Improved measurement of the 02+→01+ E0 transition strength for Se 72 using the SPICE spectrometer

J. Smallcombe; A. B. Garnsworthy; W. Korten; P. Singh; F. A. Ali; C. Andreoiu; S. Ansari; G. C. Ball; C. J. Barton; S. S. Bhattacharjee; M. Bowry; R. Caballero-Folch; A. Chester; S. A. Gillespie; G. F. Grinyer; G. Hackman; C. Jones; B. Melon; M. Moukaddam; A. Nannini; P. Ruotsalainen; K. Starosta; C. E. Svensson; R. Wadsworth; J. Williams

doi:10.1103/PhysRevC.106.014312

Improved measurement of the 02+→01+ E0 transition strength for Se 72 using the SPICE spectrometer

J. Smallcombe^*, A. B. Garnsworthy, W. Korten, P. Singh, F. A. Ali, C. Andreoiu, S. Ansari, G. C. Ball, C. J. Barton, S. S. Bhattacharjee, M. Bowry, R. Caballero-Folch, A. Chester, S. A. Gillespie, G. F. Grinyer, G. Hackman, C. Jones, B. Melon, M. Moukaddam, A. NanniniP. Ruotsalainen, K. Starosta, C. E. Svensson, R. Wadsworth, J. Williams

^*Corresponding author for this work

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

Abstract

The selenium isotopes lie at the heart of a tumultuous region of the nuclear chart where shape coexistence effects grapple with neutron-proton pairing correlations, triaxiality, and the impending proton drip line. In this work, a study of Se72 by internal conversion electron and γ-ray spectroscopy was undertaken with the SPICE and TIGRESS arrays. New measurements of the branching ratio and lifetime of the 02+ state were performed, yielding a determination of ρ2(E0;02+→01+)=29(3) milliunits. Two-state mixing calculations were performed that highlighted the importance of interpretation of such E0 strength values in the context of shape coexistence.

Original language	English
Article number	014312
Number of pages	9
Journal	Physical Review C
Volume	106
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.106.014312
Publication status	Published - 19 Jul 2022

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10.1103/PhysRevC.106.014312

Improved measurement of the 02 + → 01 + E0 transition strength for 72Se using the SPICE spectrometer
© 2022 American Physical Society. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details
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Smallcombe, J., Garnsworthy, A. B., Korten, W., Singh, P., Ali, F. A., Andreoiu, C., Ansari, S., Ball, G. C., Barton, C. J., Bhattacharjee, S. S., Bowry, M., Caballero-Folch, R., Chester, A., Gillespie, S. A., Grinyer, G. F., Hackman, G., Jones, C., Melon, B., Moukaddam, M., ... Williams, J. (2022). Improved measurement of the 02+→01+ E0 transition strength for Se 72 using the SPICE spectrometer. Physical Review C, 106(1), Article 014312. https://doi.org/10.1103/PhysRevC.106.014312

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title = "Improved measurement of the 02+→01+ E0 transition strength for Se 72 using the SPICE spectrometer",

abstract = "The selenium isotopes lie at the heart of a tumultuous region of the nuclear chart where shape coexistence effects grapple with neutron-proton pairing correlations, triaxiality, and the impending proton drip line. In this work, a study of Se72 by internal conversion electron and γ-ray spectroscopy was undertaken with the SPICE and TIGRESS arrays. New measurements of the branching ratio and lifetime of the 02+ state were performed, yielding a determination of ρ2(E0;02+→01+)=29(3) milliunits. Two-state mixing calculations were performed that highlighted the importance of interpretation of such E0 strength values in the context of shape coexistence. ",

author = "J. Smallcombe and Garnsworthy, {A. B.} and W. Korten and P. Singh and Ali, {F. A.} and C. Andreoiu and S. Ansari and Ball, {G. C.} and Barton, {C. J.} and Bhattacharjee, {S. S.} and M. Bowry and R. Caballero-Folch and A. Chester and Gillespie, {S. A.} and Grinyer, {G. F.} and G. Hackman and C. Jones and B. Melon and M. Moukaddam and A. Nannini and P. Ruotsalainen and K. Starosta and Svensson, {C. E.} and R. Wadsworth and J. Williams",

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Smallcombe, J, Garnsworthy, AB, Korten, W, Singh, P, Ali, FA, Andreoiu, C, Ansari, S, Ball, GC, Barton, CJ, Bhattacharjee, SS, Bowry, M, Caballero-Folch, R, Chester, A, Gillespie, SA, Grinyer, GF, Hackman, G, Jones, C, Melon, B, Moukaddam, M, Nannini, A, Ruotsalainen, P, Starosta, K, Svensson, CE, Wadsworth, R & Williams, J 2022, 'Improved measurement of the 02+→01+ E0 transition strength for Se 72 using the SPICE spectrometer', Physical Review C, vol. 106, no. 1, 014312. https://doi.org/10.1103/PhysRevC.106.014312

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AU - Smallcombe, J.

AU - Garnsworthy, A. B.

AU - Korten, W.

AU - Singh, P.

AU - Ali, F. A.

AU - Andreoiu, C.

AU - Ansari, S.

AU - Ball, G. C.

AU - Barton, C. J.

AU - Bhattacharjee, S. S.

AU - Bowry, M.

AU - Caballero-Folch, R.

AU - Chester, A.

AU - Gillespie, S. A.

AU - Grinyer, G. F.

AU - Hackman, G.

AU - Jones, C.

AU - Melon, B.

AU - Moukaddam, M.

AU - Nannini, A.

AU - Ruotsalainen, P.

AU - Starosta, K.

AU - Svensson, C. E.

AU - Wadsworth, R.

AU - Williams, J.

PY - 2022/7/19

Y1 - 2022/7/19

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AB - The selenium isotopes lie at the heart of a tumultuous region of the nuclear chart where shape coexistence effects grapple with neutron-proton pairing correlations, triaxiality, and the impending proton drip line. In this work, a study of Se72 by internal conversion electron and γ-ray spectroscopy was undertaken with the SPICE and TIGRESS arrays. New measurements of the branching ratio and lifetime of the 02+ state were performed, yielding a determination of ρ2(E0;02+→01+)=29(3) milliunits. Two-state mixing calculations were performed that highlighted the importance of interpretation of such E0 strength values in the context of shape coexistence.

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JO - Physical Review C

JF - Physical Review C

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ER -

Improved measurement of the 02+→01+ E0 transition strength for Se 72 using the SPICE spectrometer

Abstract

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Nuclear Physics Consolidated Grant 2021-2024

Nuclear Physics Consolidated Grant

Nuclear Physics Consolidated Grant

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Improved measurement of the 02+→01+ E0 transition strength for Se 72 using the SPICE spectrometer

Abstract

Bibliographical note

Access to Document

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Projects

Nuclear Physics Consolidated Grant 2021-2024

Nuclear Physics Consolidated Grant

Nuclear Physics Consolidated Grant

Cite this