E3 and M2 transition strengths in 83209Bi

O. J. Roberts; C.R. Niţă; A. M. Bruce; N. Mărginean; D. Bucurescu; D. Deleanu; D. Filipescu; N. M. Florea; I. Gheorghe; D. Ghiţă; T. Glodariu; R. Lica; R. Mărginean; C. Mihai; A. Negret; T. Sava; L. Stroe; R. Şuvăilă; S. Toma; T. Alharbi; T. Alexander; S. Aydin; B. A. Brown; F. Browne; R. J. Carroll; K. Mulholland; Zs. Podolyák; P. H. Regan; J. F. Smith; M. Smolen; C. M. Townsley

doi:10.1103/PhysRevC.93.014309

E3 and M2 transition strengths in ₈₃²⁰⁹Bi

O. J. Roberts
, C.R. Niţă
, A. M. Bruce
, N. Mărginean
, D. Bucurescu
, D. Deleanu
, D. Filipescu
, N. M. Florea
, I. Gheorghe
, D. Ghiţă
, T. Glodariu
, R. Lica
, R. Mărginean
, C. Mihai
, A. Negret
, T. Sava
, L. Stroe
, R. Şuvăilă
, S. Toma
, T. Alharbi

T. Alexander, S. Aydin, B. A. Brown, F. Browne, R. J. Carroll, K. Mulholland, Zs. Podolyák, P. H. Regan, J. F. Smith, M. Smolen, C. M. Townsley

School of Computing, Engineering and Physical Sciences

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

8 Citations (Scopus)

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Abstract

The 1i_13/2 -> 1h_9/2 (M2) and 3s_1/2 -> 2f_7/2 (E3) reduced proton transition probabilities in ₈₃²⁰⁹Bi have been determined from the direct half-life measurements of the 13/2₁⁺ and 1/2₁⁺ states using the Romanian array for gamma-ray SPectroscopy in HEavy ion REactions (RoSPHERE). The 13/2₁⁺ and 1/2₁⁺ states were found to have T_1/2 = 0.120(15) ns and T_1/2 = 9.02(24) ns respectively. Angular distribution measurements were used to determine an E3/M2 mixing ratio of δ = -0.184(13) for the 1609 keV gamma-ray transition deexciting the 13/2₁⁺ state. This value for δ was combined with the measured half-life to give reduced transition probabilities of B(E3, 13/2₁⁺ -> 9/2₁^-) = 12(2) x 10³ e² fm⁶ and B(M2, 13/2₁⁺ -> 9/2₁^-) = 38(5)μ²_N fm². These values are in good agreement with calculations within the finite Fermi system. The extracted value of B(E3, 1/2₁⁺) -> 7/2₁^-) = 6.3(2) x 10³ e² fm⁶ can be explained by a small (similar to 6%) admixture in the wave function of the 1/2₁⁺ state.

Original language	English
Article number	014309
Journal	Physical Review C
Volume	93
DOIs	https://doi.org/10.1103/PhysRevC.93.014309
Publication status	Published - 14 Jan 2016

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Roberts, O. J., Niţă, C. R., Bruce, A. M., Mărginean, N., Bucurescu, D., Deleanu, D., Filipescu, D., Florea, N. M., Gheorghe, I., Ghiţă, D., Glodariu, T., Lica, R., Mărginean, R., Mihai, C., Negret, A., Sava, T., Stroe, L., Şuvăilă, R., Toma, S., ... Townsley, C. M. (2016). E3 and M2 transition strengths in ₈₃²⁰⁹Bi. Physical Review C, 93, Article 014309. https://doi.org/10.1103/PhysRevC.93.014309

@article{7ef055f186e14b50a7431efde20349d1,

title = "E3 and M2 transition strengths in 83209Bi",

abstract = "The 1i13/2 -> 1h9/2 (M2) and 3s1/2 -> 2f7/2 (E3) reduced proton transition probabilities in 83209Bi have been determined from the direct half-life measurements of the 13/21+ and 1/21+ states using the Romanian array for gamma-ray SPectroscopy in HEavy ion REactions (RoSPHERE). The 13/21+ and 1/21+ states were found to have T1/2 = 0.120(15) ns and T1/2 = 9.02(24) ns respectively. Angular distribution measurements were used to determine an E3/M2 mixing ratio of δ = -0.184(13) for the 1609 keV gamma-ray transition deexciting the 13/21+ state. This value for δ was combined with the measured half-life to give reduced transition probabilities of B(E3, 13/21+ -> 9/21-) = 12(2) x 103 e2 fm6 and B(M2, 13/21+ -> 9/21-) = 38(5)μ2N fm2. These values are in good agreement with calculations within the finite Fermi system. The extracted value of B(E3, 1/21+) -> 7/21-) = 6.3(2) x 103 e2 fm6 can be explained by a small (similar to 6\%) admixture in the wave function of the 1/21+ state.",

