Experimental study of lifetimes of excited states in the Kπ= 0-octupole band and γ-vibrational band in 228Th

M.M.R. Chishti; D. O'Donnell; G. Battaglia; M. Bowry; D.A. Jaroszynski; B.S. Nara Singh; M. Scheck; P. Spagnoletti; J. F. Smith

doi:10.1088/1742-6596/1643/1/012122

Experimental study of lifetimes of excited states in the K^π= 0^-octupole band and γ-vibrational band in ²²⁸Th

M.M.R. Chishti^*, D. O'Donnell, G. Battaglia, M. Bowry, D.A. Jaroszynski, B.S. Nara Singh, M. Scheck, P. Spagnoletti, J. F. Smith

^*Corresponding author for this work

School of Computing, Engineering and Physical Sciences

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Abstract

Lifetimes of excited states in the Kπ = 0- octupole band and γ-vibrational of 228Th have been measured using the fast timing setup at the University of the West of Scotland (UWS). The setup consists of two cerium doped LaBr3 fast scintillators placed equidistant from the radioactive source 232Th. The states of interest have been analysed by doing the triple γ - γ - time coincidence analysis and using the fast-timing technique, mirror-symmetric centroid difference method. Octupole collectivity in 228Th nucleus is also investigated by calculating the enhanced electric dipole moments and transition rates in excited states followed by lifetime measurements in octupole band.

Original language	English
Article number	012122
Number of pages	6
Journal	Journal of Physics: Conference Series
Volume	1643
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1643/1/012122
Publication status	Published - 23 Dec 2020
Event	27th International Nuclear Physics Conference, INPC 2019 - Glasgow, United Kingdom Duration: 29 Jul 2019 → 2 Aug 2019

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10.1088/1742-6596/1643/1/012122Licence: CC BY

2020 12 23 Chishti et al Experimental finalFinal published version, 761 KBLicence: CC BY

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Chishti, M. M. R., O'Donnell, D., Battaglia, G., Bowry, M., Jaroszynski, D. A., Nara Singh, B. S., Scheck, M., Spagnoletti, P., & Smith, J. F. (2020). Experimental study of lifetimes of excited states in the K^π= 0^-octupole band and γ-vibrational band in ²²⁸Th. Journal of Physics: Conference Series, 1643(1), Article 012122. https://doi.org/10.1088/1742-6596/1643/1/012122

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title = "Experimental study of lifetimes of excited states in the Kπ= 0-octupole band and γ-vibrational band in 228Th",

abstract = "Lifetimes of excited states in the Kπ = 0- octupole band and γ-vibrational of 228Th have been measured using the fast timing setup at the University of the West of Scotland (UWS). The setup consists of two cerium doped LaBr3 fast scintillators placed equidistant from the radioactive source 232Th. The states of interest have been analysed by doing the triple γ - γ - time coincidence analysis and using the fast-timing technique, mirror-symmetric centroid difference method. Octupole collectivity in 228Th nucleus is also investigated by calculating the enhanced electric dipole moments and transition rates in excited states followed by lifetime measurements in octupole band.",

author = "M.M.R. Chishti and D. O'Donnell and G. Battaglia and M. Bowry and D.A. Jaroszynski and {Nara Singh}, B.S. and M. Scheck and P. Spagnoletti and Smith, {J. F.}",

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AU - O'Donnell, D.

AU - Battaglia, G.

AU - Bowry, M.

AU - Jaroszynski, D.A.

AU - Nara Singh, B.S.

AU - Scheck, M.

AU - Spagnoletti, P.

AU - Smith, J. F.

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AB - Lifetimes of excited states in the Kπ = 0- octupole band and γ-vibrational of 228Th have been measured using the fast timing setup at the University of the West of Scotland (UWS). The setup consists of two cerium doped LaBr3 fast scintillators placed equidistant from the radioactive source 232Th. The states of interest have been analysed by doing the triple γ - γ - time coincidence analysis and using the fast-timing technique, mirror-symmetric centroid difference method. Octupole collectivity in 228Th nucleus is also investigated by calculating the enhanced electric dipole moments and transition rates in excited states followed by lifetime measurements in octupole band.

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Experimental study of lifetimes of excited states in the K^π= 0^-octupole band and γ-vibrational band in ²²⁸Th

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