The European Physical Journal A

ISSN: 1434-6001 (printed version)
ISSN: 1434-601X (electronic version)

Table of Contents

Abstract Volume 2 Issue 3 (1998) pp 269-273

nuclear structure: Absolute E1 and E2 transition rates in ¹¹⁰Cd

L.K. Kostov (1), W. Andrejtscheff (1), L.G. Kostova (1) (*), L. Käubler (2), H. Prade (2), R. Schwengner (2)

(1) Bulgarian Academy of Sciences, Institute for Nuclear Research and Nuclear Energy, Tzarigradsko Chaussée 72, BG-1784 Sofia, Bulgaria
(2) Institute of Nuclear and Hadronic Physics of FZR, D-01314 Dresden, Germany

Received: 4 December 1997 / Revised version: 15 April 1998

Abstract: The lifetimes of several states in ¹¹⁰Cd have been determined by means of the generalized centroid-shift method. The reaction ¹⁰⁸Pd(<alpha>,2n) has been used and the following results were obtained: T_1/2(2879 keV) = 0.60 ± 0.10 ns, T_1/2(3029 keV) = 0.30 ± 0.10 ns, T_1/2(3056 keV) = 2.25 ± 0.10 ns, T_1/2(3611 keV) = 0.45 ± 0.10 ns. Electric dipole and quadrupole transitions are discussed in terms of octupole and quadrupole collectivity. The odd-spin sequence of the semi-aligned structure <nu>(h_11/2d_5/2) has been established with the band-head at J^<pi> = 7^-₂ identified as a new two-quasiparticle isomer, the lower-lying 5^-_1,2 states being of two-quasiproton character. Nuclear Reaction: ¹⁰⁸Pd(<alpha>,2n), E = 27 MeV; measured E_<Gamma>, I_<Gamma>, <Gamma>-r.f. Deduced: T_1/2, B(<alpha>L) in ¹¹⁰Cd. Ge detectors. Generalized centroid-shift analysis.

PACS: 27.60.+j 90 \leq A \leq 149

(*) Present address: "Redki metali" Ltd., 1830 Sofia - Buhovo
Communicated by D. Schwalm

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Online publication: July 16, 1998
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