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Journal Articles Physical Review C Year : 2013

Incompressibility of finite fermionic systems: stable and exotic atomic nuclei

N. Paar
  • Function : Author
D. Vretenar
  • Function : Author
Li-Gang Cao
  • Function : Author
H. Sagawa
  • Function : Author
G. Colo
  • Function : Author

Abstract

The incompressibility of finite fermionic systems is investigated using analytical approaches and microscopic models. The incompressibility of a system is directly linked to the zero-point kinetic energy of constituent fermions, and this is a universal feature of fermionic systems. In the case of atomic nuclei, this implies a constant value of the incompressibility in medium-heavy and heavy nuclei. The evolution of nuclear incompressibility along Sn and Pb isotopic chains is analyzed using global microscopic models, based on both non-relativistic and relativistic energy functionals. The result is an almost constant incompressibility in stable nuclei and systems not far from stability, and a steep decrease in nuclei with pronounced neutron excess, caused by the emergence of a soft monopole mode in neutron-rich nuclei.

Dates and versions

in2p3-00819164 , version 1 (30-04-2013)

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E. Khan, N. Paar, D. Vretenar, Li-Gang Cao, H. Sagawa, et al.. Incompressibility of finite fermionic systems: stable and exotic atomic nuclei. Physical Review C, 2013, 87, pp.064311. ⟨10.1103/PhysRevC.87.064311⟩. ⟨in2p3-00819164⟩
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