Shape Coexistence in the Neutron-Deficient Even-Even 182−188Hg Isotopes Studied via Coulomb Excitation

Nele Kesteloot; Nick Bree; Kasia Wrzosek-Lipska; Andrew Petts; Andrei Andreyev; Beyhan Bastin; Michael Bender; A Blazhev; Bart Bruyneel; Peter A Butler; J Butterworth; MP Carpenter; Joachim Cederkäll; Emanuel Clément; Thomas Elias Cocolios; A Deacon; Jan Diriken; A Ekström; C Fitzpatrick; LM Fraile; CH Fransen; SJ Freeman; Liam Paul Gaffney; JE Garcia-Ramos; K Geibel; R Gernhäuser; Tuomas Grahn; M Guttormsen; B Hadinia; K Hadynska-Klek; M Hass; Paul-Henri Heenen; R-D Herzberg; H Hess; Kris Heyde; Mark Huyse; Oleg Ivanov; DG Jenkins; R Julin; Thorsten Kröll; R Krücken; AC Larsen; R Lutter; P Marley; PJ Napiorkowski; Riccardo Orlandi; RD Page; Janne Pakarinen; Nikolas Patronis; PJ Peura; E Piselli; P Rahkila; Elisa Rapisarda; Peter Reiter; AP Robinson; Marcus Scheck; S Siem; K Singh Chakkal; JF Smith; J Srebrny; Irina Stefanescu; GM Tveten; Piet Van Duppen; Jarno Van de Walle; Didier Voulot; Nigel Warr; F Wenander; A Wiens; John L Wood; Magda Zielinska; Lucia Popescu

doi:10.1103/PhysRevLett.112.162701

Shape Coexistence in the Neutron-Deficient Even-Even 182−188Hg Isotopes Studied via Coulomb Excitation

Nele Kesteloot, Nick Bree, Kasia Wrzosek-Lipska, Andrew Petts, Andrei Andreyev, Beyhan Bastin, Michael Bender, A Blazhev, Bart Bruyneel, Peter A Butler, J Butterworth, MP Carpenter, Joachim Cederkäll, Emanuel Clément, Thomas Elias Cocolios, A Deacon, Jan Diriken, A Ekström, C Fitzpatrick, LM FraileCH Fransen, SJ Freeman, Liam Paul Gaffney, JE Garcia-Ramos, K Geibel, R Gernhäuser, Tuomas Grahn, M Guttormsen, B Hadinia, K Hadynska-Klek, M Hass, Paul-Henri Heenen, R-D Herzberg, H Hess, Kris Heyde, Mark Huyse, Oleg Ivanov, DG Jenkins, R Julin, Thorsten Kröll, R Krücken, AC Larsen, R Lutter, P Marley, PJ Napiorkowski, Riccardo Orlandi, RD Page, Janne Pakarinen, Nikolas Patronis, PJ Peura, E Piselli, P Rahkila, Elisa Rapisarda, Peter Reiter, AP Robinson, Marcus Scheck, S Siem, K Singh Chakkal, JF Smith, J Srebrny, Irina Stefanescu, GM Tveten, Piet Van Duppen, Jarno Van de Walle, Didier Voulot, Nigel Warr, F Wenander, A Wiens, John L Wood, Magda Zielinska, Lucia Popescu

Research output › peer-review

Abstract

Coulomb-excitation experiments to study electromagnetic properties of radioactive even-even Hg isotopes were performed with 2.85 MeV=nucleon mercury beams from REX-ISOLDE. Magnitudes and relative signs of the reduced E2 matrix elements that couple the ground state and low-lying excited states in 182−188Hg were extracted. Information on the deformation of the ground and the first excited 0+ states was deduced using the quadrupole sum rules approach. Results show that the ground state is slightly deformed and of oblate nature, while a larger deformation for the excited 0þ state was noted in 182;184Hg. The results are compared to beyond mean field and interacting-boson based models and interpreted within a two-state mixing model. Partial agreement with the model calculations was obtained. The presence of two different structures in the light even-mass mercury isotopes that coexist at low excitation energy is firmly established.

