Chang-Hwan Lee (Pusan)
"Kaon Condensation `a la Vector Manifestation"
Building on, and extending, the result of a higher-order in-medium
chiral perturbation theory combined with renormalization group
arguments and a variety of observations of the vector manifestation of
Harada-Yamawaki hidden local symmetry theory, we obtain a surprisingly
simple description of kaon condensation by fluctuating around the
"vector manifestation (VM)" fixed point identified to be the chiral
restoration point. Our development establishes that strangeness
condensation takes place at about 3 n_0 where n_0 is nuclear matter
density. This result depends only on the renoramlization-group (RG)
behavior of the vector interactions, other effects involved in
fluctuating about the bare vacuum in so many previous calculations
being "irrelevant" in the RG about the fixed point. Our results have
major effects on the collapse of neutron stars into black holes.
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