First Measurement of Several β-Delayed Neutron Emitting Isotopes Beyond N=126

Abstract : The β-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with β-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb, and Bi in the mass region N≳126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear microscopic and phenomenological models in reproducing the high-energy part of the β-decay strength distribution. This provides important constraints on global theoretical models currently used in r-process nucleosynthesis.
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Article dans une revue
Physical Review Letters, American Physical Society, 2016, 117 (1), pp.012501. 〈10.1103/PhysRevLett.117.012501〉
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http://hal.in2p3.fr/in2p3-01357341
Contributeur : Sophie Heurteau <>
Soumis le : lundi 29 août 2016 - 16:28:19
Dernière modification le : jeudi 11 janvier 2018 - 06:12:41

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R. Caballero-Folch, C. Domingo-Pardo, J. Agramunt, A. Algora, F. Ameil, et al.. First Measurement of Several β-Delayed Neutron Emitting Isotopes Beyond N=126. Physical Review Letters, American Physical Society, 2016, 117 (1), pp.012501. 〈10.1103/PhysRevLett.117.012501〉. 〈in2p3-01357341〉

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