Chiral-symmetry restoration in clustered hadronic matter
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2003-11-01
Autores
Krein, G.
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Springer
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Chiral-symmetry restoration is usually discussed in the context of quark matter, a system of deconfined quarks. However, many systems like stable nuclei and neutron stars have quarks confined within nucleons. In the present paper we use a Fermi sea of three-quark clusters instead of a Fermi sea of deconfined quarks to investigate the in-medium quark condensate. We find that an enhancement of the chiral breaking in clustered matter as claimed in the literature is not a consequence of the clustering but rather dependent on the microscopic model dynamics.
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European Physical Journal A. New York: Springer-verlag, v. 18, n. 2-3, p. 511-513, 2003.