CUED Publications database

Intrinsic state lifetimes in Pd103 and Cd106,107

Ashley, SF and Regan, PH and Andgren, K and McCutchan, EA and Zamfir, NV and Amon, L and Cakirli, RB and Casten, RF and Clark, RM and Gelletly, W and Gürdal, G and Keyes, KL and Meyer, DA and Erduran, MN and Papenberg, A and Pietralla, N and Plettner, C and Rainovski, G and Ribas, RV and Thomas, NJ and Vinson, J and Warner, DD and Werner, V and Williams, E and Liu, HL and Xu, FR (2007) Intrinsic state lifetimes in Pd103 and Cd106,107. Physical Review C - Nuclear Physics, 76. ISSN 0556-2813

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Abstract

The mean-lifetimes, τ, of various medium-spin excited states in Pd103 and Cd106,107 have been deduced using the Recoil Distance Doppler Shift technique and the Differential Decay Curve Method. In Cd106, the mean-lifetimes of the Iπ=12+ state at Ex=5418 keV and the Iπ=11- state at Ex=4324 keV have been deduced as 11.4(17)ps and 8.2(7)ps, respectively. The associated β2 deformation within the axially-symmetric deformed rotor model for these states are 0.14(1) and 0.14(1), respectively. The β2 deformation of 0.14(1) for the Iπ=12+ state in Cd106 compares with a predicted β2 value from total Routhian surface (TRS) calculations of 0.17. In addition, the mean-lifetimes of the yrast Iπ=152- states in Pd103 (at Ex=1262 keV) and Cd107 (at Ex=1360 keV) have been deduced to be 31.2(44)ps and 31.4(17)ps, respectively, corresponding to β2 values of 0.16(1) and 0.12(1) assuming axial symmetry. Agreement with TRS calculations are good for Pd103 but deviate for that predicted for Cd107. © 2007 The American Physical Society.

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: 10.1103/PhysRevC.76.064302