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Possible triaxial superdeformation in174Hf

 

作者: D. J. Hartley,   M. Djongolov,   L. L. Riedinger,   F. G. Kondev,   R. V. F. Janssens,   K. Abu Saleem,   I. Ahmad,   D. L. Balabanski,   M. P. Carpenter,   P. Chowdury,   D. M. Cullen,   M. Danchev,   G. D. Dracoulis,   H. El‐Masri,   J. Goon,   A. Heinz,   R. A. Kaye,   T. L. Khoo,   T. Lauritsen,   C. J. Lister,   E. F. Moore,   M. A. Riley,   D. Seweryniak,   I. Shestakova,   G. Sletten,   P. M. Walker,   C. Wheldon,   I. Wiedenho¨ver,   O. Zeidan,   Jing‐ye Zhang,  

 

期刊: AIP Conference Proceedings  （AIP Available online 1902）
卷期: Volume 638, issue 1  

页码: 119-124

 

ISSN:0094-243X

 

年代: 1902

 

DOI:10.1063/1.1517949

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Four regularly spaced rotational bands with large dynamical moments of inertia, which are consistent with known superdeformed bands in the Lu/Hf region, have been identified in174Hf. The states were populated in the130Te(48Ca,4n) reaction at a beam energy of 194 MeV. The Gammasphere array detected the emitted gamma radiation. Ultimate cranker calculations predict substantial triaxial deformation (&ggr; ≈ ±17°) for highly deformed174Hf structures. However,174Hf is eight neutrons away from the previously establishedN= 94 triaxial superdeformed shell gap. Shell gaps atN= 100 and 106 with &ggr; ⩾ 15° are observed when &Vegr;2≈ 0.45, which may be responsible for the predicted TSD minima in174Hf. © 2002 American Institute of Physics

 

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