Shell model half-lives for r-process N = 82 nuclei
نویسندگان
چکیده
منابع مشابه
Shell - model half - lives for r - process N = 82 nuclei
We have performed shell-model calculations of the half-lives and neutron-branching probabilities of the r-process waiting point nuclei at the magic neutron number N = 82. These new calculations use a larger model space than previous shell model studies and an improved residual interaction which is adjusted to recent spectroscopic data around A = 130. Our shell-model results give a good account ...
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The β-decay half-lives of 110 neutron-rich isotopes of the elements from _{37}Rb to _{50}Sn were measured at the Radioactive Isotope Beam Factory. The 40 new half-lives follow robust systematics and highlight the persistence of shell effects. The new data have direct implications for r-process calculations and reinforce the notion that the second (A≈130) and the rare-earth-element (A≈160) abund...
متن کاملTitle β - Decay Half - Lives of 110 Neutron - Rich Nuclei across the N = 82 Shell Gap : Implications for
Author(s) Lorusso, G; Nishimura, S; Xu, Z; Jungclaus, A; Shimizu, Y; Simpson, GS; Söderström, PA; Watanabe, H; Browne, F; Doornenbal, P; Gey, G; Jung, HS; Meyer, B; Sumikama, T; Taprogge, J; Vajta, Z; Wu, J; Baba, H; Benzoni, G; Chae, KY; Crespi, FCL; Fukuda, N; Gernhäuser, R; Inabe, N; Isobe, T; Kajino, T; Kameda, D; Kim, GD; Kim, YK; Kojouharov, I; Kondev, FG; Kubo, T; Kurz, N; Kwon, YK; Lane...
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First beta- and gamma-spectroscopic decay studies of the N=82 r-process "waiting-point" nuclide 130Cd have been performed at CERN/ISOLDE using the highest achievable isotopic selectivity. Several nuclear-physics surprises have been discovered. The first one is the unanticipatedly high energy of 2.12 MeV for the [pi g(9/2) multiply sign in circle nu g(7/2)] 1(+) level in 130In, which is fed by t...
متن کاملβ-decay half-lives of heavy neutron-rich nuclei in the N≈126 region
The astrophysical r-process is responsible for the synthesis of approximately half of the heavy nuclei in the Universe. One of the main problems we have to overcome to fully understand the observed r-process abundances is the lack of information on the nuclei participating in this process, in particular for the heaviest ones. The production of heavy neutron-rich nuclei in the laboratory has bee...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2007
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2007-10477-3