Publication: Lifetimes and transition probabilities for low-lying yrast levels in Te-130,Te-132
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2022-09-14
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Amer Physical Soc
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Abstract
Lifetimes have been measured for the low-lying yrast levels of Te-130,Te-132 using gamma - gamma fast timing methods. The excited states were populated in beta(-) and IT decay of fission fragments, mass-separated by the Lohengrin separator at Institut Laue-Langevin. Four LaBr3(Ce) detectors, placed at the focal plane of the spectrometer, were used for the gamma -gamma fast timing measurement. Lifetimes of mu s isomers were measured using coincidence of an ionization chamber with two Clover HPGe detectors. Themeasured lifetimes and absolute transition probabilities are discussed in the light of systematics with the neighboring nuclei. Large basis shell model calculations have been performed to interpret the level structure and transition probabilities in these even mass Te isotopes.
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ArtÃculo firmado por 16 autores. Authors acknowledge Prof. M. Saha Sarkar for many fruitful scientific discussions regarding the shell model calculation and other physics issues in this mass region. The effort of the staffs of ILL is acknowledged for providing a good quality setup for the experiments. D.K. and T.B. gratefully acknowledge all support from VECC, DAE towards performing the experiment at an international laboratory. L.M.F. acknowledges the support from the Spanish government through RTI2018-098868-B-I00 project.