Low- Z boundary of the N=88 -90 shape phase transition: Ce 148 near the critical point

P. Koseoglou; V. Werner; N. Pietralla; S. Ilieva; T. Nikšić; D. Vretenar; P. Alexa; M. Thürauf; C. Bernards; A. Blanc; A. M. Bruce; R. B. Cakirli; N. Cooper; L. M. Fraile; G. De France; M. Jentschel; J. Jolie; U. Köster; W. Korten; T. Kröll; S. Lalkovski; H. Mach; N. Mǎrginean; P. Mutti; Z. Patel; V. Paziy; Zs Podolyák; P. H. Regan; J. M. Régis; O. J. Roberts; N. Saed-Samii; G. S. Simpson; T. Soldner; C. A. Ur; W. Urban; D. Wilmsen; E. Wilson

doi:10.1103/PhysRevC.101.014303

Low- Z boundary of the N=88 -90 shape phase transition: Ce 148 near the critical point

P. Koseoglou, V. Werner, N. Pietralla, S. Ilieva, T. Nikšić, D. Vretenar, P. Alexa, M. Thürauf, C. Bernards, A. Blanc, A. M. Bruce, R. B. Cakirli, N. Cooper, L. M. Fraile, G. De France, M. Jentschel, J. Jolie, U. Köster, W. Korten, T. KröllS. Lalkovski, H. Mach, N. Mǎrginean, P. Mutti, Z. Patel, V. Paziy, Zs Podolyák, P. H. Regan, J. M. Régis, O. J. Roberts, N. Saed-Samii, G. S. Simpson, T. Soldner, C. A. Ur, W. Urban, D. Wilmsen, E. Wilson

University of Brighton

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

Abstract

Excited states of the neutron-rich nucleus Ce148 have been populated by neutron-induced fission of a U235 target. Its electromagnetic decays were studied by means of γ-ray coincidence spectroscopy with fast-timing capabilities. Lifetimes of the 21+ and 41+ states of Ce148 were obtained and their E2 decay rates deduced. The B4/2=B(E2;41+→21+)/B(E2;21+→01+) ratio indicates that Ce148 is a transitional nucleus while the N=88/90 shape phase transition evolves into a gradual change of nuclear deformation for proton numbers Z<60.

Original language	English
Article number	014303
Journal	Physical Review C
Volume	101
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.101.014303
Publication status	Published - 6 Jan 2020

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10.1103/PhysRevC.101.014303

Low- Z boundary of the N = 88 –90 shape phase transition: 148 Ce near the critical pointAccepted author manuscript, 1.15 MB

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Koseoglou, P., Werner, V., Pietralla, N., Ilieva, S., Nikšić, T., Vretenar, D., Alexa, P., Thürauf, M., Bernards, C., Blanc, A., Bruce, A. M., Cakirli, R. B., Cooper, N., Fraile, L. M., De France, G., Jentschel, M., Jolie, J., Köster, U., Korten, W., ... Wilson, E. (2020). Low- Z boundary of the N=88 -90 shape phase transition: Ce 148 near the critical point. Physical Review C, 101(1), Article 014303. https://doi.org/10.1103/PhysRevC.101.014303

@article{bb1b48f6cd8349249d74fc09a7627473,

title = "Low- Z boundary of the N=88 -90 shape phase transition: Ce 148 near the critical point",

abstract = "Excited states of the neutron-rich nucleus Ce148 have been populated by neutron-induced fission of a U235 target. Its electromagnetic decays were studied by means of γ-ray coincidence spectroscopy with fast-timing capabilities. Lifetimes of the 21+ and 41+ states of Ce148 were obtained and their E2 decay rates deduced. The B4/2=B(E2;41+→21+)/B(E2;21+→01+) ratio indicates that Ce148 is a transitional nucleus while the N=88/90 shape phase transition evolves into a gradual change of nuclear deformation for proton numbers Z<60.",

author = "P. Koseoglou and V. Werner and N. Pietralla and S. Ilieva and T. Nik{\v s}i{\'c} and D. Vretenar and P. Alexa and M. Th{\"u}rauf and C. Bernards and A. Blanc and Bruce, {A. M.} and Cakirli, {R. B.} and N. Cooper and Fraile, {L. M.} and {De France}, G. and M. Jentschel and J. Jolie and U. K{\"o}ster and W. Korten and T. Kr{\"o}ll and S. Lalkovski and H. Mach and N. Mǎrginean and P. Mutti and Z. Patel and V. Paziy and Zs Podoly{\'a}k and Regan, {P. H.} and R{\'e}gis, {J. M.} and Roberts, {O. J.} and N. Saed-Samii and Simpson, {G. S.} and T. Soldner and Ur, {C. A.} and W. Urban and D. Wilmsen and E. Wilson",

