Experimental level densities of atomic nuclei

Abstract : It is almost 80 years since Hans Bethe described the level density as a non-interacting gas of protons and neutrons. In all these years, experimental data were interpreted within this picture of a fermionic gas. However, the renewed interest of measuring level density using various techniques calls for a revision of this description. In particular, the wealth of nuclear level densities measured with the Oslo method favors the constant-temperature level density over the Fermi-gas picture. From the basis of experimental data, we demonstrate that nuclei exhibit a constant-temperature level density behavior for all mass regions and at least up to the neutron threshold.
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European Physical Journal A, EDP Sciences, 2015, 51, pp.170. 〈10.1140/epja/i2015-15170-4〉
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Contributeur : Sophie Heurteau <>
Soumis le : jeudi 28 mai 2015 - 11:00:53
Dernière modification le : jeudi 1 février 2018 - 01:28:39

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M. Guttormsen, M. Aiche, F. L. Bello Garrote, L. A. Bernstein, D. L. Bleuel, et al.. Experimental level densities of atomic nuclei. European Physical Journal A, EDP Sciences, 2015, 51, pp.170. 〈10.1140/epja/i2015-15170-4〉. 〈in2p3-01157547〉

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