Abstract
High spin states up toJ=14 and excitation energy up toE *=3076 keV have been observed in the odd-odd nucleus100Tc with the reaction96Zr(7Li, 3n), at bombarding energies between 21 and 31 MeV, by in-beam γ spectroscopy and conversion-electron measurements. A ΔJ=1 negative parity band similar to that observed in theN=57 isotone102Rh, and based on the 8−, 708 keV state has been identified. The observed band can be interpreted in terms of collective core excitations based on a two-quasiparticle state of(πg9/2 ⊗ νh11/2) configuration. Comparison with IBFM-2 calculations have been performed.
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References
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We wish to thank Prof. P.G. Bizzeti for fruitful discussions and support throughout the course of this work and Dr. P. Del Carmine for the collaboration in the measurements. We are also indebted to the SPEL group (Prof. N. Vingiani, Dr. C. Rossi-Alvarez, Dr. G. Galeazzi and Mr. L. Badan) for the use of the electron spectrometer, and to the technical staff of Laboratori Nazionali di Legnaro for the operation of the accelerator.