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Deformation-Driven p-Wave Halos at the Drip Line: 31Ne

Abstract : The halo structure of Ne31 is studied using 1n-removal reactions on C and Pb targets at 230 MeV/nucleon. A combined analysis of the cross sections of these nuclear and Coulomb dominated reactions that feed directly the Ne30 ground-state reveals Ne31 to have a small neutron separation energy, 0.15+0.16−0.10 MeV, and spin-parity 3/2−. Consistency of the data with reaction and large-scale shell-model calculations identifies Ne31 as deformed and having a significant p-wave halo component, suggesting that halos are more frequent occurrences at the neutron drip line.
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Contributor : Sandrine Guesnon Connect in order to contact the contributor
Submitted on : Thursday, April 10, 2014 - 4:36:19 PM
Last modification on : Saturday, June 25, 2022 - 9:47:48 AM

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T. Nakamura, N. Kobayashi, Y. Kondo, Y. Satou, J.A. Tostevin, et al.. Deformation-Driven p-Wave Halos at the Drip Line: 31Ne. Physical Review Letters, American Physical Society, 2014, 112, pp.142501. ⟨10.1103/PhysRevLett.112.142501⟩. ⟨in2p3-00977048⟩



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