Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Symmetry energy at subnuclear densities deduced from nuclear masses   We examine how nuclear masses are related to the density dependence of the
symmetry energy. Using a macroscopic nuclear model we calculate nuclear masses
in a way dependent on the equation of state of asymmetric nuclear matter. We
find by comparison with empirical two-proton separation energies that a smaller
symmetry energy at subnuclear densities, corresponding to a larger density
symmetry coefficient L, is favored. This tendency, which is clearly seen for
nuclei that are neutron-rich, nondeformed, and light, can be understood from
the property of the surface symmetry energy in a compressible liquid-drop
picture.

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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
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The categories of this paper are: eess
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The categories of this paper are: comp-gas