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Title: Constraints on the {omega}- and {sigma}-meson coupling constants with dibaryons

Abstract

The effect of narrow dibaryon resonances on basic nuclear matter properties and on the structure of neutron stars is investigated in mean-field theory and in relativistic Hartree approximation. The existence of massive neutron stars imposes constraints on the coupling constants of the {omega} and {sigma} mesons with dibaryons. In the allowed region of the parameter space of the coupling constants, a Bose condensate of the light dibaryon candidates d{sub 1}(1920) and d{sup {prime}}(2060) is stable against compression. This proves the stability of the ground state of heterophase nuclear matter with a Bose condensate of light dibaryons. {copyright} {ital 1997} {ital The American Physical Society}

Authors:
; ;  [1];  [2]
  1. Institut fuer Theoretische Physik, Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)
  2. Institute for Theoretical and Experimental Physics, B.Cheremushkinskaya 25, 117259 Moscow (Russia)
Publication Date:
OSTI Identifier:
550408
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review, C; Journal Volume: 56; Journal Issue: 3; Other Information: PBD: Sep 1997
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; DIBARYONS; COUPLING CONSTANTS; OMEGA PARTICLES; SIGMA PARTICLES; MESON-BARYON INTERACTIONS; MESONS; RESONANCE; NUCLEAR MATTER; NEUTRON STARS; MEAN-FIELD THEORY; HARTREE-FOCK METHOD; BOSE-EINSTEIN CONDENSATION; LIMITING VALUES

Citation Formats

Faessler, A., Buchmann, A.J., Krivoruchenko, M.I., and Krivoruchenko, M.I. Constraints on the {omega}- and {sigma}-meson coupling constants with dibaryons. United States: N. p., 1997. Web. doi:10.1103/PhysRevC.56.1576.
Faessler, A., Buchmann, A.J., Krivoruchenko, M.I., & Krivoruchenko, M.I. Constraints on the {omega}- and {sigma}-meson coupling constants with dibaryons. United States. doi:10.1103/PhysRevC.56.1576.
Faessler, A., Buchmann, A.J., Krivoruchenko, M.I., and Krivoruchenko, M.I. Mon . "Constraints on the {omega}- and {sigma}-meson coupling constants with dibaryons". United States. doi:10.1103/PhysRevC.56.1576.
@article{osti_550408,
title = {Constraints on the {omega}- and {sigma}-meson coupling constants with dibaryons},
author = {Faessler, A. and Buchmann, A.J. and Krivoruchenko, M.I. and Krivoruchenko, M.I.},
abstractNote = {The effect of narrow dibaryon resonances on basic nuclear matter properties and on the structure of neutron stars is investigated in mean-field theory and in relativistic Hartree approximation. The existence of massive neutron stars imposes constraints on the coupling constants of the {omega} and {sigma} mesons with dibaryons. In the allowed region of the parameter space of the coupling constants, a Bose condensate of the light dibaryon candidates d{sub 1}(1920) and d{sup {prime}}(2060) is stable against compression. This proves the stability of the ground state of heterophase nuclear matter with a Bose condensate of light dibaryons. {copyright} {ital 1997} {ital The American Physical Society}},
doi = {10.1103/PhysRevC.56.1576},
journal = {Physical Review, C},
number = 3,
volume = 56,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 1997},
month = {Mon Sep 01 00:00:00 EDT 1997}
}