Study of the unbound nucleus 11N by elastic resonance scattering
- Axelsson, L.
- Borge, M.J.G.
- Fayans, S.
- Goldberg, V.Z.
- Grévy, S.
- Guillemaud-Mueller, D.
- Jonson, Börn
- Källman, K.-M.
- Lönnroth, T.
- Lewitowicz, M.
- Manngård, P.
- Markenroth Bloch, Karin
- Martel, I.I.
- Mueller, A.C.
- Mukha, I.
- Nilsson, T.
- Nyman, G.
- Orr, N. A.
- Riisager, K.
- Rogatchev, G. V.
- Saint-Laurent, M. -G.
- Serikov, I. N.
- Sorlin, O.
- Tengblad, O.
- Wenander, F.
- Winfield, J. S.
- Wolski, R.
DOIAbstract
Resonances in the unbound nucleus 11N have been studied, using the resonance scattering reaction 10C+p. The data give evidence for three states above the 10C+p threshold with energies 1.30, 2.04, and 3.72 MeV. These states can be interpreted, in a potential-model analysis, as the ground state and the first two excited states with spin-parity 1 / 2+, 1 / 2-, and 5 / 2+ arising from the shell-model orbitals 1s1 / 2, 0p1 / 2, and 0d5 / 2. A narrow state superposed on a broad structure found at higher energy could be interpreted as the mirror state of the 3 / 2- in 11Be shifted down in energy. This shift would suggest a large radius of the potential
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