Transition to delta matter from hot, dense nuclear matter within a relativistic mean field formulation of the nonlinear sigma and omega model

  • An investigation of the transition to delta matter is performed based on a relativistic mean field formulation of the nonlinear sigma and omega model. We demonstrate that in addition to the Delta-meson coupling, the occurrence of the baryon resonance isomer also depends on the nucleon-meson coupling. Our results show that for the favored phenomenological value of m* and K, the Delta isomer exists at baryon density ~ 2–3 p0 if beta=1.31 is adopted. For universal coupling of the nucleon and Delta, the Delta density at baryon density ~ 2–3 p0 and temperature ~ 0.4–0.5 fm-1 is about normal nuclear matter density, which is in accord with a recent experimental finding.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Zhuxia Li, Guangjun Mao, Yizhong Zhuo, Walter GreinerGND
Parent Title (German):Physical Review. C
Document Type:Article
Date of Publication (online):2006/07/14
Year of first Publication:1997
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/07/14
Page Number:6
First Page:1570
Last Page:1575
Source:Physical Review C 56(3), S. 1570-1575 (1997), ©1997 The American Physical Society,
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:10.00.00 THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for experimental methods and instrumentation for elementary-particle physics, see section 29) / 13.00.00 Specific reactions and phenomenology / 13.75.-n Hadron-induced low- and intermediate-energy reactions and scattering (energy (less-than-or-equal-to) 10 GeV) (for higher energies, see 13.85.-t) / 13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons, etc.) (for <i>N</i>-<i>N</i> interactions in nuclei, see 21.30.-x)
20.00.00 NUCLEAR PHYSICS / 24.00.00 Nuclear reactions: general / 24.10.-i Nuclear reaction models and methods / 24.10.Cn Many-body theory
20.00.00 NUCLEAR PHYSICS / 25.00.00 Nuclear reactions: specific reactions / 25.75.-q Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions) / 25.75.Dw Particle and resonance production
Licence (German):License LogoDeutsches Urheberrecht