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Low density expansion and isospin dependence of nuclear energy functional: comparison between relativistic and Skyrme models

Abstract : In the present work we take the non relativistic limit of relativistic models and compare the obtained functionals with the usual Skyrme parametrization. Relativistic models with both constant couplings and with density dependent couplings are considered. While some models present very good results already at the lowest order in the density, models with non-linear terms only reproduce the energy functional if higher order terms are taken into account in the expansion.
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http://hal.in2p3.fr/in2p3-00143889
Contributor : Michel Lion <>
Submitted on : Friday, April 27, 2007 - 4:05:52 PM
Last modification on : Friday, June 12, 2020 - 6:02:15 PM

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C. Providencia, D. P. Menezes, L. Brito, P. Chomaz. Low density expansion and isospin dependence of nuclear energy functional: comparison between relativistic and Skyrme models. Physical Review C, American Physical Society, 2007, 76 (4), pp.044316. ⟨10.1103/PhysRevC.76.044316⟩. ⟨in2p3-00143889⟩

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