Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg

K. Wrzosek-Lipska; K. Rezynkina; N. Bree; M. Zielińska; L. P. Gaffney; A. Petts; A. Andreyev; B. Bastin; M. Bender; A. Blazhev; B. Bruyneel; P. A. Butler; M. P. Carpenter; J. Cederkäll; E. Clément; T. E. Cocolios; A. N. Deacon; J. Diriken; A. Ekström; C. Fitzpatrick; L. M. Fraile; Ch Fransen; S. J. Freeman; J. E. García-Ramos; K. Geibel; R. Gernhäuser; T. Grahn; M. Guttormsen; B. Hadinia; K. Hadyńska-Klȩk; M. Hass; P. H. Heenen; R. D. Herzberg; H. Hess; K. Heyde; M. Huyse; O. Ivanov; D. G. Jenkins; R. Julin; N. Kesteloot; Th Kröll; R. Krücken; A. C. Larsen; R. Lutter; P. Marley; P. J. Napiorkowski; R. Orlandi; R. D. Page; J. Pakarinen; N. Patronis; P. J. Peura; E. Piselli; L. Próchniak; P. Rahkila; E. Rapisarda; P. Reiter; A. P. Robinson; M. Scheck; S. Siem; K. Singh Chakkal; J. F. Smith; J. Srebrny; I. Stefanescu; G. M. Tveten; P. Van Duppen; J. Van de Walle; D. Voulot; N. Warr; A. Wiens; J. L. Wood

doi:10.1140/epja/i2019-12815-2

Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of ¹⁸²Hg, ¹⁸⁴Hg, ¹⁸⁶Hg and ¹⁸⁸Hg

K. Wrzosek-Lipska, K. Rezynkina, N. Bree, M. Zielińska, L. P. Gaffney, A. Petts, A. Andreyev, B. Bastin, M. Bender, A. Blazhev, B. Bruyneel, P. A. Butler, M. P. Carpenter, J. Cederkäll, E. Clément, T. E. Cocolios, A. N. Deacon, J. Diriken, A. Ekström, C. FitzpatrickL. M. Fraile, Ch Fransen, S. J. Freeman, J. E. García-Ramos, K. Geibel, R. Gernhäuser, T. Grahn, M. Guttormsen, B. Hadinia, K. Hadyńska-Klȩk, M. Hass, P. H. Heenen, R. D. Herzberg, H. Hess, K. Heyde, M. Huyse, O. Ivanov, D. G. Jenkins, R. Julin, N. Kesteloot, Th Kröll, R. Krücken, A. C. Larsen, R. Lutter, P. Marley, P. J. Napiorkowski, R. Orlandi, R. D. Page, J. Pakarinen, N. Patronis, P. J. Peura, E. Piselli, L. Próchniak, P. Rahkila, E. Rapisarda, P. Reiter, A. P. Robinson, M. Scheck, S. Siem, K. Singh Chakkal, J. F. Smith, J. Srebrny, I. Stefanescu, G. M. Tveten, P. Van Duppen, J. Van de Walle, D. Voulot, N. Warr, A. Wiens, J. L. Wood

Research output › peer-review

13 Scopus citations

Abstract

The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass ^182-188 Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of 01,2+, 21,2+ and 41+ states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions.

Original language	English
Article number	130
Number of pages	23
Journal	The European Physical Journal A
Volume	55
Issue number	8
DOIs	https://doi.org/10.1140/epja/i2019-12815-2
State	Published - 1 Aug 2019

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Cite this

Wrzosek-Lipska, K., Rezynkina, K., Bree, N., Zielińska, M., Gaffney, L. P., Petts, A., Andreyev, A., Bastin, B., Bender, M., Blazhev, A., Bruyneel, B., Butler, P. A., Carpenter, M. P., Cederkäll, J., Clément, E., Cocolios, T. E., Deacon, A. N., Diriken, J., Ekström, A., ... Wood, J. L. (2019). Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of ¹⁸²Hg, ¹⁸⁴Hg, ¹⁸⁶Hg and ¹⁸⁸Hg. The European Physical Journal A, 55(8), Article 130. https://doi.org/10.1140/epja/i2019-12815-2

@article{b5ca55b2cd2d4ebd99b4a2692f82c507,

title = "Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg",

abstract = "The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass 182-188 Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of 01,2+, 21,2+ and 41+ states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions.",

keywords = "Electric-monopole transitions, Shape coexistence, Deformed bands, Nuclear, Configuration, Decay, Lifetimes, Isomerism, Intruder, Moments",

author = "K. Wrzosek-Lipska and K. Rezynkina and N. Bree and M. Zieli{\'n}ska and Gaffney, {L. P.} and A. Petts and A. Andreyev and B. Bastin and M. Bender and A. Blazhev and B. Bruyneel and Butler, {P. A.} and Carpenter, {M. P.} and J. Cederk{\"a}ll and E. Cl{\'e}ment and Cocolios, {T. E.} and Deacon, {A. N.} and J. Diriken and A. Ekstr{\"o}m and C. Fitzpatrick and Fraile, {L. M.} and Ch Fransen and Freeman, {S. J.} and Garc{\'i}a-Ramos, {J. E.} and K. Geibel and R. Gernh{\"a}user and T. Grahn and M. Guttormsen and B. Hadinia and K. Hady{\'n}ska-Klȩk and M. Hass and Heenen, {P. H.} and Herzberg, {R. D.} and H. Hess and K. Heyde and M. Huyse and O. Ivanov and Jenkins, {D. G.} and R. Julin and N. Kesteloot and Th Kr{\"o}ll and R. Kr{\"u}cken and Larsen, {A. C.} and R. Lutter and P. Marley and Napiorkowski, {P. J.} and R. Orlandi and Page, {R. D.} and J. Pakarinen and N. Patronis and Peura, {P. J.} and E. Piselli and L. Pr{\'o}chniak and P. Rahkila and E. Rapisarda and P. Reiter and Robinson, {A. P.} and M. Scheck and S. Siem and {Singh Chakkal}, K. and Smith, {J. F.} and J. Srebrny and I. Stefanescu and Tveten, {G. M.} and {Van Duppen}, P. and {Van de Walle}, J. and D. Voulot and N. Warr and A. Wiens and Wood, {J. L.}",

