First candidates for γvibrational bands built on the [505]11/2- neutron orbital in odd- A Dy isotopes

S. N.T. Majola; M. A. Sithole; L. Mdletshe; D. Hartley; J. Timár; B. M. Nyakó; J. M. Allmond; R. A. Bark; C. Beausang; L. Bianco; T. D. Bucher; S. P. Bvumbi; M. P. Carpenter; C. J. Chiara; N. Cooper; D. M. Cullen; D. Curien; T. S. Dinoko; B. J.P. Gall; P. E. Garrett; P. T. Greenlees; J. Hirvonen; U. Jakobsson; P. M. Jones; R. Julin; S. Juutinen; S. Ketelhut; B. V. Kheswa; F. G. Kondev; A. Korichi; W. D. Kulp; T. Lauritsen; E. A. Lawrie; L. Makhathini; P. L. Masiteng; B. Maqabuka; E. A. McCutchan; D. Miller; S. Miller; A. Minkova; L. Msebi; S. H. Mthembu; J. Ndayishimye; P. Nieminen; P. Z. Ngcobo; S. S. Ntshangase; J. N. Orce; P. Peura; P. Rahkila; N. Redon; L. L. Riedinger; M. A. Riley; D. G. Roux; P. Ruotsalainen; J. Piot; J. Saren; J. F. Sharpey-Schafer; C. Scholey; O. Shirinda; J. Simpson; J. Sorri; I. Stefanescu; S. Stolze; J. Uusitalo; X. Wang; V. Werner; J. L. Wood; C. H. Yu; S. Zhu; G. Zimba

doi:10.1103/PhysRevC.101.044312

First candidates for γvibrational bands built on the [505]11/2- neutron orbital in odd- A Dy isotopes

S. N.T. Majola, M. A. Sithole, L. Mdletshe, D. Hartley, J. Timár, B. M. Nyakó, J. M. Allmond, R. A. Bark, C. Beausang, L. Bianco, T. D. Bucher, S. P. Bvumbi, M. P. Carpenter, C. J. Chiara, N. Cooper, D. M. Cullen, D. Curien, T. S. Dinoko, B. J.P. Gall, P. E. GarrettP. T. Greenlees, J. Hirvonen, U. Jakobsson, P. M. Jones, R. Julin, S. Juutinen, S. Ketelhut, B. V. Kheswa, F. G. Kondev, A. Korichi, W. D. Kulp, T. Lauritsen, E. A. Lawrie, L. Makhathini, P. L. Masiteng, B. Maqabuka, E. A. McCutchan, D. Miller, S. Miller, A. Minkova, L. Msebi, S. H. Mthembu, J. Ndayishimye, P. Nieminen, P. Z. Ngcobo, S. S. Ntshangase, J. N. Orce, P. Peura, P. Rahkila, N. Redon, L. L. Riedinger, M. A. Riley, D. G. Roux, P. Ruotsalainen, J. Piot, J. Saren, J. F. Sharpey-Schafer, C. Scholey, O. Shirinda, J. Simpson, J. Sorri, I. Stefanescu, S. Stolze, J. Uusitalo, X. Wang, V. Werner, J. L. Wood, C. H. Yu, S. Zhu, G. Zimba

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Abstract

Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the Gd155(α,2n)Dy157 and Nd148(C12,5n)Dy155 reactions at 25 and 65 MeV, respectively. We report high-K bands, which are conjectured to be the first candidates of a Kπ=2+γ vibrational band, built on the [505]11/2- neutron orbital, in both odd-ADy155,157 isotopes. The coupling of the first excited K=0+ states or the so-called β vibrational bands at 661 and 676 keV in Dy154 and Dy156 to the [505]11/2- orbital, to produce a Kπ=11/2- band, was not observed in both Dy155 and Dy157, respectively. The implication of these findings on the interpretation of the first excited 0+ states in the core nuclei Dy154 and Dy156 are also discussed.

Original language	English
Article number	044312
Journal	Physical Review C
Volume	101
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.101.044312
State	Published - Apr 2020

Funding

This work is supported by the South African National Research Foundation under Grants No. 96829, No. 109711, and No. 106012). Support for L.B. and P.E.G. was provided by the Natural Sciences and Engineering Research Council of Canada. V.W. wishes to acknowledge support provided by the German Federal Ministry for education and Research under Grant No. 05P19RDFN1. Support was also provided by the U.S. National Science Foundation under Grants No. PHY-1203100 (USNA), No. PHY-1502092 (USNA), and No. PHY\u20130754674 (FSU) as well as by the U.S. Department of energy, Office of Nuclear of Nuclear Physics, under Contracts No. DE-AC02-06CH11357 (ANL) and No. DE-FG02-91ER-40609 (Yale). The authors also acknowledge the support of GAMMAPOOL for the loan of the JUROGAM detectors. JYFL research is supported by the Academy of Finland under the Finnish Centre of Excellence Programme 2006\u20132011, Contract No. 213503. This work was also partially supported by the National Research, Development and Innovation Fund of Hungary, financed under the K18 funding scheme with Project No. K128947, as well as by the European Regional Development Fund (Contract No. GINOP\u20132.3.3\u201315\u20132016\u201300034).

