Search for wobbling excitations in Hf nuclei: Are the SD bands triaxial?

D. J. Hartley; M. K. Djongolov; L. L. Riedinger; G. B. Hagemann; R. V.F. Janssens; F. G. Kondev; E. F. Moore; M. A. Riley; A. A. Aguilar; C. R. Bingham; D. B. Campbell; M. P. Carpenter; P. Chowdhury; M. Cromaz; D. M. Cullen; M. Danchev; G. D. Dracoulis; P. Fallon; J. Goon; R. A. Kaye; T. L. Khoo; R. W. Laird; T. Lauritsen; A. O. MacChiavelli; B. McClain; G. Mukherjee; E. Ngijoi-Yogo; H. I. Park; G. Sletten; S. K. Tandel; P. M. Walker; Jing Ye Zhang

doi:10.1063/1.1905285

Search for wobbling excitations in Hf nuclei: Are the SD bands triaxial?

D. J. Hartley^*, M. K. Djongolov, L. L. Riedinger, G. B. Hagemann, R. V.F. Janssens, F. G. Kondev, E. F. Moore, M. A. Riley, A. A. Aguilar, C. R. Bingham, D. B. Campbell, M. P. Carpenter, P. Chowdhury, M. Cromaz, D. M. Cullen, M. Danchev, G. D. Dracoulis, P. Fallon, J. Goon, R. A. KayeT. L. Khoo, R. W. Laird, T. Lauritsen, A. O. MacChiavelli, B. McClain, G. Mukherjee, E. Ngijoi-Yogo, H. I. Park, G. Sletten, S. K. Tandel, P. M. Walker, Jing Ye Zhang

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Two Gammasphere experiments have been performed in order to establish the possible triaxial nature of strongly deformed (SD) bands in ¹⁷⁴Hf. A lifetime measurement confirmed the large deformation of the four previously observed bands in this nucleus. In addition, a thin-target, high-statistics experiment was carried out to search for linking transitions between the SD bands. No such transitions, which represent an experimental signature for wobbling modes, were observed. Four new SD bands were found in ¹⁷⁴Hf together with a single SD band in ¹⁷³Hf. These results indicate that the strongly deformed sequences of N ≈ 102 Hf isotopes behave differently than the TSD bands found in Lu nuclei near N = 92. The interpretation of these bands in terms of possible stable triaxial deformation is confronted with the experimental findings and UC predictions.

Original language	English
Title of host publication	NUCLEI AT THE LIMITS
Pages	15-20
Number of pages	6
DOIs	https://doi.org/10.1063/1.1905285
Publication status	Published - 5 Apr 2005
Event	Nuclei at the Limits - Argonne, IL, United States Duration: 26 Jul 2004 → 30 Jul 2004

Publication series

Name	AIP Conference Proceedings
Volume	764
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	Nuclei at the Limits
Country/Territory	United States
City	Argonne, IL
Period	26/07/04 → 30/07/04

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10.1063/1.1905285

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Hartley, D. J., Djongolov, M. K., Riedinger, L. L., Hagemann, G. B., Janssens, R. V. F., Kondev, F. G., Moore, E. F., Riley, M. A., Aguilar, A. A., Bingham, C. R., Campbell, D. B., Carpenter, M. P., Chowdhury, P., Cromaz, M., Cullen, D. M., Danchev, M., Dracoulis, G. D., Fallon, P., Goon, J., ... Zhang, J. Y. (2005). Search for wobbling excitations in Hf nuclei: Are the SD bands triaxial? In NUCLEI AT THE LIMITS (pp. 15-20). (AIP Conference Proceedings; Vol. 764). https://doi.org/10.1063/1.1905285

@inproceedings{3d06dd48d4384771a65433acfc09f5b8,

title = "Search for wobbling excitations in Hf nuclei: Are the SD bands triaxial?",

abstract = "Two Gammasphere experiments have been performed in order to establish the possible triaxial nature of strongly deformed (SD) bands in 174Hf. A lifetime measurement confirmed the large deformation of the four previously observed bands in this nucleus. In addition, a thin-target, high-statistics experiment was carried out to search for linking transitions between the SD bands. No such transitions, which represent an experimental signature for wobbling modes, were observed. Four new SD bands were found in 174Hf together with a single SD band in 173Hf. These results indicate that the strongly deformed sequences of N ≈ 102 Hf isotopes behave differently than the TSD bands found in Lu nuclei near N = 92. The interpretation of these bands in terms of possible stable triaxial deformation is confronted with the experimental findings and UC predictions.",

