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Theory Center Seminar
<br>
Monday, April 5, 2010
<br>
1:00 p.m.
<br>
CEBAF Center, Room L104
<br>
Coffee at 12:45 p.m.
<br>
<br>
<b>Nuclear Forces From Chiral EFT: The Unfinished Business
</b><br>
<br>
Ruprecht Machleidt <br>
University of Idaho
<br>
<br>
In recent years, there has been substantial progress in the derivation
<br>
of nuclear forces from chiral effective field theory (EFT). Accurate
two-nucleon
<br>
forces have been constructed at next-to-next-to-next-to-leading order
(N3LO)
<br>
and applied (together with three-nucleon forces at N2LO) to nuclear
few- and many-body
<br>
systems - with a fair deal of success. This may suggest that the
80-year old nuclear
<br>
force problem has finally been cracked. Not so! Some pretty basic
issues
<br>
are still unresolved. In my talk, I will focus on the two most pressing
ones,
<br>
namely, subleading many-body forces and the proper renormalization of
the
<br>
two-nucleon potential.
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