
sum rule is investigated and found to be a useful guide to understanding
various possible effects
that may contribute.



-- 
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Karl J. Slifer
Assistant Professor
Department of Physics
University of New Hampshire
Telephone : 603-722-0695
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