Density slope of the nuclear symmetry energy from the neutron skin thickness of heavy nuclei

Journal Article · Sun Aug 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.024321· OSTI ID:21419434

Liewen, Chen ^[1]; Ming, Ko Che; Jun, Xu ^[2]; Baoan, Li ^[3]

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1. Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
2. Cyclotron Institute and Department of Physics and Astronomy, Texas A and M University, College Station, Texas 77843-3366 (United States)
3. Department of Physics and Astronomy, Texas A and M University-Commerce, Commerce, Texas 75429-3011 (United States)

Expressing explicitly the parameters of the standard Skyrme interaction in terms of the macroscopic properties of asymmetric nuclear matter, we show in the Skyrme-Hartree-Fock approach that unambiguous correlations exist between observables of finite nuclei and nuclear matter properties. We find that existing data on neutron skin thickness {Delta}r{sub np} of Sn isotopes give an important constraint on the symmetry energy E{sub sym}({rho}{sub 0}) and its density slope L at saturation density {rho}{sub 0}. Combining these constraints with those from recent analyses of isospin diffusion and the double neutron/proton ratio in heavy-ion collisions at intermediate energies leads to a more stringent limit on L approximately independent of E{sub sym}({rho}{sub 0}). The implication of these new constraints on the {Delta}r{sub np} of {sup 208}Pb as well as the core-crust transition density and pressure in neutron stars is discussed.

• OSTI ID: 21419434
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 2; Other Information: DOI: 10.1103/PhysRevC.82.024321; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
CORRELATIONS
DENSITY
HARTREE-FOCK METHOD
HEAVY ION REACTIONS
INTERACTIONS
ISOSPIN
LEAD 208
NEUTRON STARS
NEUTRONS
NUCLEAR MATTER
PROTONS
SATURATION
SKYRME POTENTIAL
SYMMETRY
THICKNESS
TIN ISOTOPES
APPROXIMATIONS
BARYONS
CALCULATION METHODS
DIMENSIONS
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
HADRONS
HEAVY NUCLEI
ISOTOPES
LEAD ISOTOPES
MATTER
NUCLEAR REACTIONS
NUCLEI
NUCLEON-NUCLEON POTENTIAL
NUCLEONS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
POTENTIALS
STABLE ISOTOPES
STARS