Revised and extended level scheme of the doubly-odd nucleusIr188 | Zendy

A. Jungclaus | Zendy; V. Modamio | Zendy; J.L. Egido | Zendy; R. Schwengner | Zendy; A. Algora | Zendy; D. Bazzacco | Zendy; D. Escrig | Zendy; M Fernández | Zendy; L. M. Fraile | Zendy; S. M. Lenzi | Zendy; N. Mărginean | Zendy; T. Martínez | Zendy; D. R. Napoli | Zendy; C. A. Ur | Zendy

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Revised and extended level scheme of the doubly-odd nucleusIr188

Author(s) -

A. Jungclaus,

V. Modamio,

J.L. Egido,

R. Schwengner,

A. Algora,

D. Bazzacco,

D. Escrig,

M Fernández,

L. M. Fraile,

S. M. Lenzi,

N. Mărginean,

T. Martínez,

D. R. Napoli,

C. A. Ur

Publication year - 2008

Publication title -

physical review c

Language(s) - English

Resource type - Journals

eISSN - 1089-490X

pISSN - 0556-2813

DOI - 10.1103/physrevc.77.024310

Subject(s) - physics , excitation , state (computer science) , nucleus , spin (aerodynamics) , atomic physics , algorithm , quantum mechanics , computer science , thermodynamics , biology , microbiology and biotechnology

High-spin states in the doubly odd Z=77 nucleus 188Ir were studied using the reaction 186W(7Li, 5n) at 59 MeV and the GASP spectrometer for γ-ray detection. The level structures recently suggested to be built on the known 4.1(3) ms isomeric state of this nucleus have been considerably revised and extended and an isomer with a lifetime of 17.7(2) ns has been identified within the main decay sequence. In addition two rotational bands built on low spin states below the ms isomer have been observed for the first time. The basic features of the excitation scheme of 188Ir are discussed within the Hartree-Fock-Bogoliubov theory within the Lipkin-Nogami approach with the finite-range density-dependent Gogny force

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