TY - JOUR
ID - Digital.CSIC
A1 - Axelsson, L.
A1 - Baxter, S.
A1 - Donzaud, C.
A1 - Fayans, S.
A1 - Fynbo, H. O. U.
A1 - García Borge, María José
A1 - Goldberg, V. Z.
A1 - Grévy, S.
A1 - Guillemaud-Mueller, D.
A1 - Jonson, B.
A1 - Källman, K.-M.
A1 - Leenhardt, S.
A1 - Lewitowicz, M.
A1 - Lönnroth, T.
A1 - Manngard, P.
A1 - Markenroth, K.
A1 - Martel, Ismael
A1 - Mueller, A. C.
A1 - Mukha, I.
A1 - Nilsson, T.
A1 - Nyman, G.
A1 - Orr, N. A.
A1 - Riisager, K.
A1 - Rogachev, G. V.
A1 - Saint-Laurent, M. G.
A1 - Serikov, I. N.
A1 - Shul?gina, N. B.
A1 - Sorlin, O.
A1 - Steiner, M.
A1 - Tengblad, Olof
A1 - Thoennessen, M.
A1 - Tryggestad, E.
A1 - Trzaska, W. H.
A1 - Wenander, F.
A1 - Winfield, J. S.
A1 - Wolski, R.
Y1 - 2000-08-16
SN - 0556-2813
UR - http://hdl.handle.net/10261/7330
N2 - 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 (? = 1.44 ± 0.2 MeV), 2.01(-0.05)(+0.15) MeV (? = 0.84 ± 0.2 MeV), and 3.75 ± 0.05 MeV (? = 0.60 ± 0.05 MeV) with the spin-parity assignments I(?)=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(-).
PB - American Physical Society
KW - [PACS] Properties of specific nuclei listed by mass ranges: 6 ? A ? 19
KW - [PACS] Resonance reactions
KW - [PACS] Single-particle levels and strength functions
KW - [PACS] Spin, parity, and isobaric spin
T1 - Crossing the dripline to N-11 using elastic resonance scattering
ER -