The nucleus [Formula presented] has been populated through the reaction [Formula presented] 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 [Formula presented] 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.
Evidence for Second-Phonon Nuclear Wobbling / D.R. Jensen, G.B. Hagemann, I. Hamamoto, S.W. Odegard, B. Herskind, G. Sletten, J.N. Wilson, K. Spohr, H. Hubel, P. Bringel, A. Neusser, G. Schonwasser, A.K. Singh, W.C. Ma, H. Amro, A. Bracco, S. Leoni, G. Benzoni, A. Maj, C.M. Petrache, G.L. Bianco, P. Bednarczyk, D. Curien. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 89:14(2002), pp. 142503.1-142503.4. [10.1103/PhysRevLett.89.142503]
Evidence for Second-Phonon Nuclear Wobbling
A. Bracco;S. Leoni;
2002
Abstract
The nucleus [Formula presented] has been populated through the reaction [Formula presented] 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 [Formula presented] 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.
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