Excited levels in the multishaped 117Pd nucleus studied via β decay of 117Rh

被引：8

作者：

Kurpeta, J. ^{[1
]}

Plochocki, A. ^{[1
]}

Urban, W. ^{[1
]}

Eronen, T. ^{[2
]}

Jokinen, A. ^{[2
]}

Kankainen, A. ^{[2
]}

Kolhinen, V. S. ^{[3
]}

Moore, I. D. ^{[2
]}

Penttila, H. ^{[2
]}

Pomorski, M. ^{[1
]}

Rinta-Antila, S. ^{[2
]}

Rzaca-Urban, T. ^{[1
]}

Wisniewski, J. ^{[1
]}

机构：

[1] Univ Warsaw, Fac Phys, Ul Pasteura 5, PL-02093 Warsaw, Poland

[2] Univ Jyvaskyla, Dept Phys, POB 35, FIN-40351 Jyvaskyla, Finland

[3] Texas A&M Univ, Cyclotron Inst, 3366 TAMU, College Stn, TX 77843 USA

来源：

PHYSICAL REVIEW C | 2018年 / 98卷 / 02期

关键词：

NEUTRON-RICH; DATA SHEETS; 1ST OBSERVATION; SPIN STRUCTURE; GROUND-STATES; SPECTROSCOPY; ISOMERS;

D O I：

10.1103/PhysRevC.98.024318

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Monoisotopic samples of exotic, neutron-rich Rh-117 nuclei, produced in the proton-induced fission of U-238 and separated using the IGISOL mass separator coupled to the JYFLTRAP Penning trap, were used to perform beta and gamma coincidence spectroscopy of Pd-117. The spin parity of the ground state of Pd-117 was determined to be 1/2(+) and the 19.1 ms isomer at 203.2 keV was assigned a spin-parity 7/2(-). The Rh-117 beta(-)-decay scheme was considerably extended, and various sequences of the levels were interpreted as resulting from the prolate, oblate, and triaxial nuclear shapes. Some of the beta(-) decays were considered as the allowed Gamow-Teller transitions. The experimental distribution of Gamow-Teller strength is discussed.

引用

页数：12

共 62 条

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