Study of band structures in the γ-unstable nucleus 186Pt

doi:10.1016/0375-9474(90)90068-W

Nuclear Physics A

Volume 514, Issue 2, 30 July 1990, Pages 225-251

https://doi.org/10.1016/0375-9474(90)90068-W Get rights and content

Abstract

High-spin states in the transitional nucleus ¹⁸⁶Pt have been populated via the ¹⁸⁸Os(α, 6n) reaction and studied with the OSIRIS spectrometer. The yrast band and the γ-band have been extended to I^π = (26⁺) and 10⁺, respectively, and nine new side bands have been observed. The features of the γ-band suggest that the nucleus is extremely γ-soft. A coexistence of prolate, oblate and triaxial band structures has been established. The crossing observed in the bands built on the prolate nuclear shape is considered to result from the ( $πh_{92})^{2}$ alignment. For oblate shapes a ( $v i_{132})^{2}$ alignment has been found.

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¹: Permanent address: Institute for Nuclear Research and Nuclear Energy, 1784 Sofia, Bulgaria.

²: Present address: K.V.I., University of Groningen, NL-9747, AA Groningen, The Netherlands.

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Study of band structures in the γ-unstable nucleus 186Pt

Abstract

Nucl. Phys.

Phys. Reports

Phys. Lett.

Nucl. Phys.

Phys. Lett.

Nucl. Instr. Meth.

Nucl. Phys.

At. Data Nucl. Data Tables

Phys. Rev.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Phys. Lett.

Phys. Rev.

Progr. Theor. Phys.

Nucl. Phys.

Phys. Rev.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Study of band structures in the γ-unstable nucleus ¹⁸⁶Pt