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Jensen, D R; Hagemann, G B; Hamamoto, I; Ødegård, S W; Herskind, B; Sletten, G; Wilson, J N; Spohr, K; Hübel, H; Bringel, P; Neusser, A; Schönwasser, G; Singh, A K; Ma, W C; Amro, H; Bracco, A; Leoni, S; Benzoni, G; Maj, A; Petrache, C M; Bianco, G Lo; Bednarczyk, P; Curien, D
Physical review letters, 09/2002, Volume: 89, Issue: 14Journal Article
The nucleus 163Lu has been populated through the reaction 139La(29Si,5n) with a beam energy of 157 MeV. Three triaxial, strongly deformed (TSD) bands have been observed with very similar rotational properties. The first excited TSD band has earlier been assigned as a one-phonon wobbling excitation built on the lowest-lying (yrast) TSD band. The large B(E2)(out)/B(E2)(in) value obtainable for one of four observed transitions between the second and first excited TSD bands is in good agreement with particle-rotor calculations for a two-phonon wobbling excitation.
