Gamma rays from the N = Z - 2 nucleus Fe-50 have been observed, establishing the rotational ground state band up to the state J(pi) = 11(+) at 6.994 MeV excitation energy. The experimental Coulomb energy differences, obtained by comparison with the isobaric analog states in its mirror Cr-50, confirm the qualitative interpretation of the backbending patterns in terms of successive alignments of proton and neutron pairs. A quantitative agreement with experiment has been achieved by exact shell model calculations, incorporating the differences in radii along the yrast bands, and properly renormalizing the Coulomb matrix elements in the pf model space.

Coulomb energy differences in T=1 mirror rotational bands in Fe-50 and Cr-50 RID C-4732-2011

BELCARI, NICOLA;
2001

Abstract

Gamma rays from the N = Z - 2 nucleus Fe-50 have been observed, establishing the rotational ground state band up to the state J(pi) = 11(+) at 6.994 MeV excitation energy. The experimental Coulomb energy differences, obtained by comparison with the isobaric analog states in its mirror Cr-50, confirm the qualitative interpretation of the backbending patterns in terms of successive alignments of proton and neutron pairs. A quantitative agreement with experiment has been achieved by exact shell model calculations, incorporating the differences in radii along the yrast bands, and properly renormalizing the Coulomb matrix elements in the pf model space.
Lenzi, Sm; Marginean, N; Napoli, Dr; Ur, Ca; Zuker, Ap; de Angelis, G; Algora, A; Axiotis, M; Bazzacco, D; Belcari, Nicola; Bentley, Ma; Bizzetti, Pg; Bizzeti Sona, A; Brandolini, F; von Brentano, P; Bucurescu, D; Cameron, Ja; Chandler, C; De Poli, M; Dewald, A; Eberth, H; Farnea, E; Gadea, A; Garces Narro, J; Gelletly, W; Grawe, H; Isocrate, R; Joss, Dt; Kalfas, Ca; Klug, T; Lampman, T; Lunardi, S; Martinez, T; Martinez Pinedo, G; Menegazzo, R; Nyberg, J; Podolyak, Z; Poves, A; Ribas, Rv; Alvarez, Cr; Rubio, B; Sanchez Solano, J; Spolaore, P; Steinhardt, T; Thelen, O; Tonev, D; Vitturi, A; von Oertzen, W; Weiszflog, M.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/67867
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