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Particle-core coupling in S37

Abstract : Excited states of the neutron-rich N=21 S37 nucleus have been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of S36 ions with a thin Pb208 target. The magnetic spectrometer, PRISMA, and the γ-ray array, CLARA, were used in the measurements. The level scheme of S37 was established to an excitation energy of 4196 keV and a number of new transitions were observed, in particular that corresponding to the decay of the proposed Jπ=(11/2−) level at an excitation energy of 2776 keV. The structure of the state is discussed within the context of state-of-the-art shell-model calculations using the SDPF-U effective interaction; the main component of the wave function corresponds to the coupling of the odd 1f7/2 neutron to the first 2+ state of the S36 core. The electromagnetic decay properties of the state are discussed within the context of a particle-core coupling model and the shell model. The other members of the multiplet of states are also discussed.
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Contributor : Sophie Heurteau <>
Submitted on : Thursday, June 23, 2016 - 10:47:01 AM
Last modification on : Wednesday, September 16, 2020 - 4:09:26 PM

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R. Chapman, Z. M. Wang, M. Bouhelal, F. Haas, X. Liang, et al.. Particle-core coupling in S37. Physical Review C, American Physical Society, 2016, 93 (4), pp.044318. ⟨10.1103/PhysRevC.93.044318⟩. ⟨in2p3-01336463⟩



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