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. 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

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",

publisher = "American Physical Society (APS)",

number = "1",

}

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 - https://www.scopus.com/pages/publications/85078109129

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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