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10.1103/PhysRevC.101.044312

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Majola, S. N. T., Sithole, M. A., Mdletshe, L., Hartley, D., Timár, J., Nyakó, B. M., Allmond, J. M., Bark, R. A., Beausang, C., Bianco, L., Bucher, T. D., Bvumbi, S. P., Carpenter, M. P., Chiara, C. J., Cooper, N., Cullen, D. M., Curien, D., Dinoko, T. S., Gall, B. J. P., ... Zimba, G. (2020). First candidates for γvibrational bands built on the [505]11/2- neutron orbital in odd- A Dy isotopes. Physical Review C, 101(4), Article 044312. https://doi.org/10.1103/PhysRevC.101.044312

@article{94f9fc8a27fa4484b4eaecd39a34782a,

title = "First candidates for γvibrational bands built on the [505]11/2- neutron orbital in odd- A Dy isotopes",

abstract = "Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the Gd155(α,2n)Dy157 and Nd148(C12,5n)Dy155 reactions at 25 and 65 MeV, respectively. We report high-K bands, which are conjectured to be the first candidates of a Kπ=2+γ vibrational band, built on the [505]11/2- neutron orbital, in both odd-ADy155,157 isotopes. The coupling of the first excited K=0+ states or the so-called β vibrational bands at 661 and 676 keV in Dy154 and Dy156 to the [505]11/2- orbital, to produce a Kπ=11/2- band, was not observed in both Dy155 and Dy157, respectively. The implication of these findings on the interpretation of the first excited 0+ states in the core nuclei Dy154 and Dy156 are also discussed.",

author = "Majola, {S. N.T.} and Sithole, {M. A.} and L. Mdletshe and D. Hartley and J. Tim{\'a}r and Nyak{\'o}, {B. M.} and Allmond, {J. M.} and Bark, {R. A.} and C. Beausang and L. Bianco and Bucher, {T. D.} and Bvumbi, {S. P.} and Carpenter, {M. P.} and Chiara, {C. J.} and N. Cooper and Cullen, {D. M.} and D. Curien and Dinoko, {T. S.} and Gall, {B. J.P.} and Garrett, {P. E.} and Greenlees, {P. T.} and J. Hirvonen and U. Jakobsson and Jones, {P. M.} and R. Julin and S. Juutinen and S. Ketelhut and Kheswa, {B. V.} and Kondev, {F. G.} and A. Korichi and Kulp, {W. D.} and T. Lauritsen and Lawrie, {E. A.} and L. Makhathini and Masiteng, {P. L.} and B. Maqabuka and McCutchan, {E. A.} and D. Miller and S. Miller and A. Minkova and L. Msebi and Mthembu, {S. H.} and J. Ndayishimye and P. Nieminen and Ngcobo, {P. Z.} and Ntshangase, {S. S.} and Orce, {J. N.} and P. Peura and P. Rahkila and N. Redon and Riedinger, {L. L.} and Riley, {M. A.} and Roux, {D. G.} and P. Ruotsalainen and J. Piot and J. Saren and Sharpey-Schafer, {J. F.} and C. Scholey and O. Shirinda and J. Simpson and J. Sorri and I. Stefanescu and S. Stolze and J. Uusitalo and X. Wang and V. Werner and Wood, {J. L.} and Yu, {C. H.} and S. Zhu and G. Zimba",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

year = "2020",

month = apr,

doi = "10.1103/PhysRevC.101.044312",

language = "English",

volume = "101",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "4",

}

Majola, SNT, Sithole, MA, Mdletshe, L, Hartley, D, Timár, J, Nyakó, BM, Allmond, JM, Bark, RA, Beausang, C, Bianco, L, Bucher, TD, Bvumbi, SP, Carpenter, MP, Chiara, CJ, Cooper, N, Cullen, DM, Curien, D, Dinoko, TS, Gall, BJP, Garrett, PE, Greenlees, PT, Hirvonen, J, Jakobsson, U, Jones, PM, Julin, R, Juutinen, S, Ketelhut, S, Kheswa, BV, Kondev, FG, Korichi, A, Kulp, WD, Lauritsen, T, Lawrie, EA, Makhathini, L, Masiteng, PL, Maqabuka, B, McCutchan, EA, Miller, D, Miller, S, Minkova, A, Msebi, L, Mthembu, SH, Ndayishimye, J, Nieminen, P, Ngcobo, PZ, Ntshangase, SS, Orce, JN, Peura, P, Rahkila, P, Redon, N, Riedinger, LL, Riley, MA, Roux, DG, Ruotsalainen, P, Piot, J, Saren, J, Sharpey-Schafer, JF, Scholey, C, Shirinda, O, Simpson, J, Sorri, J, Stefanescu, I, Stolze, S, Uusitalo, J, Wang, X, Werner, V, Wood, JL, Yu, CH, Zhu, S & Zimba, G 2020, 'First candidates for γvibrational bands built on the [505]11/2- neutron orbital in odd- A Dy isotopes', Physical Review C, vol. 101, no. 4, 044312. https://doi.org/10.1103/PhysRevC.101.044312

