Deformation-Driven p-Wave Halos at the Drip Line: Ne31

T. Nakamura et al.
Phys. Rev. Lett. 112, 142501 – Published 7 April 2014

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, 0.150.10+0.16  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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  • Received 25 September 2013

DOI:https://doi.org/10.1103/PhysRevLett.112.142501

© 2014 American Physical Society

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Vol. 112, Iss. 14 — 11 April 2014

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