One- and two-phonon wobbling excitations in triaxial 165Lu

G. Schönwasser; H. Hübel; G.B. Hagemann; P. Bednarczyk; G. Benzoni; A. Bracco; P. Bringel; R. Chapman; D. Curien; J. Domscheit; B. Herskind; D.R. Jensen; S. Leoni; G. Lo Bianco; W.C. Ma; A. Maj; A. Neusser; S.W. Ødegård; C.M. Petrache; D. Rossbach; H. Ryde; K.H. Spohr; A.K. Singh

doi:10.1016/S0370-2693(02)03095-2

One- and two-phonon wobbling excitations in triaxial 165Lu

G. Schönwasser, H. Hübel, G.B. Hagemann, P. Bednarczyk, G. Benzoni, A. Bracco, P. Bringel, R. Chapman, D. Curien, J. Domscheit, B. Herskind, D.R. Jensen, S. Leoni, G. Lo Bianco, W.C. Ma, A. Maj, A. Neusser, S.W. Ødegård, C.M. Petrache, D. RossbachH. Ryde, K.H. Spohr, A.K. Singh

Research output: Contribution to journal › Article › peer-review

140 Citations (Scopus)

Abstract

High-spin states in 165Lu have been investigated by in-beam γ-ray coincidence spectroscopy using the EUROBALL spectrometer array. Two new excited rotational bands have been discovered with features similar to a previously known triaxial superdeformed band in that nucleus. Comparison of the decay pattern of these bands, in particular the unusually large E2 transition strength from the first excited to the yrast superdeformed band, to theoretical calculations shows that they belong to a family of wobbling excitations with phonon numbers nw=0, 1 and 2. These results, together with evidence for nuclear wobbling in the neighbouring isotopes 163Lu and 167Lu, firmly establish this mode of excitation in the A=165 mass region. The observation of wobbling is a unique signature of stable nuclear triaxiality.

Original language	English
Pages (from-to)	9-16
Number of pages	8
Journal	Physics Letters B
Volume	552
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)03095-2
Publication status	Published - 16 Jan 2003

Keywords

nuclear energy levels
triaxial superdeformation
wobbling excitation

Access to Document

10.1016/S0370-2693(02)03095-2

Cite this

Schönwasser, G., Hübel, H., Hagemann, G. B., Bednarczyk, P., Benzoni, G., Bracco, A., Bringel, P., Chapman, R., Curien, D., Domscheit, J., Herskind, B., Jensen, D. R., Leoni, S., Lo Bianco, G., Ma, W. C., Maj, A., Neusser, A., Ødegård, S. W., Petrache, C. M., ... Singh, A. K. (2003). One- and two-phonon wobbling excitations in triaxial 165Lu. Physics Letters B, 552(1-2), 9-16. https://doi.org/10.1016/S0370-2693(02)03095-2

@article{6619d66b14954d1298099d9e206c7b5d,

title = "One- and two-phonon wobbling excitations in triaxial 165Lu",

abstract = "High-spin states in 165Lu have been investigated by in-beam γ-ray coincidence spectroscopy using the EUROBALL spectrometer array. Two new excited rotational bands have been discovered with features similar to a previously known triaxial superdeformed band in that nucleus. Comparison of the decay pattern of these bands, in particular the unusually large E2 transition strength from the first excited to the yrast superdeformed band, to theoretical calculations shows that they belong to a family of wobbling excitations with phonon numbers nw=0, 1 and 2. These results, together with evidence for nuclear wobbling in the neighbouring isotopes 163Lu and 167Lu, firmly establish this mode of excitation in the A=165 mass region. The observation of wobbling is a unique signature of stable nuclear triaxiality.",

keywords = "nuclear energy levels, triaxial superdeformation, wobbling excitation",

