Visualizing N-11 by resonance reactions

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Axelsson L, Markenroth K, Borge MJG, Fayans S, Goldberg VZ, Grevy S, Guillemaud-Mueller D, Jonson B, Kallman KM, Lonnroth T, Lewitowicz M, Manngard P, Martel I, Mueller AC, Mukha I, Nilsson T, Nyman G, Orr NA, Riisager K, Rogatchev GV, Saint-Laurent MG, Serikov IN, Sorlin O, Tengblad O, Wenander F, Winfield JS, Wolski R
Publication year: 1998
Journal: AIP Conference Proceedings
Journal acronym: AIP CONF PROC
Volume number: 455
Start page: 260
End page: 263
Number of pages: 4
ISSN: 0094-243X
eISSN: 1935-0465


The proton-rich, unbound nucleus N-11 has been studied using the technique of elastic resonance scattering in inverse geometry. The spins and parities of the three lowest resonance levels have been determined as 1/2(+), 1/2(-) and 5/2(+), resulting from the orbitals 1s(1/2), 0p(1/2) and 0d(5/2), respectively. This level ordering is the same as the one found in the mirror nucleus of N-11, namely the one-neutron halo nucleus Be-11. Especially, the in Be-11 well known level inversion, where the ground state is a 1/2(+) intruder state below the from a naive shell model expected ground state 1/2-, is also found in N-11.

Last updated on 2020-19-09 at 05:40