[Jlab-seminars] Theory Center Seminar

[Mary Fox]

Theory Center Seminar
Mon., March 26, 2012
CEBAF Center, Room L104
1:00 p.m. (coffee at 12:45 p.m.)

*Nuclear Symmetry Energy and Evolution of Proto-Neutron Star*

Gang Shen
LANL

The phenomenon of neutron rich matter plays a central role in many areas 
of nuclear astrophysics.
One of the important unknowns is the nuclear symmetry energy and its 
density dependence, which
defines how different the neutron rich matter is from symmetric nuclear 
matter. It determines the
biggest size of a neutron star formed in nature and the neutron radius 
of Pb208, which is currently
measured at JLab. I will outline our program to generate a set of 
nuclear equations of state and
consistent neutrino opacity for the study of core collapse supernova. As 
a first application, I will
illustrate a newly found connection between the nuclear symmetry energy 
and the evolution of
proto-neutron star: it may have observable signature in supernova 
neutrino spectra. This spectra
can be measured in large water detectors such as SuperK.

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