note = "Score=10 Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = aug,

day = "1",

doi = "10.1140/epja/i2019-12815-2",

language = "English",

volume = "55",

journal = "The European Physical Journal A",

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Wrzosek-Lipska, K, Rezynkina, K, Bree, N, Zielińska, M, Gaffney, LP, Petts, A, Andreyev, A, Bastin, B, Bender, M, Blazhev, A, Bruyneel, B, Butler, PA, Carpenter, MP, Cederkäll, J, Clément, E, Cocolios, TE, Deacon, AN, Diriken, J, Ekström, A, Fitzpatrick, C, Fraile, LM, Fransen, C, Freeman, SJ, García-Ramos, JE, Geibel, K, Gernhäuser, R, Grahn, T, Guttormsen, M, Hadinia, B, Hadyńska-Klȩk, K, Hass, M, Heenen, PH, Herzberg, RD, Hess, H, Heyde, K, Huyse, M, Ivanov, O, Jenkins, DG, Julin, R, Kesteloot, N, Kröll, T, Krücken, R, Larsen, AC, Lutter, R, Marley, P, Napiorkowski, PJ, Orlandi, R, Page, RD, Pakarinen, J, Patronis, N, Peura, PJ, Piselli, E, Próchniak, L, Rahkila, P, Rapisarda, E, Reiter, P, Robinson, AP, Scheck, M, Siem, S, Singh Chakkal, K, Smith, JF, Srebrny, J, Stefanescu, I, Tveten, GM, Van Duppen, P, Van de Walle, J, Voulot, D, Warr, N, Wiens, A & Wood, JL 2019, 'Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of ¹⁸²Hg, ¹⁸⁴Hg, ¹⁸⁶Hg and ¹⁸⁸Hg', The European Physical Journal A, vol. 55, no. 8, 130. https://doi.org/10.1140/epja/i2019-12815-2

TY - JOUR

T1 - Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes

T2 - Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg

AU - Wrzosek-Lipska, K.

AU - Rezynkina, K.

AU - Bree, N.

AU - Zielińska, M.

AU - Gaffney, L. P.

AU - Petts, A.

AU - Andreyev, A.

AU - Bastin, B.

AU - Bender, M.

AU - Blazhev, A.

AU - Bruyneel, B.

AU - Butler, P. A.

AU - Carpenter, M. P.

AU - Cederkäll, J.

AU - Clément, E.

AU - Cocolios, T. E.

AU - Deacon, A. N.

AU - Diriken, J.

AU - Ekström, A.

AU - Fitzpatrick, C.

AU - Fraile, L. M.

AU - Fransen, Ch

AU - Freeman, S. J.

AU - García-Ramos, J. E.

AU - Geibel, K.

AU - Gernhäuser, R.

AU - Grahn, T.

AU - Guttormsen, M.

AU - Hadinia, B.

AU - Hadyńska-Klȩk, K.

AU - Hass, M.

AU - Heenen, P. H.

AU - Herzberg, R. D.

AU - Hess, H.

AU - Heyde, K.

AU - Huyse, M.

AU - Ivanov, O.

AU - Jenkins, D. G.

AU - Julin, R.

AU - Kesteloot, N.

AU - Kröll, Th

AU - Krücken, R.

AU - Larsen, A. C.

AU - Lutter, R.

AU - Marley, P.

AU - Napiorkowski, P. J.

AU - Orlandi, R.

AU - Page, R. D.

AU - Pakarinen, J.

AU - Patronis, N.

AU - Peura, P. J.

AU - Piselli, E.

AU - Próchniak, L.

AU - Rahkila, P.

AU - Rapisarda, E.

AU - Reiter, P.

AU - Robinson, A. P.

AU - Scheck, M.

AU - Siem, S.

AU - Singh Chakkal, K.

AU - Smith, J. F.

AU - Srebrny, J.

AU - Stefanescu, I.

AU - Tveten, G. M.

AU - Van Duppen, P.

AU - Van de Walle, J.

AU - Voulot, D.

AU - Warr, N.

AU - Wiens, A.

AU - Wood, J. L.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass 182-188 Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of 01,2+, 21,2+ and 41+ states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions.

AB - The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass 182-188 Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of 01,2+, 21,2+ and 41+ states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions.

KW - Electric-monopole transitions

KW - Shape coexistence

KW - Deformed bands

KW - Nuclear

KW - Configuration

KW - Decay

KW - Lifetimes

KW - Isomerism

KW - Intruder

KW - Moments

UR - http://www.scopus.com/inward/record.url?scp=85071016875&partnerID=8YFLogxK

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/34996127

U2 - 10.1140/epja/i2019-12815-2

DO - 10.1140/epja/i2019-12815-2

M3 - Article

SN - 1434-6001

VL - 55

JO - The European Physical Journal A

JF - The European Physical Journal A

IS - 8

M1 - 130

ER -