Isospin-asymmetric nuclear matter
نویسندگان
چکیده
منابع مشابه
Chemical and mechanical instability in hot isospin - asymmetric nuclear matter
Using phenomenological equations of state, we study the chemical and mechanical instabilities in hot isospin-asymmetric nuclear matter. Both instabilities are found to depend strongly on the isospin asymmetry of the nuclear matter. For a chemically and mechanically stable asymmetric nuclear matter, a lower neutron excess is found in the liquid phase than in the gas phase. Furthermore, the neutr...
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We analyze the chiral limit in dense isospin-asymmetric nuclear matter. It is shown that the pseudo-Goldstone modes in this system are qualitatively different from the case of isospin-symmetric matter. On leave from Department of Physics and Astronomy, University of Maryland, College Park, MD 20742
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We calculate the density-dependent spin-isospin asymmetry energy J(kf ) of nuclear matter in the three-loop approximation of chiral perturbation theory. The interaction contributions to J(kf ) originate from one-pion exchange, iterated one-pion exchange, and irreducible two-pion exchange with no, single, and double virtual ∆-isobar excitation. We find that the approximation to 1π-exchange and i...
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Lie-Wen Chen,1,2 Bao-Jun Cai,1 Che Ming Ko,3 Bao-An Li,4 Chun Shen,1 and Jun Xu3 1Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China 2Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, People’s Republic of China 3Cyclotron Institute and Physics Department, Texas A&M University, College Station, Texa...
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The liquid-gas phase transition in hot neutron-rich nuclear matter is investigated within a self-consistent thermal model using different interactions with or without isospin and/or momentum dependence. The boundary of the phase-coexistence region is shown to be sensitive to the density dependence of the nuclear symmetry energy as well as the isospin and momentum dependence of the nuclear inter...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2014
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.89.024611