author = "Hartley, {D. J.} and Djongolov, {M. K.} and Riedinger, {L. L.} and Hagemann, {G. B.} and Janssens, {R. V.F.} and Kondev, {F. G.} and Moore, {E. F.} and Riley, {M. A.} and Aguilar, {A. A.} and Bingham, {C. R.} and Campbell, {D. B.} and Carpenter, {M. P.} and P. Chowdhury and M. Cromaz and Cullen, {D. M.} and M. Danchev and Dracoulis, {G. D.} and P. Fallon and J. Goon and Kaye, {R. A.} and Khoo, {T. L.} and Laird, {R. W.} and T. Lauritsen and MacChiavelli, {A. O.} and B. McClain and G. Mukherjee and E. Ngijoi-Yogo and Park, {H. I.} and G. Sletten and Tandel, {S. K.} and Walker, {P. M.} and Zhang, {Jing Ye}",

year = "2005",

month = apr,

day = "5",

doi = "10.1063/1.1905285",

language = "English",

isbn = "0735402493",

series = "AIP Conference Proceedings",

pages = "15--20",

booktitle = "NUCLEI AT THE LIMITS",

note = "Nuclei at the Limits ; Conference date: 26-07-2004 Through 30-07-2004",

}

Hartley, DJ, Djongolov, MK, Riedinger, LL, Hagemann, GB, Janssens, RVF, Kondev, FG, Moore, EF, Riley, MA, Aguilar, AA, Bingham, CR, Campbell, DB, Carpenter, MP, Chowdhury, P, Cromaz, M, Cullen, DM, Danchev, M, Dracoulis, GD, Fallon, P, Goon, J, Kaye, RA, Khoo, TL, Laird, RW, Lauritsen, T, MacChiavelli, AO, McClain, B, Mukherjee, G, Ngijoi-Yogo, E, Park, HI, Sletten, G, Tandel, SK, Walker, PM & Zhang, JY 2005, Search for wobbling excitations in Hf nuclei: Are the SD bands triaxial? in NUCLEI AT THE LIMITS. AIP Conference Proceedings, vol. 764, pp. 15-20, Nuclei at the Limits, Argonne, IL, United States, 26/07/04. https://doi.org/10.1063/1.1905285

TY - GEN

T1 - Search for wobbling excitations in Hf nuclei

T2 - Nuclei at the Limits

AU - Hartley, D. J.

AU - Djongolov, M. K.

AU - Riedinger, L. L.

AU - Hagemann, G. B.

AU - Janssens, R. V.F.

AU - Kondev, F. G.

AU - Moore, E. F.

AU - Riley, M. A.

AU - Aguilar, A. A.

AU - Bingham, C. R.

AU - Campbell, D. B.

AU - Carpenter, M. P.

AU - Chowdhury, P.

AU - Cromaz, M.

AU - Cullen, D. M.

AU - Danchev, M.

AU - Dracoulis, G. D.

AU - Fallon, P.

AU - Goon, J.

AU - Kaye, R. A.

AU - Khoo, T. L.

AU - Laird, R. W.

AU - Lauritsen, T.

AU - MacChiavelli, A. O.

AU - McClain, B.

AU - Mukherjee, G.

AU - Ngijoi-Yogo, E.

AU - Park, H. I.

AU - Sletten, G.

AU - Tandel, S. K.

AU - Walker, P. M.

AU - Zhang, Jing Ye

PY - 2005/4/5

Y1 - 2005/4/5

N2 - Two Gammasphere experiments have been performed in order to establish the possible triaxial nature of strongly deformed (SD) bands in 174Hf. A lifetime measurement confirmed the large deformation of the four previously observed bands in this nucleus. In addition, a thin-target, high-statistics experiment was carried out to search for linking transitions between the SD bands. No such transitions, which represent an experimental signature for wobbling modes, were observed. Four new SD bands were found in 174Hf together with a single SD band in 173Hf. These results indicate that the strongly deformed sequences of N ≈ 102 Hf isotopes behave differently than the TSD bands found in Lu nuclei near N = 92. The interpretation of these bands in terms of possible stable triaxial deformation is confronted with the experimental findings and UC predictions.

AB - Two Gammasphere experiments have been performed in order to establish the possible triaxial nature of strongly deformed (SD) bands in 174Hf. A lifetime measurement confirmed the large deformation of the four previously observed bands in this nucleus. In addition, a thin-target, high-statistics experiment was carried out to search for linking transitions between the SD bands. No such transitions, which represent an experimental signature for wobbling modes, were observed. Four new SD bands were found in 174Hf together with a single SD band in 173Hf. These results indicate that the strongly deformed sequences of N ≈ 102 Hf isotopes behave differently than the TSD bands found in Lu nuclei near N = 92. The interpretation of these bands in terms of possible stable triaxial deformation is confronted with the experimental findings and UC predictions.

UR - http://www.scopus.com/inward/record.url?scp=33749010101&partnerID=8YFLogxK

U2 - 10.1063/1.1905285

DO - 10.1063/1.1905285

M3 - Conference contribution

SN - 0735402493

SN - 9780735402492

T3 - AIP Conference Proceedings

SP - 15

EP - 20

BT - NUCLEI AT THE LIMITS

Y2 - 26 July 2004 through 30 July 2004

ER -

Search for wobbling excitations in Hf nuclei: Are the SD bands triaxial?

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