Original language	English
Pages (from-to)	1-5
Journal	Physical review Letters
Volume	112
Issue number	162701
DOIs	https://doi.org/10.1103/PhysRevLett.112.162701
State	Published - 25 Apr 2014

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Kesteloot, N., Bree, N., Wrzosek-Lipska, K., Petts, A., Andreyev, A., Bastin, B., Bender, M., Blazhev, A., Bruyneel, B., Butler, P. A., Butterworth, J., Carpenter, MP., Cederkäll, J., Clément, E., Cocolios, T. E., Deacon, A., Diriken, J., Ekström, A., Fitzpatrick, C., ... Popescu, L. (2014). Shape Coexistence in the Neutron-Deficient Even-Even 182−188Hg Isotopes Studied via Coulomb Excitation. Physical review Letters, 112(162701), 1-5. https://doi.org/10.1103/PhysRevLett.112.162701

@article{40bdac1061f7476c977abaafb6565d2d,

title = "Shape Coexistence in the Neutron-Deficient Even-Even 182−188Hg Isotopes Studied via Coulomb Excitation",

abstract = "Coulomb-excitation experiments to study electromagnetic properties of radioactive even-even Hg isotopes were performed with 2.85 MeV=nucleon mercury beams from REX-ISOLDE. Magnitudes and relative signs of the reduced E2 matrix elements that couple the ground state and low-lying excited states in 182−188Hg were extracted. Information on the deformation of the ground and the first excited 0+ states was deduced using the quadrupole sum rules approach. Results show that the ground state is slightly deformed and of oblate nature, while a larger deformation for the excited 0{\th} state was noted in 182;184Hg. The results are compared to beyond mean field and interacting-boson based models and interpreted within a two-state mixing model. Partial agreement with the model calculations was obtained. The presence of two different structures in the light even-mass mercury isotopes that coexist at low excitation energy is firmly established.",

keywords = "Coulomb excitation, Hg, REX-ISOLDE, CERN, Miniball, shape coexistence",

author = "Nele Kesteloot and Nick Bree and Kasia Wrzosek-Lipska and Andrew Petts and Andrei Andreyev and Beyhan Bastin and Michael Bender and A Blazhev and Bart Bruyneel and Butler, {Peter A} and J Butterworth and MP Carpenter and Joachim Cederk{\"a}ll and Emanuel Cl{\'e}ment and Cocolios, {Thomas Elias} and A Deacon and Jan Diriken and A Ekstr{\"o}m and C Fitzpatrick and LM Fraile and CH Fransen and SJ Freeman and Gaffney, {Liam Paul} and JE Garcia-Ramos and K Geibel and R Gernh{\"a}user and Tuomas Grahn and M Guttormsen and B Hadinia and K Hadynska-Klek and M Hass and Paul-Henri Heenen and R-D Herzberg and H Hess and Kris Heyde and Mark Huyse and Oleg Ivanov and DG Jenkins and R Julin and Thorsten Kr{\"o}ll and R Kr{\"u}cken and AC Larsen and R Lutter and P Marley and PJ Napiorkowski and Riccardo Orlandi and RD Page and Janne Pakarinen and Nikolas Patronis and PJ Peura and E Piselli and P Rahkila and Elisa Rapisarda and Peter Reiter and AP Robinson and Marcus Scheck and S Siem and {Singh Chakkal}, K and JF Smith and J Srebrny and Irina Stefanescu and GM Tveten and {Van Duppen}, Piet and {Van de Walle}, Jarno and Didier Voulot and Nigel Warr and F Wenander and A Wiens and Wood, {John L} and Magda Zielinska and Lucia Popescu",

note = "Score = 10",

year = "2014",

month = apr,

day = "25",

doi = "10.1103/PhysRevLett.112.162701",

language = "English",

volume = "112",

pages = "1--5",

journal = "Physical review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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Kesteloot, N, Bree, N, Wrzosek-Lipska, K, Petts, A, Andreyev, A, Bastin, B, Bender, M, Blazhev, A, Bruyneel, B, Butler, PA, Butterworth, J, Carpenter, MP, Cederkäll, J, Clément, E, Cocolios, TE, Deacon, A, Diriken, J, Ekström, A, Fitzpatrick, C, Fraile, LM, Fransen, CH, Freeman, SJ, Gaffney, LP, Garcia-Ramos, JE, Geibel, K, Gernhäuser, R, Grahn, T, Guttormsen, M, Hadinia, B, Hadynska-Klek, K, Hass, M, Heenen, P-H, Herzberg, R-D, Hess, H, Heyde, K, Huyse, M, Ivanov, O, Jenkins, DG, Julin, R, Kröll, T, Krücken, R, Larsen, AC, Lutter, R, Marley, P, Napiorkowski, PJ, Orlandi, R, Page, RD, Pakarinen, J, Patronis, N, Peura, PJ, Piselli, E, 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, Wenander, F, Wiens, A, Wood, JL, Zielinska, M & Popescu, L 2014, 'Shape Coexistence in the Neutron-Deficient Even-Even 182−188Hg Isotopes Studied via Coulomb Excitation', Physical review Letters, vol. 112, no. 162701, pp. 1-5. https://doi.org/10.1103/PhysRevLett.112.162701

