SEARCH FOR SIGNATURE INVERSION IN THE πi13/2 ⊗ νi13/2 BANDS IN 182,184,186Au-Reference-Cited by-同舟云学术

SEARCH FOR SIGNATURE INVERSION IN THE πi13/2 ⊗ νi13/2 BANDS IN 182,184,186Au

Published:2006-10 Issue:07 Volume:15 Page:1437-1445
ISSN:0218-3013
Container-title:International Journal of Modern Physics E
language:en
Short-container-title:Int. J. Mod. Phys. E

Author:

ZHANG Y. H.¹,ZHOU X. H.¹,HE J. J.¹,LIU Z.¹,FANG Y. D.¹,GUO W. T.¹,LEI X. G.¹,GUO Y. X.¹,NDONTCHUENG M. MOYO¹,MA L.¹,OSHIMA M.²,TOH Y.²,KOIZUMI M.²,OSA A.²,KIMURA A.²,HATSUKAWA Y.²,HAYAKAWA H.²,SHIZUMA T.²,KATAKURA J.²,MATSUDA M.²,DE ANGELIS G.³,MARGINEAN N.³,GADEA A.³,NAPOLI D. R.³,AXIOTIS M.³,RUSU C.³,MARTINEZ T.³,MORIKAWA T.⁴,SUGAWARA M.⁵,KUSAKARI H.⁶,XU F. R.⁷

Affiliation:

1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China

2. Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

3. Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, Italy

4. Department of Physics, Kyushu University, Fukuoka, 812-81, Japan

5. Chiba Institute of Technology, Narashino, China 275-0023, Japan

6. Chiba University, Inage-ku, Chiba 263-8512, Japan

7. Department of Technical Physics, Peking University, Beijing 100871, China

Abstract

Search for low-spin signature inversion in the πi13/2 ⊗ νi13/2 bands in odd-odd 182,184,186 Au has been conducted through the standard in-beam γ-spectroscopy techniques. The experiments for 182 Au and 186 Au have been performed in the Japan Atomic Energy Agency (JAEA) via the 152 Sm (35 Cl ,5 n )182 Au and 172 Yb (19 F ,5 n )186 Au reactions, respectively. A study of 184 Au has been made using a multi-detector array GASP in LNL, Italy, via the 159 Tb (29 Si ,4 n )184 Au reaction. The πi13/2 ⊗ νi13/2 bands in these three nuclei have been identified and extended up to high-spin states. In particular, the inter-band connection between the πi13/2 ⊗ νi13/2 band and the ground-state band in 184 Au has been established, leading to a firm spin-and-parity assignment for the πi13/2 ⊗ νi13/2 band. The low-spin signature inversion is found in the πi13/2 ⊗ νi13/2 bands in 182,184,186 Au according to our spin-assignment and the signature crossing observed at high-spin states.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218301306005125

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