year = "2020",

month = jan,

day = "6",

doi = "10.1103/PhysRevC.101.014303",

language = "English",

volume = "101",

journal = "Physical Review C",

issn = "2469-9985",

number = "1",

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Koseoglou, P, Werner, V, Pietralla, N, Ilieva, S, Nikšić, T, Vretenar, D, Alexa, P, Thürauf, M, Bernards, C, Blanc, A, Bruce, AM, Cakirli, RB, Cooper, N, Fraile, LM, De France, G, Jentschel, M, Jolie, J, Köster, U, Korten, W, Kröll, T, Lalkovski, S, Mach, H, Mǎrginean, N, Mutti, P, Patel, Z, Paziy, V, Podolyák, Z, Regan, PH, Régis, JM, Roberts, OJ, Saed-Samii, N, Simpson, GS, Soldner, T, Ur, CA, Urban, W, Wilmsen, D & Wilson, E 2020, 'Low- Z boundary of the N=88 -90 shape phase transition: Ce 148 near the critical point', Physical Review C, vol. 101, no. 1, 014303. https://doi.org/10.1103/PhysRevC.101.014303

TY - JOUR

T1 - Low- Z boundary of the N=88 -90 shape phase transition

T2 - Ce 148 near the critical point

AU - Koseoglou, P.

AU - Werner, V.

AU - Pietralla, N.

AU - Ilieva, S.

AU - Nikšić, T.

AU - Vretenar, D.

AU - Alexa, P.

AU - Thürauf, M.

AU - Bernards, C.

AU - Blanc, A.

AU - Bruce, A. M.

AU - Cakirli, R. B.

AU - Cooper, N.

AU - Fraile, L. M.

AU - De France, G.

AU - Jentschel, M.

AU - Jolie, J.

AU - Köster, U.

AU - Korten, W.

AU - Kröll, T.

AU - Lalkovski, S.

AU - Mach, H.

AU - Mǎrginean, N.

AU - Mutti, P.

AU - Patel, Z.

AU - Paziy, V.

AU - Podolyák, Zs

AU - Regan, P. H.

AU - Régis, J. M.

AU - Roberts, O. J.

AU - Saed-Samii, N.

AU - Simpson, G. S.

AU - Soldner, T.

AU - Ur, C. A.

AU - Urban, W.

AU - Wilmsen, D.

AU - Wilson, E.

PY - 2020/1/6

Y1 - 2020/1/6

N2 - Excited states of the neutron-rich nucleus Ce148 have been populated by neutron-induced fission of a U235 target. Its electromagnetic decays were studied by means of γ-ray coincidence spectroscopy with fast-timing capabilities. Lifetimes of the 21+ and 41+ states of Ce148 were obtained and their E2 decay rates deduced. The B4/2=B(E2;41+→21+)/B(E2;21+→01+) ratio indicates that Ce148 is a transitional nucleus while the N=88/90 shape phase transition evolves into a gradual change of nuclear deformation for proton numbers Z<60.

AB - Excited states of the neutron-rich nucleus Ce148 have been populated by neutron-induced fission of a U235 target. Its electromagnetic decays were studied by means of γ-ray coincidence spectroscopy with fast-timing capabilities. Lifetimes of the 21+ and 41+ states of Ce148 were obtained and their E2 decay rates deduced. The B4/2=B(E2;41+→21+)/B(E2;21+→01+) ratio indicates that Ce148 is a transitional nucleus while the N=88/90 shape phase transition evolves into a gradual change of nuclear deformation for proton numbers Z<60.

UR - http://www.scopus.com/inward/record.url?scp=85078109129&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.101.014303

DO - 10.1103/PhysRevC.101.014303

M3 - Article

AN - SCOPUS:85078109129

SN - 2469-9985

VL - 101

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 014303

ER -

Low- Z boundary of the N=88 -90 shape phase transition: Ce 148 near the critical point

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Alison Bruce

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Low- Z boundary of the N=88 -90 shape phase transition: Ce 148 near the critical point

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