TY - JOUR

T1 - First candidates for γvibrational bands built on the [505]11/2- neutron orbital in odd- A Dy isotopes

AU - Majola, S. N.T.

AU - Sithole, M. A.

AU - Mdletshe, L.

AU - Hartley, D.

AU - Timár, J.

AU - Nyakó, B. M.

AU - Allmond, J. M.

AU - Bark, R. A.

AU - Beausang, C.

AU - Bianco, L.

AU - Bucher, T. D.

AU - Bvumbi, S. P.

AU - Carpenter, M. P.

AU - Chiara, C. J.

AU - Cooper, N.

AU - Cullen, D. M.

AU - Curien, D.

AU - Dinoko, T. S.

AU - Gall, B. J.P.

AU - Garrett, P. E.

AU - Greenlees, P. T.

AU - Hirvonen, J.

AU - Jakobsson, U.

AU - Jones, P. M.

AU - Julin, R.

AU - Juutinen, S.

AU - Ketelhut, S.

AU - Kheswa, B. V.

AU - Kondev, F. G.

AU - Korichi, A.

AU - Kulp, W. D.

AU - Lauritsen, T.

AU - Lawrie, E. A.

AU - Makhathini, L.

AU - Masiteng, P. L.

AU - Maqabuka, B.

AU - McCutchan, E. A.

AU - Miller, D.

AU - Miller, S.

AU - Minkova, A.

AU - Msebi, L.

AU - Mthembu, S. H.

AU - Ndayishimye, J.

AU - Nieminen, P.

AU - Ngcobo, P. Z.

AU - Ntshangase, S. S.

AU - Orce, J. N.

AU - Peura, P.

AU - Rahkila, P.

AU - Redon, N.

AU - Riedinger, L. L.

AU - Riley, M. A.

AU - Roux, D. G.

AU - Ruotsalainen, P.

AU - Piot, J.

AU - Saren, J.

AU - Sharpey-Schafer, J. F.

AU - Scholey, C.

AU - Shirinda, O.

AU - Simpson, J.

AU - Sorri, J.

AU - Stefanescu, I.

AU - Stolze, S.

AU - Uusitalo, J.

AU - Wang, X.

AU - Werner, V.

AU - Wood, J. L.

AU - Yu, C. H.

AU - Zhu, S.

AU - Zimba, G.

PY - 2020/4

Y1 - 2020/4

N2 - Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the Gd155(α,2n)Dy157 and Nd148(C12,5n)Dy155 reactions at 25 and 65 MeV, respectively. We report high-K bands, which are conjectured to be the first candidates of a Kπ=2+γ vibrational band, built on the [505]11/2- neutron orbital, in both odd-ADy155,157 isotopes. The coupling of the first excited K=0+ states or the so-called β vibrational bands at 661 and 676 keV in Dy154 and Dy156 to the [505]11/2- orbital, to produce a Kπ=11/2- band, was not observed in both Dy155 and Dy157, respectively. The implication of these findings on the interpretation of the first excited 0+ states in the core nuclei Dy154 and Dy156 are also discussed.

AB - Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the Gd155(α,2n)Dy157 and Nd148(C12,5n)Dy155 reactions at 25 and 65 MeV, respectively. We report high-K bands, which are conjectured to be the first candidates of a Kπ=2+γ vibrational band, built on the [505]11/2- neutron orbital, in both odd-ADy155,157 isotopes. The coupling of the first excited K=0+ states or the so-called β vibrational bands at 661 and 676 keV in Dy154 and Dy156 to the [505]11/2- orbital, to produce a Kπ=11/2- band, was not observed in both Dy155 and Dy157, respectively. The implication of these findings on the interpretation of the first excited 0+ states in the core nuclei Dy154 and Dy156 are also discussed.

UR - http://www.scopus.com/inward/record.url?scp=85084978541&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.101.044312

DO - 10.1103/PhysRevC.101.044312

M3 - Article

AN - SCOPUS:85084978541

SN - 2469-9985

VL - 101

JO - Physical Review C

JF - Physical Review C

IS - 4

M1 - 044312

ER -

First candidates for γvibrational bands built on the [505]11/2- neutron orbital in odd- A Dy isotopes

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