T Sugimoto et al 2006 J. Phys.: Conf. Ser. 49 43 doi:10.1088/1742-6596/49/1/010
T Sugimoto1,2, T Nakamura1, N Fukuda2, M Miura1, Y Kondo1, N Aoi2, H Baba2, D Bazin3, T Gomi2, H Hasegawa4, Y Hashimoto1, N Imai5, T Kobayashi6, T Kubo2, T Motobayashi2, M Ohara1, A Saito7, H Sakurai2, S Shimoura7, A M Vinodkumar1, K Watanabe6, Y X Watanabe5, T Yakushiji6, Y Yanagisawa2, K Yoneda2 and M Ishihara2
Show affiliationsWe performed an experiment of the inelastic scattering of the two neutron halo nucleus 14Be at 68 A MeV on a carbon target. Since 14Be has no bound excited state, 14Be breaks up into 12Be and two neutrons. Using the invariant-mass method, the first excited state of 14Be is clearly observed at Eex = 1.56(13) MeV. A distorted-wave Born approximation analysis is performed and the spin-parity corresponding to the peak is assigned to be Jπ = 2+. Deformation length of 14Be is extracted to be ∂C = 1.53(10) fm. These experimental results are compared with shell-model calculations.
25.40.Fq Inelastic neutron scattering
23.20.Lv gamma transitions and level energies
24.10.Eq Coupled-channel and distorted-wave models
21.10.Gv Nucleon distributions and halo features
Issue 1 (2006)
T Sugimoto et al 2006 J. Phys.: Conf. Ser. 49 43
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