Spectroscopy Near the N=20 Shell Closure: $\beta$-n Decay Studies of $^{33}$Mg and $^{35}$Al

Abstract : An experimental spectroscopic investigation of some neutron rich Mg and Al isotopes around the shell closure N=20 has been performed. The delayed neutron and $\gamma$ spectra, following the $\beta$-decay of $^{33}$Mg and $^{35}$Al have been measured using the delayed neutron detector array TONNERRE coupled with high efficiency EXOGAM clover detectors, a LEPS detector and eight low-energy neutron detectors. A detailed analysis of such spectra allows one to construct the level schemes of their daughters, $^{32,33)$Al and $^{34,35}$Si. The resulting spectroscopic information will provide stringent tests of large scale shell model calculations including np - nh excitations aimed at the understanding of the structural effects occurring in this region.
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http://hal.in2p3.fr/in2p3-00087109
Contributeur : Michel Lion <>
Soumis le : vendredi 21 juillet 2006 - 13:05:23
Dernière modification le : mardi 19 février 2019 - 11:13:18

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J.C. Angélique, C. Timis, S. Piétri, N.L. Achouri, P. Baumann, et al.. Spectroscopy Near the N=20 Shell Closure: $\beta$-n Decay Studies of $^{33}$Mg and $^{35}$Al. Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR, Sep 2005, Isle of Kos, Greece. pp.134-138, ⟨10.1063/1.2200913⟩. ⟨in2p3-00087109⟩

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