Interplay between K-isomerism and γ-softness in 128Xe

J. N. Orce; A. M. Bruce; A. Emmanouilidis; C. Wheldon; F. R. Xu; P. M. Walker; M. Caamaño; Zs Podolyák; H. El-Masri; P. D. Stevenson; A. P. Byrne; G. D. Dracoulis; J. C. Hazel; T. Kibédi; D. M. Cullen

Interplay between K-isomerism and γ-softness in ¹²⁸Xe

J. N. Orce^*, A. M. Bruce, A. Emmanouilidis, C. Wheldon, F. R. Xu, P. M. Walker, M. Caamaño, Zs Podolyák, H. El-Masri, P. D. Stevenson, A. P. Byrne, G. D. Dracoulis, J. C. Hazel, T. Kibédi, D. M. Cullen

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

Abstract

A partial decay scheme for ¹²⁸Xe is presented. The K^π = 8^- state is isomeric with a half-life of 73(5) ns. Theoretical calculations have been performed using the configuration constrained blocking method based on a non-axial Woods-Saxon potential. Large γ-deformation and γ-softness have been predicted for the ground state. The strong shape-driving effect of the K^π = 8^- state results in a much smaller value of γ for this configuration. This may partly explain the isomerism, despite the γ-softness. Measured hindrance factors are discussed in the context of the γ-softness of this nucleus.

Original language	English
Pages (from-to)	2253-2256
Number of pages	4
Journal	Acta Physica Polonica B
Volume	34
Issue number	4
Publication status	Published - Apr 2003
Event	XXXVII Zakopane School Of Physics; Trends In Nuclear Physics - Zakopane, Poland Duration: 3 Sept 2002 → 10 Sept 2002

Cite this

@article{482a0bbd491b46d8b478b3659bd0b238,

title = "Interplay between K-isomerism and γ-softness in 128Xe",

abstract = "A partial decay scheme for 128Xe is presented. The Kπ = 8- state is isomeric with a half-life of 73(5) ns. Theoretical calculations have been performed using the configuration constrained blocking method based on a non-axial Woods-Saxon potential. Large γ-deformation and γ-softness have been predicted for the ground state. The strong shape-driving effect of the Kπ = 8- state results in a much smaller value of γ for this configuration. This may partly explain the isomerism, despite the γ-softness. Measured hindrance factors are discussed in the context of the γ-softness of this nucleus.",

author = "Orce, {J. N.} and Bruce, {A. M.} and A. Emmanouilidis and C. Wheldon and Xu, {F. R.} and Walker, {P. M.} and M. Caama{\~n}o and Zs Podoly{\'a}k and H. El-Masri and Stevenson, {P. D.} and Byrne, {A. P.} and Dracoulis, {G. D.} and Hazel, {J. C.} and T. Kib{\'e}di and Cullen, {D. M.}",

year = "2003",

month = apr,

language = "English",

volume = "34",

pages = "2253--2256",

journal = "Acta Physica Polonica B",

issn = "0587-4254",

publisher = "Jagellonian University",

number = "4",

note = "XXXVII Zakopane School Of Physics; Trends In Nuclear Physics ; Conference date: 03-09-2002 Through 10-09-2002",

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TY - JOUR

T1 - Interplay between K-isomerism and γ-softness in 128Xe

AU - Orce, J. N.

AU - Bruce, A. M.

AU - Emmanouilidis, A.

AU - Wheldon, C.

AU - Xu, F. R.

AU - Walker, P. M.

AU - Caamaño, M.

AU - Podolyák, Zs

AU - El-Masri, H.

AU - Stevenson, P. D.

AU - Byrne, A. P.

AU - Dracoulis, G. D.

AU - Hazel, J. C.

AU - Kibédi, T.

AU - Cullen, D. M.

PY - 2003/4

Y1 - 2003/4

N2 - A partial decay scheme for 128Xe is presented. The Kπ = 8- state is isomeric with a half-life of 73(5) ns. Theoretical calculations have been performed using the configuration constrained blocking method based on a non-axial Woods-Saxon potential. Large γ-deformation and γ-softness have been predicted for the ground state. The strong shape-driving effect of the Kπ = 8- state results in a much smaller value of γ for this configuration. This may partly explain the isomerism, despite the γ-softness. Measured hindrance factors are discussed in the context of the γ-softness of this nucleus.

AB - A partial decay scheme for 128Xe is presented. The Kπ = 8- state is isomeric with a half-life of 73(5) ns. Theoretical calculations have been performed using the configuration constrained blocking method based on a non-axial Woods-Saxon potential. Large γ-deformation and γ-softness have been predicted for the ground state. The strong shape-driving effect of the Kπ = 8- state results in a much smaller value of γ for this configuration. This may partly explain the isomerism, despite the γ-softness. Measured hindrance factors are discussed in the context of the γ-softness of this nucleus.

UR - http://www.scopus.com/inward/record.url?scp=0038394285&partnerID=8YFLogxK

M3 - Conference article

SN - 0587-4254

VL - 34

SP - 2253

EP - 2256

JO - Acta Physica Polonica B

JF - Acta Physica Polonica B

IS - 4

T2 - XXXVII Zakopane School Of Physics; Trends In Nuclear Physics

Y2 - 3 September 2002 through 10 September 2002

ER -

Interplay between K-isomerism and γ-softness in ¹²⁸Xe

Abstract

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