Gamow-Teller decay of the T=1 nucleus 46Cr -: art. no. 024308

被引：21

作者：

Onishi, TK

Gelberg, A

Sakurai, H

Yoneda, K

Aoi, N

Imai, N

Baba, H

von Brentano, P

Fukuda, N

Ichikawa, Y

Ishihara, M

Iwasaki, H

Kameda, D

Kishida, T

Lisetskiy, AF

Ong, HJ

Osada, M

Otsuka, T

Suzuki, MK

Ue, K

Utsuno, Y

Watanabe, H

机构：

[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[2] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

[3] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[4] Rikkyo Univ, Dept Phys, Tokyo 171, Japan

[5] Tokyo Inst Technol, Dept Phys, Tokyo, Japan

[6] Michigan State Univ, E Lansing, MI 48824 USA

[7] Japan Atom Energy Res Inst, Tokai, Ibaraki 3191195, Japan

来源：

PHYSICAL REVIEW C | 2005年 / 72卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.72.024308

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：

The Gamow-Teller beta decay of Cr-46 to the N=Z odd-odd nucleus V-46 has been observed for the first time. Cr-46 was produced by the fragmentation of a Cr-50 primary beam at 80 MeV/nucleon. By means of beta-gamma coincidence measurements, a gamma-ray peak at 993 keV corresponding to the decay of the 1(1)(+) state in V-46 was observed. The branching ratio of the Gamow-Teller decay to this state was found to be b(GT)=0.216 +/- 0.050. The half-life of Cr-46 was measured to be T-1/2=240 +/- 140 ms. The transition strength was determined to be B(GT)=0.64 +/- 0.20. This result was compared with theoretical values calculated with the shell model and the phenomenological quasideuteron model.

引用

页数：7

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