Incompressibility of finite fermionic systems: Stable and exotic atomic nuclei

Khan, E. and Paar, Nils and Vretenar, Dario and Cao, Li-Gang and Sagawa, H. and Colo, G. (2013) Incompressibility of finite fermionic systems: Stable and exotic atomic nuclei. Physical Review C, 87 (6). pp. 64311-6. ISSN 0556-2813

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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 nonrelativistic 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.

Item Type: Article
Keywords: incompressibility, fermionic systems, exotic nuclei
Date: June 2013
Subjects: NATURAL SCIENCES > Physics > Nuclear Physics
Additional Information: Copyright (2013) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-1191005-1010
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 09 Jun 2014 10:52
Last Modified: 23 Feb 2016 15:25

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