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Shape coexistence in 180Hg studied through the β decay of 180Tl

Abstract : The β + /EC decay of 180Tl and excited states in the daughter nucleus 180Hg have been investigated at the CERN On-Line Isotope Mass Separator (ISOLDE) facility. Many new low-lying energy levels were observed in 180Hg, of which the most significant are the 0+ 2 at 419.6 keV and the 2+ 2 at 601.3 keV. The former is the bandhead of an excited band in 180Hg assumed originally to be of prolate nature. From the β feeding to the different states in 180Hg, the ground-state spin of 180Tl was deduced to be (4−,5−).
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http://hal.in2p3.fr/in2p3-00655964
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Submitted on : Tuesday, January 3, 2012 - 3:21:35 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:18 PM

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J. Elseviers, A. N. Andreyev, S. Antalic, A. Barzakh, N. Bree, et al.. Shape coexistence in 180Hg studied through the β decay of 180Tl. Physical Review, American Physical Society (APS), 2011, 84, pp.034307. ⟨10.1103/PhysRevC.84.034307⟩. ⟨in2p3-00655964⟩

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