TY - JOUR

T1 - Shape Coexistence in the Neutron-Deficient Even-Even 182−188Hg Isotopes Studied via Coulomb Excitation

AU - Kesteloot, Nele

AU - Bree, Nick

AU - Wrzosek-Lipska, Kasia

AU - Petts, Andrew

AU - Andreyev, Andrei

AU - Bastin, Beyhan

AU - Bender, Michael

AU - Blazhev, A

AU - Bruyneel, Bart

AU - Butler, Peter A

AU - Butterworth, J

AU - Carpenter, MP

AU - Cederkäll, Joachim

AU - Clément, Emanuel

AU - Cocolios, Thomas Elias

AU - Deacon, A

AU - Diriken, Jan

AU - Ekström, A

AU - Fitzpatrick, C

AU - Fraile, LM

AU - Fransen, CH

AU - Freeman, SJ

AU - Gaffney, Liam Paul

AU - Garcia-Ramos, JE

AU - Geibel, K

AU - Gernhäuser, R

AU - Grahn, Tuomas

AU - Guttormsen, M

AU - Hadinia, B

AU - Hadynska-Klek, K

AU - Hass, M

AU - Heenen, Paul-Henri

AU - Herzberg, R-D

AU - Hess, H

AU - Heyde, Kris

AU - Huyse, Mark

AU - Ivanov, Oleg

AU - Jenkins, DG

AU - Julin, R

AU - Kröll, Thorsten

AU - Krücken, R

AU - Larsen, AC

AU - Lutter, R

AU - Marley, P

AU - Napiorkowski, PJ

AU - Orlandi, Riccardo

AU - Page, RD

AU - Pakarinen, Janne

AU - Patronis, Nikolas

AU - Peura, PJ

AU - Piselli, E

AU - Rahkila, P

AU - Rapisarda, Elisa

AU - Reiter, Peter

AU - Robinson, AP

AU - Scheck, Marcus

AU - Siem, S

AU - Singh Chakkal, K

AU - Smith, JF

AU - Srebrny, J

AU - Stefanescu, Irina

AU - Tveten, GM

AU - Van Duppen, Piet

AU - Van de Walle, Jarno

AU - Voulot, Didier

AU - Warr, Nigel

AU - Wenander, F

AU - Wiens, A

AU - Wood, John L

AU - Zielinska, Magda

A2 - Popescu, Lucia

N1 - Score = 10

PY - 2014/4/25

Y1 - 2014/4/25

N2 - Coulomb-excitation experiments to study electromagnetic properties of radioactive even-even Hg isotopes were performed with 2.85 MeV=nucleon mercury beams from REX-ISOLDE. Magnitudes and relative signs of the reduced E2 matrix elements that couple the ground state and low-lying excited states in 182−188Hg were extracted. Information on the deformation of the ground and the first excited 0+ states was deduced using the quadrupole sum rules approach. Results show that the ground state is slightly deformed and of oblate nature, while a larger deformation for the excited 0þ state was noted in 182;184Hg. The results are compared to beyond mean field and interacting-boson based models and interpreted within a two-state mixing model. Partial agreement with the model calculations was obtained. The presence of two different structures in the light even-mass mercury isotopes that coexist at low excitation energy is firmly established.

AB - Coulomb-excitation experiments to study electromagnetic properties of radioactive even-even Hg isotopes were performed with 2.85 MeV=nucleon mercury beams from REX-ISOLDE. Magnitudes and relative signs of the reduced E2 matrix elements that couple the ground state and low-lying excited states in 182−188Hg were extracted. Information on the deformation of the ground and the first excited 0+ states was deduced using the quadrupole sum rules approach. Results show that the ground state is slightly deformed and of oblate nature, while a larger deformation for the excited 0þ state was noted in 182;184Hg. The results are compared to beyond mean field and interacting-boson based models and interpreted within a two-state mixing model. Partial agreement with the model calculations was obtained. The presence of two different structures in the light even-mass mercury isotopes that coexist at low excitation energy is firmly established.

KW - Coulomb excitation

KW - Hg

KW - REX-ISOLDE

KW - CERN

KW - Miniball

KW - shape coexistence

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_135128

UR - http://knowledgecentre.sckcen.be/so2/bibref/11443

U2 - 10.1103/PhysRevLett.112.162701

DO - 10.1103/PhysRevLett.112.162701

M3 - Article

SN - 0031-9007

VL - 112

SP - 1

EP - 5

JO - Physical review Letters

JF - Physical review Letters

IS - 162701

ER -