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Evidence for X(5) critical point symmetry in<sup>128</sup>Ce

Balabanski, DL and Gladnishki, KA and Lo Bianco, G and Saltarelli, A and Zamfir, NV and McCutchan, EA and Ai, H and Casten, RF and Heinz, A and Meyer, DA and Plettner, C and Qian, J and Werner, V and Williams, E and Akkus, B and Amon, L and Cakirli, RB and Erduran, MN and Oktem, Y and Ashley, SF and Regan, PH and Rainovski, G (2006) Evidence for X(5) critical point symmetry in<sup>128</sup>Ce. International Journal of Modern Physics E, 15. pp. 1735-1740. ISSN 0218-3013

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Lifetimes of excited states in 128 Ce were measured using the recoil distance Doppler-shift (RDDS) and the Doppler-shift attenuation (DSAM) methods. The experiments were performed at the Wright Nuclear Structure Laboratory of Yale University. Excited states of 128 Ce were populated in the 100 Mo( 32 Si,4n) reaction at 120 MeV and the nuclear γ decay was measured with an array of eight Clover detectors positioned at forward and backward angles. The deduced yrast transition strengths together with the energies of the levels within the ground-state (gs) band of 128 Ce are in agreement with the predicted values for the X(5) critical point symmetry. Thus, we suggest 128 Ce as a benchmark X(5) nucleus in the mass A ≈ 130 region. © World Scientific Publishing Company.

Item Type: Article
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:30
Last Modified: 24 May 2018 01:56