author = "G. Sch{\"o}nwasser and H. H{\"u}bel and G.B. Hagemann and P. Bednarczyk and G. Benzoni and A. Bracco and P. Bringel and R. Chapman and D. Curien and J. Domscheit and B. Herskind and D.R. Jensen and S. Leoni and {Lo Bianco}, G. and W.C. Ma and A. Maj and A. Neusser and S.W. {\O}deg{\aa}rd and C.M. Petrache and D. Rossbach and H. Ryde and K.H. Spohr and A.K. Singh",

year = "2003",

month = jan,

day = "16",

doi = "10.1016/S0370-2693(02)03095-2",

language = "English",

volume = "552",

pages = "9--16",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Schönwasser, G, Hübel, H, Hagemann, GB, Bednarczyk, P, Benzoni, G, Bracco, A, Bringel, P, Chapman, R, Curien, D, Domscheit, J, Herskind, B, Jensen, DR, Leoni, S, Lo Bianco, G, Ma, WC, Maj, A, Neusser, A, Ødegård, SW, Petrache, CM, Rossbach, D, Ryde, H, Spohr, KH & Singh, AK 2003, 'One- and two-phonon wobbling excitations in triaxial 165Lu', Physics Letters B, vol. 552, no. 1-2, pp. 9-16. https://doi.org/10.1016/S0370-2693(02)03095-2

TY - JOUR

T1 - One- and two-phonon wobbling excitations in triaxial 165Lu

AU - Schönwasser, G.

AU - Hübel, H.

AU - Hagemann, G.B.

AU - Bednarczyk, P.

AU - Benzoni, G.

AU - Bracco, A.

AU - Bringel, P.

AU - Chapman, R.

AU - Curien, D.

AU - Domscheit, J.

AU - Herskind, B.

AU - Jensen, D.R.

AU - Leoni, S.

AU - Lo Bianco, G.

AU - Ma, W.C.

AU - Maj, A.

AU - Neusser, A.

AU - Ødegård, S.W.

AU - Petrache, C.M.

AU - Rossbach, D.

AU - Ryde, H.

AU - Spohr, K.H.

AU - Singh, A.K.

PY - 2003/1/16

Y1 - 2003/1/16

N2 - High-spin states in 165Lu have been investigated by in-beam γ-ray coincidence spectroscopy using the EUROBALL spectrometer array. Two new excited rotational bands have been discovered with features similar to a previously known triaxial superdeformed band in that nucleus. Comparison of the decay pattern of these bands, in particular the unusually large E2 transition strength from the first excited to the yrast superdeformed band, to theoretical calculations shows that they belong to a family of wobbling excitations with phonon numbers nw=0, 1 and 2. These results, together with evidence for nuclear wobbling in the neighbouring isotopes 163Lu and 167Lu, firmly establish this mode of excitation in the A=165 mass region. The observation of wobbling is a unique signature of stable nuclear triaxiality.

AB - High-spin states in 165Lu have been investigated by in-beam γ-ray coincidence spectroscopy using the EUROBALL spectrometer array. Two new excited rotational bands have been discovered with features similar to a previously known triaxial superdeformed band in that nucleus. Comparison of the decay pattern of these bands, in particular the unusually large E2 transition strength from the first excited to the yrast superdeformed band, to theoretical calculations shows that they belong to a family of wobbling excitations with phonon numbers nw=0, 1 and 2. These results, together with evidence for nuclear wobbling in the neighbouring isotopes 163Lu and 167Lu, firmly establish this mode of excitation in the A=165 mass region. The observation of wobbling is a unique signature of stable nuclear triaxiality.

KW - nuclear energy levels

KW - triaxial superdeformation

KW - wobbling excitation

U2 - 10.1016/S0370-2693(02)03095-2

DO - 10.1016/S0370-2693(02)03095-2

M3 - Article

SN - 0370-2693

VL - 552

SP - 9

EP - 16

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

One- and two-phonon wobbling excitations in triaxial 165Lu

Abstract

Keywords

Access to Document

Fingerprint

Cite this