Population of a low-spin positive-parity band from high-spin intruder states in 177Au: the two-state mixing effect

M. Venhart; M. Balogh; A. Herzáň; J.L. Wood; F.A. Ali; D.T. Joss; A.N. Andreyev; K. Auranen; R.J. Carroll; M.C. Drummond; J.L. Easton; P.T. Greenlees; T. Grahn; A. Gredley; J. Henderson; U. Jakobsson; R. Julin; S. Juutinen; J. Konki; E.A. Lawrie; M. Leino; V. Matoušek; C.G. McPeake; D. O'Donnell; R.D. Page; J. Pakarinen; J. Partanen; P. Papadakis; P. Peura; P. Rahkila; P. Ruotsalainen; M. Sandzelius; J. Sarén; B. Saygı; M. Sedlák; C. Scholey; J. Sorri; S. Stolze; A. Thornthwaite; R. Urban; J. Uusitalo; M. Veselský; F.P. Wearing

doi:10.1016/j.physletb.2020.135488

Population of a low-spin positive-parity band from high-spin intruder states in ¹⁷⁷Au: the two-state mixing effect

M. Venhart^*, M. Balogh, A. Herzáň, J.L. Wood, F.A. Ali, D.T. Joss, A.N. Andreyev, K. Auranen, R.J. Carroll, M.C. Drummond, J.L. Easton, P.T. Greenlees, T. Grahn, A. Gredley, J. Henderson, U. Jakobsson, R. Julin, S. Juutinen, J. Konki, E.A. LawrieM. Leino, V. Matoušek, C.G. McPeake, D. O'Donnell, R.D. Page, J. Pakarinen, J. Partanen, P. Papadakis, P. Peura, P. Rahkila, P. Ruotsalainen, M. Sandzelius, J. Sarén, B. Saygı, M. Sedlák, C. Scholey, J. Sorri, S. Stolze, A. Thornthwaite, R. Urban, J. Uusitalo, M. Veselský, F.P. Wearing

^*Corresponding author for this work

School of Computing, Engineering and Physical Sciences

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

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Abstract

The extremely neutron-deficient isotopes ^177,179Au were studied by means of in-beam γ-ray spectroscopy. Specific tagging techniques, α-decay tagging in ¹⁷⁷Au and isomer tagging in ¹⁷⁹Au, were used for these studies. Feeding of positive-parity, nearly spherical states, which are associated with 2d_3/2 and 3s_1/2 proton-hole configurations, from the 1i_13/2 proton-intruder configuration was observed in ¹⁷⁷Au. Such a decay path has no precedent in odd-Au isotopes and it is explained by the effect of mixing of wave functions of the initial state.

Original language	English
Article number	135488
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	806
Early online date	14 May 2020
DOIs	https://doi.org/10.1016/j.physletb.2020.135488
Publication status	Published - 10 Jul 2020

Keywords

in-beam spectroscopy
γ rays
177Au
179Au
two-state mixing

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Cite this

Venhart, M., Balogh, M., Herzáň, A., Wood, J. L., Ali, F. A., Joss, D. T., Andreyev, A. N., Auranen, K., Carroll, R. J., Drummond, M. C., Easton, J. L., Greenlees, P. T., Grahn, T., Gredley, A., Henderson, J., Jakobsson, U., Julin, R., Juutinen, S., Konki, J., ... Wearing, F. P. (2020). Population of a low-spin positive-parity band from high-spin intruder states in ¹⁷⁷Au: the two-state mixing effect. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 806, Article 135488. https://doi.org/10.1016/j.physletb.2020.135488

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title = "Population of a low-spin positive-parity band from high-spin intruder states in 177Au: the two-state mixing effect",

abstract = "The extremely neutron-deficient isotopes 177,179Au were studied by means of in-beam γ-ray spectroscopy. Specific tagging techniques, α-decay tagging in 177Au and isomer tagging in 179Au, were used for these studies. Feeding of positive-parity, nearly spherical states, which are associated with 2d3/2 and 3s1/2 proton-hole configurations, from the 1i13/2 proton-intruder configuration was observed in 177Au. Such a decay path has no precedent in odd-Au isotopes and it is explained by the effect of mixing of wave functions of the initial state.",

