Kaon condensation in a NambuJonaLasinio model at high density
Abstract
We demonstrate a fully selfconsistent microscopic realization of a kaoncondensed colorflavor locked state (CFLK{sup 0}) within the context of a meanfield NambuJonaLasinio (NJL) model at high density. The properties of this state are shown to be consistent with the QCD lowenergy effective theory once the proper gauge neutrality conditions are satisfied, and a simple matching procedure is used to compute the pion decay constant, which agrees with the perturbative QCD result. The NJL model is used to compare the energies of the CFLK{sup 0} state to the parity even CFL state, and to determine locations of the metal/insulator transition to a phase with gapless fermionic excitations in the presence of a nonzero hypercharge chemical potential and a nonzero strange quark mass. The transition points are compared with results derived previously via effective theories and with partially selfconsistent NJL calculations. We find that the qualitative physics does not change, but that the transitions are slightly lower.
 Authors:
 Center for Theoretical Physics, Department of Physics, MIT, Cambridge, Massachusetts 02139 (United States)
 Publication Date:
 OSTI Identifier:
 20713846
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.72.094032; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COLOR MODEL; COMPARATIVE EVALUATIONS; EXCITATION; FLAVOR MODEL; GAUGE INVARIANCE; HYPERCHARGE; KAONS; MEANFIELD THEORY; PARITY; PARTICLE DECAY; PERTURBATION THEORY; PIONS; POTENTIALS; QUANTUM CHROMODYNAMICS; REST MASS; S QUARKS
Citation Formats
Forbes, Michael McNeil. Kaon condensation in a NambuJonaLasinio model at high density. United States: N. p., 2005.
Web. doi:10.1103/PhysRevD.72.094032.
Forbes, Michael McNeil. Kaon condensation in a NambuJonaLasinio model at high density. United States. doi:10.1103/PhysRevD.72.094032.
Forbes, Michael McNeil. Tue .
"Kaon condensation in a NambuJonaLasinio model at high density". United States.
doi:10.1103/PhysRevD.72.094032.
@article{osti_20713846,
title = {Kaon condensation in a NambuJonaLasinio model at high density},
author = {Forbes, Michael McNeil},
abstractNote = {We demonstrate a fully selfconsistent microscopic realization of a kaoncondensed colorflavor locked state (CFLK{sup 0}) within the context of a meanfield NambuJonaLasinio (NJL) model at high density. The properties of this state are shown to be consistent with the QCD lowenergy effective theory once the proper gauge neutrality conditions are satisfied, and a simple matching procedure is used to compute the pion decay constant, which agrees with the perturbative QCD result. The NJL model is used to compare the energies of the CFLK{sup 0} state to the parity even CFL state, and to determine locations of the metal/insulator transition to a phase with gapless fermionic excitations in the presence of a nonzero hypercharge chemical potential and a nonzero strange quark mass. The transition points are compared with results derived previously via effective theories and with partially selfconsistent NJL calculations. We find that the qualitative physics does not change, but that the transitions are slightly lower.},
doi = {10.1103/PhysRevD.72.094032},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}

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