Europhys. Lett.
Volume 47, Number 6, September 1999
Page(s) 663 - 667
Section Nuclear physics
Published online 01 September 2002
DOI: 10.1209/epl/i1999-00440-4

Europhys. Lett, 47 (6), pp. 663-667 (1999)

Nuclear matter properties from nuclear masses

K. C. Chung, C. S. Wang and A. J. Santiago

Departamento de Física Nuclear e Altas Energias, Instituto de Física
Universidade do Estado do Rio de Janeiro - Rio de Janeiro-RJ 20559-900, Brazil

(received 23 June 1999; accepted 13 July 1999)

PACS. 21.65${\rm +f}$ - Nuclear matter.
PACS. 24.30Cz - Giant resonances.


Two approximate formulas, based on the energy density functional formalism, show that the nuclear symmetry energy J and the density symmetry coefficient L depend essentially on $\mu_{\rm n}-\overline{\mu}_{\rm p}$, while the volume energy a1 and the incompressibility coefficient K0 depend essentially on $\mu_{\rm n}
N+\overline{\mu}_{\rm p} Z-2E_{\rm N}$, where $\overline{\mu}_{\rm p}=\mu_{\rm p}-\partial
E_{\rm C}/\partial Z$, $\mu_{\rm n}$ and $\mu_{\rm p}$ are the neutron and the proton chemical potentials, $E_{\rm N}$ the nuclear energy, and $E_{\rm C}$the Coulomb energy. The data fit to the measured nuclear masses gives $a_1=15.3\;{\rm MeV}$, $K_0=226\;{\rm MeV}$, $J=28.2\;{\rm MeV}$, and $L=70.7\;{\rm MeV}$.


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