Shell gap reduction in neutron-rich N=17 nuclei

Abstract : The spectroscopy of $^{27}$Ne has been investigated through the one-neutron transfer reaction $^{26}$Ne(d,p)$^{27}$Ne in inverse kinematics at 9.7 MeV/nucleon. The results strongly support the existence of a low-lying negative parity state in $^{27}$Ne, which is a signature of a reduced sd–fp shell gap in the N=16 neutron-rich region, at variance with stable nuclei.
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Submitted on : Thursday, December 21, 2006 - 10:44:42 AM
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A. Obertelli, A. Gillibert, N. Alamanos, M. Alvarez, F. Auger, et al.. Shell gap reduction in neutron-rich N=17 nuclei. Physics Letters B, Elsevier, 2006, 633, pp.33-37. ⟨10.1016/j.physletb.2005.11.033⟩. ⟨in2p3-00025623⟩

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