Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 Isotopes Studied via Coulomb Excitation.

N Bree; K Wrzosek-Lipska; A Petts; A Andreyev; B Bastin; M Bender; A Blazhev; B Bruyneel; P A Butler; J Butterworth; M P Carpenter; Joakim Cederkäll; E Clément; T E Cocolios; A Deacon; J Diriken; Andreas Ekström; C Fitzpatrick; L M Fraile; Ch Fransen; S J Freeman; L P Gaffney; J E García-Ramos; K Geibel; R Gernhäuser; T Grahn; M Guttormsen; B Hadinia; K Hadyńska-Kle K; 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; 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; F Wenander; A Wiens; J L Wood; M Zielińska

doi:10.1103/PhysRevLett.112.162701

Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 Isotopes Studied via Coulomb Excitation.

N Bree, K Wrzosek-Lipska, A Petts, A Andreyev, B Bastin, M Bender, A Blazhev, B Bruyneel, P A Butler, J Butterworth, M P Carpenter, Joakim Cederkäll, E Clément, T E Cocolios, A Deacon, J Diriken, Andreas Ekström, C Fitzpatrick, L M Fraile, Ch FransenS J Freeman, L P Gaffney, J E García-Ramos, K Geibel, R Gernhäuser, T Grahn, M Guttormsen, B Hadinia, K Hadyńska-Kle K, 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, 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, F Wenander, A Wiens, J L Wood, M Zielińska

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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 Hg182-188 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+ state was noted in Hg182,184. 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
Article number	162701
Journal	Physical Review Letters
Volume	112
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.112.162701
Publication status	Published - 2014

Subject classification (UKÄ)

Subatomic Physics

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10.1103/PhysRevLett.112.162701

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Bree, N., Wrzosek-Lipska, K., Petts, A., Andreyev, A., Bastin, B., Bender, M., Blazhev, A., Bruyneel, B., Butler, P. A., Butterworth, J., Carpenter, M. P., Cederkäll, J., Clément, E., Cocolios, T. E., Deacon, A., Diriken, J., Ekström, A., Fitzpatrick, C., Fraile, L. M., ... Zielińska, M. (2014). Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 Isotopes Studied via Coulomb Excitation. Physical Review Letters, 112(16), Article 162701. https://doi.org/10.1103/PhysRevLett.112.162701

@article{ade48b9d2adc4edebd71dd2c2a8955b6,

title = "Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 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 Hg182-188 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+ state was noted in Hg182,184. 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.",

author = "N Bree and K Wrzosek-Lipska and A Petts and A Andreyev and B Bastin and M Bender and A Blazhev and B Bruyneel and Butler, {P A} and J Butterworth and Carpenter, {M P} and Joakim Cederk{\"a}ll and E Cl{\'e}ment and Cocolios, {T E} and A Deacon and J Diriken and Andreas Ekstr{\"o}m and C Fitzpatrick and Fraile, {L M} and Ch Fransen and Freeman, {S J} and Gaffney, {L P} 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 {Hady{\'n}ska-Kle K}, K and M Hass and P-H Heenen and R-D Herzberg 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 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 F Wenander and A Wiens and Wood, {J L} and M Zieli{\'n}ska",

year = "2014",

doi = "10.1103/PhysRevLett.112.162701",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "16",

}

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, C, Freeman, SJ, Gaffney, LP, García-Ramos, JE, Geibel, K, Gernhäuser, R, Grahn, T, Guttormsen, M, Hadinia, B, Hadyńska-Kle K, K, Hass, M, Heenen, P-H, Herzberg, R-D, 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, 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 & Zielińska, M 2014, 'Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 Isotopes Studied via Coulomb Excitation.', Physical Review Letters, vol. 112, no. 16, 162701. https://doi.org/10.1103/PhysRevLett.112.162701

TY - JOUR

T1 - Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 Isotopes Studied via Coulomb Excitation.

AU - Bree, N

AU - Wrzosek-Lipska, K

AU - Petts, A

AU - Andreyev, A

AU - Bastin, B

AU - Bender, M

AU - Blazhev, A

AU - Bruyneel, B

AU - Butler, P A

AU - Butterworth, J

AU - Carpenter, M P

AU - Cederkäll, Joakim

AU - Clément, E

AU - Cocolios, T E

AU - Deacon, A

AU - Diriken, J

AU - Ekström, Andreas

AU - Fitzpatrick, C

AU - Fraile, L M

AU - Fransen, Ch

AU - Freeman, S J

AU - Gaffney, L P

AU - García-Ramos, J E

AU - Geibel, K

AU - Gernhäuser, R

AU - Grahn, T

AU - Guttormsen, M

AU - Hadinia, B

AU - Hadyńska-Kle K, 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 - 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 - Wenander, F

AU - Wiens, A

AU - Wood, J L

AU - Zielińska, M

PY - 2014

Y1 - 2014

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 Hg182-188 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+ state was noted in Hg182,184. 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 Hg182-188 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+ state was noted in Hg182,184. 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.

U2 - 10.1103/PhysRevLett.112.162701

DO - 10.1103/PhysRevLett.112.162701

M3 - Article

C2 - 24815644

SN - 1079-7114

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

M1 - 162701

ER -

Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 Isotopes Studied via Coulomb Excitation.

Abstract

Subject classification (UKÄ)

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