Abstract
A new isomeric state witht 1/2=3.9±0.3μs has been observed in the nucleus 13252 Te80 which has two protons more and two neutrons less than the doubly magic isobar 13250 Sn82. The deexcitation pattern suggests spin and parity 10+ for this level near 2,700 keV which is populated in fission. The energy and the half-life of the isomer can be understood with the assumption that it is the 10+ level based on theh 2/−211 neutron hole configuration.
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The authors acknowledge with pleasure the fruitful discussions with Prof. O.W.B. Schult, Prof. K. Peker, Prof. K. Heyde, Dr. P. Kleinheinz and Dr. J.A. Pinston as well as the assistance of Dr. G. Sadler, Dr. H.A. Selič and of the technical groups at JOSEF and LOHENGRIN in the experimental work.
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Sistemich, K., Lauppe, W.D., Lawin, H. et al. Evidence for a 10+ state in132Te. Z Physik A 292, 145–151 (1979). https://doi.org/10.1007/BF01441621
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DOI: https://doi.org/10.1007/BF01441621