keywords = "in-beam spectroscopy, γ rays, 177Au, 179Au, two-state mixing",

author = "M. Venhart and M. Balogh and A. Herz{\'a}{\v n} and J.L. Wood and F.A. Ali and D.T. Joss and A.N. Andreyev and K. Auranen and R.J. Carroll and M.C. Drummond and J.L. Easton and P.T. Greenlees and T. Grahn and A. Gredley and J. Henderson and U. Jakobsson and R. Julin and S. Juutinen and J. Konki and E.A. Lawrie and M. Leino and V. Matou{\v s}ek and C.G. McPeake and D. O'Donnell and R.D. Page and J. Pakarinen and J. Partanen and P. Papadakis and P. Peura and P. Rahkila and P. Ruotsalainen and M. Sandzelius and J. Sar{\'e}n and B. Saygı and M. Sedl{\'a}k and C. Scholey and J. Sorri and S. Stolze and A. Thornthwaite and R. Urban and J. Uusitalo and M. Veselsk{\'y} and F.P. Wearing",

year = "2020",

month = jul,

day = "10",

doi = "10.1016/j.physletb.2020.135488",

language = "English",

volume = "806",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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Venhart, M, Balogh, M, Herzáň, A, Wood, JL, Ali, FA, Joss, DT, Andreyev, AN, Auranen, K, Carroll, RJ, Drummond, MC, Easton, JL, Greenlees, PT, Grahn, T, Gredley, A, Henderson, J, Jakobsson, U, Julin, R, Juutinen, S, Konki, J, Lawrie, EA, Leino, M, Matoušek, V, McPeake, CG, O'Donnell, D, Page, RD, Pakarinen, J, Partanen, J, Papadakis, P, Peura, P, Rahkila, P, Ruotsalainen, P, Sandzelius, M, Sarén, J, Saygı, B, Sedlák, M, Scholey, C, Sorri, J, Stolze, S, Thornthwaite, A, Urban, R, Uusitalo, J, Veselský, M & Wearing, FP 2020, 'Population of a low-spin positive-parity band from high-spin intruder states in ¹⁷⁷Au: the two-state mixing effect', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 806, 135488. https://doi.org/10.1016/j.physletb.2020.135488

TY - JOUR

T1 - Population of a low-spin positive-parity band from high-spin intruder states in 177Au

T2 - the two-state mixing effect

AU - Venhart, M.

AU - Balogh, M.

AU - Herzáň, A.

AU - Wood, J.L.

AU - Ali, F.A.

AU - Joss, D.T.

AU - Andreyev, A.N.

AU - Auranen, K.

AU - Carroll, R.J.

AU - Drummond, M.C.

AU - Easton, J.L.

AU - Greenlees, P.T.

AU - Grahn, T.

AU - Gredley, A.

AU - Henderson, J.

AU - Jakobsson, U.

AU - Julin, R.

AU - Juutinen, S.

AU - Konki, J.

AU - Lawrie, E.A.

AU - Leino, M.

AU - Matoušek, V.

AU - McPeake, C.G.

AU - O'Donnell, D.

AU - Page, R.D.

AU - Pakarinen, J.

AU - Partanen, J.

AU - Papadakis, P.

AU - Peura, P.

AU - Rahkila, P.

AU - Ruotsalainen, P.

AU - Sandzelius, M.

AU - Sarén, J.

AU - Saygı, B.

AU - Sedlák, M.

AU - Scholey, C.

AU - Sorri, J.

AU - Stolze, S.

AU - Thornthwaite, A.

AU - Urban, R.

AU - Uusitalo, J.

AU - Veselský, M.

AU - Wearing, F.P.

PY - 2020/7/10

Y1 - 2020/7/10

N2 - The extremely neutron-deficient isotopes 177,179Au were studied by means of in-beam γ-ray spectroscopy. Specific tagging techniques, α-decay tagging in 177Au and isomer tagging in 179Au, were used for these studies. Feeding of positive-parity, nearly spherical states, which are associated with 2d3/2 and 3s1/2 proton-hole configurations, from the 1i13/2 proton-intruder configuration was observed in 177Au. Such a decay path has no precedent in odd-Au isotopes and it is explained by the effect of mixing of wave functions of the initial state.

AB - The extremely neutron-deficient isotopes 177,179Au were studied by means of in-beam γ-ray spectroscopy. Specific tagging techniques, α-decay tagging in 177Au and isomer tagging in 179Au, were used for these studies. Feeding of positive-parity, nearly spherical states, which are associated with 2d3/2 and 3s1/2 proton-hole configurations, from the 1i13/2 proton-intruder configuration was observed in 177Au. Such a decay path has no precedent in odd-Au isotopes and it is explained by the effect of mixing of wave functions of the initial state.

KW - in-beam spectroscopy

KW - γ rays

KW - 177Au

KW - 179Au

KW - two-state mixing

U2 - 10.1016/j.physletb.2020.135488

DO - 10.1016/j.physletb.2020.135488

M3 - Article

AN - SCOPUS:85085176572

SN - 0370-2693

VL - 806

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 135488

ER -