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Collectivity in 41S

Abstract : Yrast states in the neutron-rich 41S nucleus have been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of 36S ions with a thin 208Pb target. The magnetic spectrometer, PRISMA, and the γ-ray array, CLARA, were used in the measurements. γ-ray transitions of energy 449 and 638 keV were observed. Results from published intermediate-energy Coulomb excitation measurements in combination with those from the present work have led to the construction of a new 41S level scheme. Proposed Jπ values are based on experimental observation and on model-dependent arguments. The level scheme and published electromagnetic transition probabilities are discussed within the context of state-of-art shell-model calculations using the SDPF-U effective interaction. In contrast with the excellent agreement observed in earlier published work, here there are significant discrepancies between experiment and the results of shell-model calculations.
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http://hal.in2p3.fr/in2p3-00616805
Contributor : Sophie Heurteau <>
Submitted on : Thursday, August 25, 2011 - 10:37:49 AM
Last modification on : Wednesday, September 16, 2020 - 4:07:54 PM

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Z.M. Wang, R. Chapman, F. Haas, X. Liang, F. Azaiez, et al.. Collectivity in 41S. Physical Review C, American Physical Society, 2011, 86, pp.061304. ⟨10.1103/PhysRevC.83.061304⟩. ⟨in2p3-00616805⟩

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