Study of excited states and observation of collective level structures in the odd–odd nucleus 194 Bi

A. Herzáň; S. Juutinen; K. Auranen; T. Grahn; P. T. Greenlees; K. Hauschild; U. Jakobsson; R. Julin; S. Ketelhut; M. Leino; A. Lopez-Martens; T. Lönnroth; P. Nieminen; M. Nyman; J. Partanen; P. Peura; P. Rahkila; P. Ruotsalainen; M. Sandzelius; J. Sarén; C. Scholey; J. M.K. Slotte; J. Sorri; S. Stolze; J. Uusitalo

doi:10.1140/epja/s10050-020-00167-z

Study of excited states and observation of collective level structures in the odd–odd nucleus ¹⁹⁴ Bi

A. Herzáň^*
, S. Juutinen
, K. Auranen
, T. Grahn
, P. T. Greenlees
, K. Hauschild
, U. Jakobsson
, R. Julin
, S. Ketelhut
, M. Leino
, A. Lopez-Martens
, T. Lönnroth
, P. Nieminen
, M. Nyman
, J. Partanen
, P. Peura
, P. Rahkila
, P. Ruotsalainen
, M. Sandzelius
, J. Sarén

C. Scholey, J. M.K. Slotte, J. Sorri, S. Stolze, J. Uusitalo

^*Corresponding author for this work

Physics

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

4 Citations (Scopus)

Abstract

High-spin states of the odd–odd ¹⁹⁴Bi nucleus have been studied by means of nuclear spectroscopy for the first time. Two low-lying rotational bands were observed. The positive-parity band built on a short-lived isomeric state 633 keV above the α and β decaying long-lived (10^-) state is assigned a πi13/2⊗νi13/2-1 configuration, while the other band is attributed to the πh9/2⊗νi13/2-1 configuration. Both of these bands are assumed to have oblate shape. Three band-like structures composed predominantly of Δ I= 1 transitions were also found. One of the shears band candidates is firmly linked to the lower lying level structures whereas for the other two links to lower-lying structures remain missing.

Original language	English
Article number	165
Journal	European Physical Journal A
Volume	56
Issue number	6
DOIs	https://doi.org/10.1140/epja/s10050-020-00167-z
Publication status	Published - 10 Jun 2020
MoE publication type	A1 Journal article-refereed

Funding

We would like to thank the personnel at the Accelerator Laboratory of the University of Jyväskylä. AH would like to thank the Slovak Research and Development Agency under contract No. APVV-15-0225, Slovak grant agency VEGA (contract No. 2/0129/17), and the project ITMS code 26210120023, supported by the Research and Development Operational Programme funded by ERDF (30). Fruitful discussions with John L. Wood are much appreciated. This work was also supported by the United Kingdom Science and Technology Facilities Council (STFC) and by the Academy of Finland under the Finnish CoE Programme. The authors would like to thank the GAMMAPOOL European Spectroscopy Resource for the loan of germanium detectors for JUROGAM II.

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Herzáň, A., Juutinen, S., Auranen, K., Grahn, T., Greenlees, P. T., Hauschild, K., Jakobsson, U., Julin, R., Ketelhut, S., Leino, M., Lopez-Martens, A., Lönnroth, T., Nieminen, P., Nyman, M., Partanen, J., Peura, P., Rahkila, P., Ruotsalainen, P., Sandzelius, M., ... Uusitalo, J. (2020). Study of excited states and observation of collective level structures in the odd–odd nucleus ¹⁹⁴ Bi. European Physical Journal A, 56(6), Article 165. https://doi.org/10.1140/epja/s10050-020-00167-z

@article{e2af2060f2414b5fb7c19e423997ff50,

title = "Study of excited states and observation of collective level structures in the odd–odd nucleus 194 Bi",

abstract = "High-spin states of the odd–odd 194Bi nucleus have been studied by means of nuclear spectroscopy for the first time. Two low-lying rotational bands were observed. The positive-parity band built on a short-lived isomeric state 633 keV above the α and β decaying long-lived (10-) state is assigned a πi13/2⊗νi13/2-1 configuration, while the other band is attributed to the πh9/2⊗νi13/2-1 configuration. Both of these bands are assumed to have oblate shape. Three band-like structures composed predominantly of Δ I= 1 transitions were also found. One of the shears band candidates is firmly linked to the lower lying level structures whereas for the other two links to lower-lying structures remain missing.",

author = "A. Herz{\'a}{\v n} and S. Juutinen and K. Auranen and T. Grahn and Greenlees, \{P. T.\} and K. Hauschild and U. Jakobsson and R. Julin and S. Ketelhut and M. Leino and A. Lopez-Martens and T. L{\"o}nnroth and P. Nieminen and M. Nyman and J. Partanen and P. Peura and P. Rahkila and P. Ruotsalainen and M. Sandzelius and J. Sar{\'e}n and C. Scholey and Slotte, \{J. M.K.\} and J. Sorri and S. Stolze and J. Uusitalo",

