Phys. Rev. C 76, 064302 (2007) [8 pages]Intrinsic state lifetimes in 103Pd and 106,107CdReceived 4 September 2007; revised 21 October 2007; published 4 December 2007 The mean-lifetimes, τ, of various medium-spin excited states in 103Pd and 106,107Cd have been deduced using the Recoil Distance Doppler Shift technique and the Differential Decay Curve Method. In 106Cd, 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 106Cd compares with a predicted β2 value from total Routhian surface (TRS) calculations of 0.17. In addition, the mean-lifetimes of the yrast Iπ=15/2- states in 103Pd (at Ex=1262 keV) and 107Cd (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 103Pd but deviate for that predicted for 107Cd. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.76.064302
DOI:
10.1103/PhysRevC.76.064302
PACS:
21.10.Tg, 23.20.Lv, 25.70.Gh, 27.60.+j
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