Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2002-06-19
Physics
Nuclear Physics
Nuclear Theory
10 pages, ws-procs9x6.cls (included), 2 eps figures, to appear in the Proceedings of the Joint CSSM/JHF Workshop, Adelaide, Ma
Scientific paper
Quark-nuclear matter (QNM) is a many-body system containing hadrons and deconfined quarks. Starting from a microscopic quark-meson coupling (QMC) Hamiltonian with a density dependent quark-quark interaction, an effective quark-hadron Hamiltonian is constructed via a mapping procedure. The mapping is implemented with a unitary operator such that composites are redescribed by elementary-particle field operators that satisfy canonical commutation relations in an extended Fock space. Application of the unitary operator to the microscopic Hamiltonian leads to effective, hermitian operators that have a clear physical interpretation. At sufficiently high densities, the effective Hamiltonian contains interactions that lead to quark deconfinement. The equation of state of QNM is obtained using standard many-body techniques with the effective quark-hadron Hamiltonian. At low densities, the model is equivalent to a QMC model with confined quarks. Beyond a critical density, when quarks start to deconfine, the equation of state predicted for QNM is softer than the QMC equation of state with confined quarks.
Krein Gastao
Vizcarra Victor E.
No associations
LandOfFree
Equation of state of quark-nuclear matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Equation of state of quark-nuclear matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equation of state of quark-nuclear matter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-458770