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Lifetime measurements in Pd-102: Searching for empirical proof of the E(5) critical-point symmetry in nuclear structure

Abstract : Lifetimes of yrast and nonyrast states of Pd-102 populated via the Zr-92(C-13, 3n) reaction are measured by means of the recoil distance Doppler-shift technique with a Cologne plunger coupled to a GASP spectrometer. The event-by-event data accumulated at 24 plunger distances in the range of 0.1 mu m to 9 mm are analyzed using the differential decay curve method. The resulting B(E2) values of the gamma transitions depopulating yrast-band members up to the I-pi = 8(+) state are found to deviate significantly from the corresponding predictions of the E(5) critical-point symmetry.
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http://hal.in2p3.fr/in2p3-01279488
Contributor : Emilie Bonnardel <>
Submitted on : Friday, February 26, 2016 - 12:15:03 PM
Last modification on : Monday, February 10, 2020 - 6:14:09 PM

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T. Konstantinopoulos, S.F. Ashley, M. Axiotis, A. Spyrou, S. Harissopulos, et al.. Lifetime measurements in Pd-102: Searching for empirical proof of the E(5) critical-point symmetry in nuclear structure . Physical Review C, American Physical Society, 2016, 93 (1), pp.014320. ⟨10.1103/PhysRevC.93.014320⟩. ⟨in2p3-01279488⟩

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