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Incompressibility of finite fermionic systems: stable and exotic atomic nuclei

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.
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http://hal.in2p3.fr/in2p3-00819164
Contributor : Sophie Heurteau <>
Submitted on : Tuesday, April 30, 2013 - 11:53:08 AM
Last modification on : Wednesday, September 16, 2020 - 4:07:55 PM

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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, American Physical Society, 2013, 87, pp.064311. ⟨10.1103/PhysRevC.87.064311⟩. ⟨in2p3-00819164⟩

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