Probing the symmetry energy and the degree of isospin equilibrium

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dc.creatorLi, Qingfeng
dc.creatorLi, Zhuxia
dc.creatorStoecker, Horst
dc.date2006-03-21
dc.date.accessioned2026-07-07T10:30:46Z
dc.date.available2026-07-07T10:30:46Z
dc.descriptionThe rapidity dependence of the single- and double- neutron to proton ratios of nucleon emission from isospin-asymmetric but mass-symmetric reactions Zr+Ru and Ru+Zr at energy range $100 \sim 800$ A MeV and impact parameter range $0\sim 8$ fm is investigated. The reaction system with isospin-asymmetry and mass-symmetry has the advantage of simultaneously showing up the dependence on the symmetry energy and the degree of the isospin equilibrium. We find that the beam energy- and the impact parameter dependence of the slope parameter of the double neutron to proton ratio ($F_D$) as function of rapidity are quite sensitive to the density dependence of symmetry energy, especially at energies $E_b\sim 400$ A MeV and reduced impact parameters around 0.5. Here the symmetry energy effect on the $F_D$ is enhanced, as compared to the single neutron to proton ratio. The degree of the equilibrium with respect to isospin (isospin mixing) in terms of the $F_D$ is addressed and its dependence on the symmetry energy is also discussed.
dc.description10 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/nucl-th/0603050
dc.identifierhttp://arxiv.org/abs/nucl-th/0603050
dc.identifierPhys.Rev.C73:051601,2006
dc.identifierdoi:10.1103/PhysRevC.73.051601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178235
dc.subjectNuclear Theory
dc.titleProbing the symmetry energy and the degree of isospin equilibrium
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