author = "Roberts, \{O. J.\} and C.R. Ni{\c t}{\u a} and Bruce, \{A. M.\} and N. M{\u a}rginean and D. Bucurescu and D. Deleanu and D. Filipescu and Florea, \{N. M.\} and I. Gheorghe and D. Ghi{\c t}{\u a} and T. Glodariu and R. Lica and R. M{\u a}rginean and C. Mihai and A. Negret and T. Sava and L. Stroe and R. {\c S}uv{\u a}il{\u a} and S. Toma and T. Alharbi and T. Alexander and S. Aydin and Brown, \{B. A.\} and F. Browne and Carroll, \{R. J.\} and K. Mulholland and Zs. Podoly{\'a}k and Regan, \{P. H.\} and Smith, \{J. F.\} and M. Smolen and Townsley, \{C. M.\}",

year = "2016",

month = jan,

day = "14",

doi = "10.1103/PhysRevC.93.014309",

language = "English",

volume = "93",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

}

Roberts, OJ, Niţă, CR, Bruce, AM, Mărginean, N, Bucurescu, D, Deleanu, D, Filipescu, D, Florea, NM, Gheorghe, I, Ghiţă, D, Glodariu, T, Lica, R, Mărginean, R, Mihai, C, Negret, A, Sava, T, Stroe, L, Şuvăilă, R, Toma, S, Alharbi, T, Alexander, T, Aydin, S, Brown, BA, Browne, F, Carroll, RJ, Mulholland, K, Podolyák, Z, Regan, PH, Smith, JF, Smolen, M & Townsley, CM 2016, 'E3 and M2 transition strengths in ₈₃²⁰⁹Bi', Physical Review C, vol. 93, 014309. https://doi.org/10.1103/PhysRevC.93.014309

TY - JOUR

T1 - E3 and M2 transition strengths in 83209Bi

AU - Roberts, O. J.

AU - Niţă, C.R.

AU - Bruce, A. M.

AU - Mărginean, N.

AU - Bucurescu, D.

AU - Deleanu, D.

AU - Filipescu, D.

AU - Florea, N. M.

AU - Gheorghe, I.

AU - Ghiţă, D.

AU - Glodariu, T.

AU - Lica, R.

AU - Mărginean, R.

AU - Mihai, C.

AU - Negret, A.

AU - Sava, T.

AU - Stroe, L.

AU - Şuvăilă, R.

AU - Toma, S.

AU - Alharbi, T.

AU - Alexander, T.

AU - Aydin, S.

AU - Brown, B. A.

AU - Browne, F.

AU - Carroll, R. J.

AU - Mulholland, K.

AU - Podolyák, Zs.

AU - Regan, P. H.

AU - Smith, J. F.

AU - Smolen, M.

AU - Townsley, C. M.

PY - 2016/1/14

Y1 - 2016/1/14

N2 - The 1i13/2 -> 1h9/2 (M2) and 3s1/2 -> 2f7/2 (E3) reduced proton transition probabilities in 83209Bi have been determined from the direct half-life measurements of the 13/21+ and 1/21+ states using the Romanian array for gamma-ray SPectroscopy in HEavy ion REactions (RoSPHERE). The 13/21+ and 1/21+ states were found to have T1/2 = 0.120(15) ns and T1/2 = 9.02(24) ns respectively. Angular distribution measurements were used to determine an E3/M2 mixing ratio of δ = -0.184(13) for the 1609 keV gamma-ray transition deexciting the 13/21+ state. This value for δ was combined with the measured half-life to give reduced transition probabilities of B(E3, 13/21+ -> 9/21-) = 12(2) x 103 e2 fm6 and B(M2, 13/21+ -> 9/21-) = 38(5)μ2N fm2. These values are in good agreement with calculations within the finite Fermi system. The extracted value of B(E3, 1/21+) -> 7/21-) = 6.3(2) x 103 e2 fm6 can be explained by a small (similar to 6%) admixture in the wave function of the 1/21+ state.

AB - The 1i13/2 -> 1h9/2 (M2) and 3s1/2 -> 2f7/2 (E3) reduced proton transition probabilities in 83209Bi have been determined from the direct half-life measurements of the 13/21+ and 1/21+ states using the Romanian array for gamma-ray SPectroscopy in HEavy ion REactions (RoSPHERE). The 13/21+ and 1/21+ states were found to have T1/2 = 0.120(15) ns and T1/2 = 9.02(24) ns respectively. Angular distribution measurements were used to determine an E3/M2 mixing ratio of δ = -0.184(13) for the 1609 keV gamma-ray transition deexciting the 13/21+ state. This value for δ was combined with the measured half-life to give reduced transition probabilities of B(E3, 13/21+ -> 9/21-) = 12(2) x 103 e2 fm6 and B(M2, 13/21+ -> 9/21-) = 38(5)μ2N fm2. These values are in good agreement with calculations within the finite Fermi system. The extracted value of B(E3, 1/21+) -> 7/21-) = 6.3(2) x 103 e2 fm6 can be explained by a small (similar to 6%) admixture in the wave function of the 1/21+ state.

U2 - 10.1103/PhysRevC.93.014309

DO - 10.1103/PhysRevC.93.014309

M3 - Article

SN - 2469-9985

VL - 93

JO - Physical Review C

JF - Physical Review C

M1 - 014309

ER -

E3 and M2 transition strengths in 83209Bi

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E3 and M2 transition strengths in ₈₃²⁰⁹Bi