<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body bgcolor="#ffffff" text="#000000">
<pre wrap="">Theory Center Seminar
Tuesday, June 8, 2010
12:30 p.m.
CEBAF Center, Room F224/225
<b class="moz-txt-star"><span class="moz-txt-tag"></span>QMC as a Model of Dense Matter: From Finite Nuclei to Hybrid Stars<span
class="moz-txt-tag"></span></b>
Jonathan Carroll
University of Adelaide, Australia
The QCD phase diagram at mu > 0, T \ge 0 is largely unknown and
particularly inaccessible to even lattice QCD simulations. One method
for investigating the mu >> 0 region is effective field theory using
mean-field meson potentials.
The EMC effect indicates that the quark structure of the nucleon is
modified in an essential way in a nuclear medium, and the Quark-Meson
Coupling (QMC) model provides a simple yet very successful description
of meson-baryon interactions with feedback to the quark structure of the
baryons.
With QMC predictions for finite nuclei -- and, in particular, finite
hypernuclei -- proving accurate, our attention turns to the equation of
state of dense matter and the structure of 'hybrid stars'; neutron stars
with proportions of hyperonic- or quark-matter. Using such an equation
of state as an input to the Tolman-Oppenheimer-Volkoff equation allows
us to construct models of stars and compare predicted mass and radius
with pulsar observations.
I will discuss the origins and predictions of QMC ranging from finite
nuclei to hybrid stars and our recent progress in extending this model
beyond the mean-field approximation to Hartree--Fock.
-----
A complete list of upcoming theory seminars and talks from previous
seminars are available from:
<a class="moz-txt-link-freetext"
href="http://www.jlab.org/%7Ethomasc/seminars/index.html">http://www.jlab.org/~thomasc/seminars/index.html</a></pre>
</body>
</html>