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Evidence for X(5) critical point symmetry in 128Ce

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 128Ce. International Journal of Modern Physics E, 15. pp. 1735-1740. ISSN 0218-3013

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Abstract

Lifetimes of excited states in 128Ce 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 128Ce were populated in the 100Mo(32Si,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 128Ce are in agreement with the predicted values for the X(5) critical point symmetry. Thus, we suggest 128Ce as a benchmark X(5) nucleus in the mass A ≈ 130 region. © World Scientific Publishing Company.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:29
Last Modified: 08 Dec 2014 02:33
DOI: 10.1142/S0218301306005538