note = "Funding Information: We would like to thank the personnel at the Accelerator Laboratory of the University of Jyv{\"a}skyl{\"a}. AH would like to thank the Slovak Research and Development Agency under contract No. APVV-15-0225, Slovak grant agency VEGA (contract No. 2/0129/17), and the project ITMS code 26210120023, supported by the Research and Development Operational Programme funded by ERDF (30). Fruitful discussions with John L. Wood are much appreciated. This work was also supported by the United Kingdom Science and Technology Facilities Council (STFC) and by the Academy of Finland under the Finnish CoE Programme. The authors would like to thank the GAMMAPOOL European Spectroscopy Resource for the loan of germanium detectors for JUROGAM II. Publisher Copyright: {\textcopyright} 2020, Societ{\`a} Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

month = jun,

day = "10",

doi = "10.1140/epja/s10050-020-00167-z",

language = "English",

volume = "56",

journal = "European Physical Journal A",

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Herzáň, A, Juutinen, S, Auranen, K, Grahn, T, Greenlees, PT, Hauschild, K, Jakobsson, U, Julin, R, Ketelhut, S, Leino, M, Lopez-Martens, A, Lönnroth, T, Nieminen, P, Nyman, M, Partanen, J, Peura, P, Rahkila, P, Ruotsalainen, P, Sandzelius, M, Sarén, J, Scholey, C, Slotte, JMK, Sorri, J, Stolze, S & Uusitalo, J 2020, 'Study of excited states and observation of collective level structures in the odd–odd nucleus ¹⁹⁴ Bi', European Physical Journal A, vol. 56, no. 6, 165. https://doi.org/10.1140/epja/s10050-020-00167-z

TY - JOUR

T1 - Study of excited states and observation of collective level structures in the odd–odd nucleus 194 Bi

AU - Herzáň, A.

AU - Juutinen, S.

AU - Auranen, K.

AU - Grahn, T.

AU - Greenlees, P. T.

AU - Hauschild, K.

AU - Jakobsson, U.

AU - Julin, R.

AU - Ketelhut, S.

AU - Leino, M.

AU - Lopez-Martens, A.

AU - Lönnroth, T.

AU - Nieminen, P.

AU - Nyman, M.

AU - Partanen, J.

AU - Peura, P.

AU - Rahkila, P.

AU - Ruotsalainen, P.

AU - Sandzelius, M.

AU - Sarén, J.

AU - Scholey, C.

AU - Slotte, J. M.K.

AU - Sorri, J.

AU - Stolze, S.

AU - Uusitalo, J.

N1 - Funding Information: We would like to thank the personnel at the Accelerator Laboratory of the University of Jyväskylä. AH would like to thank the Slovak Research and Development Agency under contract No. APVV-15-0225, Slovak grant agency VEGA (contract No. 2/0129/17), and the project ITMS code 26210120023, supported by the Research and Development Operational Programme funded by ERDF (30). Fruitful discussions with John L. Wood are much appreciated. This work was also supported by the United Kingdom Science and Technology Facilities Council (STFC) and by the Academy of Finland under the Finnish CoE Programme. The authors would like to thank the GAMMAPOOL European Spectroscopy Resource for the loan of germanium detectors for JUROGAM II. Publisher Copyright: © 2020, Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/6/10

Y1 - 2020/6/10

N2 - High-spin states of the odd–odd 194Bi nucleus have been studied by means of nuclear spectroscopy for the first time. Two low-lying rotational bands were observed. The positive-parity band built on a short-lived isomeric state 633 keV above the α and β decaying long-lived (10-) state is assigned a πi13/2⊗νi13/2-1 configuration, while the other band is attributed to the πh9/2⊗νi13/2-1 configuration. Both of these bands are assumed to have oblate shape. Three band-like structures composed predominantly of Δ I= 1 transitions were also found. One of the shears band candidates is firmly linked to the lower lying level structures whereas for the other two links to lower-lying structures remain missing.

AB - High-spin states of the odd–odd 194Bi nucleus have been studied by means of nuclear spectroscopy for the first time. Two low-lying rotational bands were observed. The positive-parity band built on a short-lived isomeric state 633 keV above the α and β decaying long-lived (10-) state is assigned a πi13/2⊗νi13/2-1 configuration, while the other band is attributed to the πh9/2⊗νi13/2-1 configuration. Both of these bands are assumed to have oblate shape. Three band-like structures composed predominantly of Δ I= 1 transitions were also found. One of the shears band candidates is firmly linked to the lower lying level structures whereas for the other two links to lower-lying structures remain missing.

UR - https://www.scopus.com/pages/publications/85086251078

U2 - 10.1140/epja/s10050-020-00167-z

DO - 10.1140/epja/s10050-020-00167-z

M3 - Article

AN - SCOPUS:85086251078

SN - 1434-6001

VL - 56

JO - European Physical Journal A

JF - European Physical Journal A

IS - 6

M1 - 165

ER -

Study of excited states and observation of collective level structures in the odd–odd nucleus ¹⁹⁴ Bi

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