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Lifetime measurements in the Yrast magnetic band in 193Pb

K A Gladnishki1, D L Balabanski1,2,3, P Petkov2,4, A Dewald4, D Tonev4, M Axiotis5, A Fitzler4, M Danchev3, S Harissopulos6, S Lalkovski3, N Marginean5, T Martinez5, O Moeller4, G Neyens7, A Spyrou6, E A Stefanova2 and C Ur5

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Lifetimes of states in the \nu i^{-1}_{13/2} \bigotimes \pi (i_{13/2}h_{9/2})_{11^{-}} magnetic band in 193Pb have been measured with the recoil-distance Doppler-shift (RDDS) method. This band is built on the Iπ = 29/2 isomer (Eex = 2584 keV, T1/2 = 9.4 ns). High-spin states in 193Pb were populated in the 170Er (28Si, 5n) reaction at 149 MeV. The nuclear γ-decay was detected with the GASP spectrometer in combination with the Köln plunger device. These results provide for the first time a complete set of experimental observables for such an excitation in atomic nuclei.


PACS

21.10.Tg Lifetimes, widths

21.10.Hw Spin, parity, and isobaric spin

23.20.-g Electromagnetic transitions

27.80.+w 190(less-than-or-equal-to)A(less-than-or-equal-to)219

21.10.Ky Electromagnetic moments

21.10.Re Collective levels

Subjects

Nuclear physics

Dates

Issue 10 (October 2005)

Received 20 March 2005

Published 12 September 2005



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