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High-K structures in {sup 180}W and {sup 181}W

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Abstract

In each of the prolate-deformed isotopes {sup 180}W and {sup 181}W, a very high-K non-collective state has been found which decays directly into the corresponding collective ground-state rotational band. There is complete breakdown of the K-selection rule, in contrast to the partial breakdown observed recently in {sup 174}Hf and {sup 182}Os. Nevertheless, the non-collective states themselves retain characteristics associated with a prolate axially symmetric shape, implying that K is still a useful quantum number. (author). 17 refs., 2 figs.
Authors:
Yeung, K C; Walker, P M; Singleton, B D.D.; [1]  Urban, W; Lisle, J C; Copnell, J; Mo, J N; [2]  Joyce, M J; [3]  Gjorup, N L; Sletten, G [4] 
  1. Surrey Univ., Guildford (United Kingdom). Dept. of Physics
  2. Manchester Univ. (United Kingdom). Schuster Lab.
  3. Liverpool Univ. (United Kingdom). Oliver Lodge Lab.
  4. Risoe National Lab., Roskilde (Denmark)
Publication Date:
Aug 01, 1992
Product Type:
Conference
Report Number:
AECL-10613(v.2); CONF-920548-; CONF-9205444-
Reference Number:
SCA: 663110; 663570; PA: AIX-28:057809; EDB-97:122551; SN: 97001841932
Resource Relation:
Conference: Workshop on large gamma-ray detector arrays, Ottawa (Canada); Chalk River (Canada), 18-23 May 1992; 19-23 May 1992; Other Information: PBD: Aug 1992; Related Information: Is Part Of Proceedings of the international conference on nuclear structure at high angular momentum and the workshop on large gamma-ray detector arrays; PB: 500 p.
Subject:
66 PHYSICS; TUNGSTEN 180; HIGH SPIN STATES; TUNGSTEN 181; ANGULAR MOMENTUM; DEFORMED NUCLEI; ENERGY LEVELS; GAMMA DECAY; GAMMA SPECTROSCOPY; ISOMERIC NUCLEI; ROTATIONAL STATES; SELECTION RULES; SHAPE; YRAST STATES
OSTI ID:
520570
Research Organizations:
Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Nuclear Labs.
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE97638960; TRN: CA9700474057809
Availability:
INIS; OSTI as DE97638960
Submitting Site:
INIS
Size:
pp. 148-152
Announcement Date:
Sep 23, 1997

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Citation Formats

Yeung, K C, Walker, P M, Singleton, B D.D., Urban, W, Lisle, J C, Copnell, J, Mo, J N, Joyce, M J, Gjorup, N L, and Sletten, G. High-K structures in {sup 180}W and {sup 181}W. Canada: N. p., 1992. Web.
Yeung, K C, Walker, P M, Singleton, B D.D., Urban, W, Lisle, J C, Copnell, J, Mo, J N, Joyce, M J, Gjorup, N L, & Sletten, G. High-K structures in {sup 180}W and {sup 181}W. Canada.
Yeung, K C, Walker, P M, Singleton, B D.D., Urban, W, Lisle, J C, Copnell, J, Mo, J N, Joyce, M J, Gjorup, N L, and Sletten, G. 1992. "High-K structures in {sup 180}W and {sup 181}W." Canada.
@misc{etde_520570,
title = {High-K structures in {sup 180}W and {sup 181}W}
 author = {Yeung, K C, Walker, P M, Singleton, B D.D., Urban, W, Lisle, J C, Copnell, J, Mo, J N, Joyce, M J, Gjorup, N L, and Sletten, G}
 abstractNote = {In each of the prolate-deformed isotopes {sup 180}W and {sup 181}W, a very high-K non-collective state has been found which decays directly into the corresponding collective ground-state rotational band. There is complete breakdown of the K-selection rule, in contrast to the partial breakdown observed recently in {sup 174}Hf and {sup 182}Os. Nevertheless, the non-collective states themselves retain characteristics associated with a prolate axially symmetric shape, implying that K is still a useful quantum number. (author). 17 refs., 2 figs.}
 place = {Canada}
 year = {1992}
 month = {Aug}
 }