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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/7330
Title: Crossing the dripline to N-11 using elastic resonance scattering
Authors: Markenroth, K.; Axelsson, L.; Baxter, S.; García Borge, María José; Donzaud, C.; Fayans, S.; Fynbo, H. O. U.; Goldberg, V. Z.; Grévy, S.; Guillemaud-Mueller, D.; Jonson, B.; Källman, K.-M.; Leenhardt, S.; Lewitowicz, M.; Lönnroth, T.; Manngard, P.; Martel, Ismael; Mueller, A. C.; Mukha, I.; Nilsson, T.; Nyman, G.; Orr, N. A.; Riisager, K.; Rogachev, G. V.; Saint-Laurent, M. G.; Serikov, I. N.; Shul’gina, N. B.; Sorlin, O.; Steiner, M.; Tengblad, Olof; Thoennessen, M.; Tryggestad, E.; Trzaska, W. H.; Wenander, F.; Winfield, J. S.; Wolski, R.
Keywords: [PACS] Spin, parity, and isobaric spin
[PACS] Single-particle levels and strength functions
[PACS] Resonance reactions
[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
Issue Date: 16-Aug-2000
Publisher: American Physical Society
Citation: Physical Review C 62(3): 034308 (2000)
Abstract: The level structure of the unbound nucleus N-11 has been studied by C-10+p elastic resonance scattering in inverse geometry with the LISE3 spectrometer at GANIL, using a C-10 beam with an energy of 9.0 MeV/ nucleon. An additional measurement was done at the A1200 spectrometer at MSU. The excitation function above the C-10+p threshold has been determined up to 5 MeV. A potential-model analysis revealed three resonance states at energies 1.27(-0.05)(+0.18) MeV (Γ = 1.44 ± 0.2 MeV), 2.01(-0.05)(+0.15) MeV (Γ = 0.84 ± 0.2 MeV), and 3.75 ± 0.05 MeV (Γ = 0.60 ± 0.05 MeV) with the spin-parity assignments I(π)=1/2(+),1/2(-),5/2(+), respectively. Hence, N-11 is shown to have a ground state parity inversion completely analogous to its mirror partner Be-11. A narrow resonance in the excitation function at 4.33 ± 0.05 MeV was also observed and assigned spin parity 3/2(-).
Description: 12 pages, 4 tables, 9 figures.-- PACS nrs.: 21.10.Hw; 21.10.Pc; 25.40.Ny; 27.20.+n.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevC.62.034308
URI: http://hdl.handle.net/10261/7330
ISSN: 0556-2813
DOI: 10.1103/PhysRevC.62.034308
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