Details

Autor(en) / Beteiligte

• GU Long ZHU Sheng-Jiang J. H. Hamilton A. V. Ramayya J. K. Hwang S. H. Liu WANG Jian-Guo Y. X. Luo J. O. Rasmussen I. Y. Lee XU Qiang E. Y. Yeoh W. C. Ma

Titel

Collective Band Structures and Identification of One-Phonon and Two-Phonon γ-Vibrational Bands in 109Tc

Ist Teil von

• Chinese physics letters, 2010, Vol.27 (6), p.62-65

Erscheinungsjahr

2010

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The high spin states of the neutron-rich 109Tc nucleus are reinvestigated by observing prompt γ-rays from the spontaneous fission of 252 Cf. The previously known yrast band based on the 7/2＋ state is updated. A side band built on the 11/2＋ state is expanded and a new band based on the 15/2＋ state is identified. Band crossing in the yrast band occurs around fω≈ 0.36 MeV. This band crossing is associated with the alignment of two h11/2 neutrons according to the cranked shell model calculations. The band based on the 11/2＋ state is proposed as a candidate for the one-phonon γ-vibrational band, and the band built on the 15/2＋ state is proposed as a candidate for the two-phonon γ-vibrational band. Other characteristics for the observed bands are discussed.