9737Rb60: The cornerstone of the region of deformation around A ∼ 100

C. Sotty; M. Zielinska; G. Georgiev; D. L. Balabanski; A. E. Stuchbery; A. Blazhev; N. Bree; R. Chevrier; S. Das Gupta; J. M. Daugas; T. Davinson; H. De Witte; J. Diriken; L. P. Gaffney; K. Geibel; K. Hadyńska-Klȩk; F. G. Kondev; J. Konki; T. Kröll; P. Morel; P. Napiorkowski; J. Pakarinen; P. Reiter; M. Scheck; M. Seidlitz; B. Siebeck; G. Simpson; H. Törnqvist; N. Warr; F. Wenander

doi:10.1103/PhysRevLett.115.172501

⁹⁷₃₇Rb₆₀: The cornerstone of the region of deformation around A ∼ 100

C. Sotty, M. Zielinska, G. Georgiev, D. L. Balabanski, A. E. Stuchbery, A. Blazhev, N. Bree, R. Chevrier, S. Das Gupta, J. M. Daugas, T. Davinson, H. De Witte, J. Diriken, L. P. Gaffney, K. Geibel, K. Hadyńska-Klȩk, F. G. Kondev, J. Konki, T. Kröll, P. MorelP. Napiorkowski, J. Pakarinen, P. Reiter, M. Scheck, M. Seidlitz, B. Siebeck, G. Simpson, H. Törnqvist, N. Warr, F. Wenander

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Abstract

Excited states of the neutron-rich nuclei ^97,99Rb were populated for the first time using the multistep Coulomb excitation of radioactive beams. Comparisons of the results with particle-rotor model calculations provide clear identification for the ground-state rotational band of ⁹⁷Rb as being built on the πg_9/2 [431] 3/2⁺Nilsson-model configuration. The ground-state excitation spectra of the Rb isotopes show a marked distinction between single-particle-like structures below N=60 and rotational bands above. The present study defines the limits of the deformed region around A∼100 and indicates that the deformation of
⁹⁷Rb is essentially the same as that observed well inside the deformed region. It further highlights the power of the Coulomb-excitation technique for obtaining spectroscopic information far from stability. The ⁹⁹Rb case demonstrates the challenges of studies with very short-lived postaccelerated radioactive beams.

Original language	English
Article number	172501
Number of pages	6
Journal	Physical Review Letters
Volume	115
Issue number	17
Early online date	20 Oct 2015
DOIs	https://doi.org/10.1103/PhysRevLett.115.172501 https://doi.org/10.1103/PhysRevLett.115.209902
Publication status	Published - 20 Oct 2015
Externally published	Yes

Keywords

Neutron-rich nuclei
Rb
Deformation

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10.1103/PhysRevLett.115.172501Licence: CC BY
10.1103/PhysRevLett.115.209902Licence: CC BY

2015 10 20 Sotty et al CornerstoneFinal published version, 352 KBLicence: CC BY
2015 10 23 Sotty Rb97 FinalFinal published version, 352 KBLicence: CC BY

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Sotty, C., Zielinska, M., Georgiev, G., Balabanski, D. L., Stuchbery, A. E., Blazhev, A., Bree, N., Chevrier, R., Das Gupta, S., Daugas, J. M., Davinson, T., De Witte, H., Diriken, J., Gaffney, L. P., Geibel, K., Hadyńska-Klȩk, K., Kondev, F. G., Konki, J., Kröll, T., ... Wenander, F. (2015). ⁹⁷₃₇Rb₆₀: The cornerstone of the region of deformation around A ∼ 100. Physical Review Letters, 115(17), Article 172501. https://doi.org/10.1103/PhysRevLett.115.172501, https://doi.org/10.1103/PhysRevLett.115.209902

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title = "9737Rb60: The cornerstone of the region of deformation around A ∼ 100",

abstract = "Excited states of the neutron-rich nuclei 97,99Rb were populated for the first time using the multistep Coulomb excitation of radioactive beams. Comparisons of the results with particle-rotor model calculations provide clear identification for the ground-state rotational band of 97Rb as being built on the πg9/2 [431] 3/2+ Nilsson-model configuration. The ground-state excitation spectra of the Rb isotopes show a marked distinction between single-particle-like structures below N=60 and rotational bands above. The present study defines the limits of the deformed region around A∼100 and indicates that the deformation of 97Rb is essentially the same as that observed well inside the deformed region. It further highlights the power of the Coulomb-excitation technique for obtaining spectroscopic information far from stability. The 99Rb case demonstrates the challenges of studies with very short-lived postaccelerated radioactive beams.",

keywords = "Neutron-rich nuclei, Rb, Deformation",

author = "C. Sotty and M. Zielinska and G. Georgiev and Balabanski, {D. L.} and Stuchbery, {A. E.} and A. Blazhev and N. Bree and R. Chevrier and {Das Gupta}, S. and Daugas, {J. M.} and T. Davinson and {De Witte}, H. and J. Diriken and Gaffney, {L. P.} and K. Geibel and K. Hady{\'n}ska-Klȩk and Kondev, {F. G.} and J. Konki and T. Kr{\"o}ll and P. Morel and P. Napiorkowski and J. Pakarinen and P. Reiter and M. Scheck and M. Seidlitz and B. Siebeck and G. Simpson and H. T{\"o}rnqvist and N. Warr and F. Wenander",

year = "2015",

month = oct,

day = "20",

doi = "10.1103/PhysRevLett.115.172501",

language = "English",

volume = "115",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "17",

}

Sotty, C, Zielinska, M, Georgiev, G, Balabanski, DL, Stuchbery, AE, Blazhev, A, Bree, N, Chevrier, R, Das Gupta, S, Daugas, JM, Davinson, T, De Witte, H, Diriken, J, Gaffney, LP, Geibel, K, Hadyńska-Klȩk, K, Kondev, FG, Konki, J, Kröll, T, Morel, P, Napiorkowski, P, Pakarinen, J, Reiter, P, Scheck, M, Seidlitz, M, Siebeck, B, Simpson, G, Törnqvist, H, Warr, N & Wenander, F 2015, '⁹⁷₃₇Rb₆₀: The cornerstone of the region of deformation around A ∼ 100', Physical Review Letters, vol. 115, no. 17, 172501. https://doi.org/10.1103/PhysRevLett.115.172501, https://doi.org/10.1103/PhysRevLett.115.209902

TY - JOUR

T1 - 9737Rb60: The cornerstone of the region of deformation around A ∼ 100

AU - Sotty, C.

AU - Zielinska, M.

AU - Georgiev, G.

AU - Balabanski, D. L.

AU - Stuchbery, A. E.

AU - Blazhev, A.

AU - Bree, N.

AU - Chevrier, R.

AU - Das Gupta, S.

AU - Daugas, J. M.

AU - Davinson, T.

AU - De Witte, H.

AU - Diriken, J.

AU - Gaffney, L. P.

AU - Geibel, K.

AU - Hadyńska-Klȩk, K.

AU - Kondev, F. G.

AU - Konki, J.

AU - Kröll, T.

AU - Morel, P.

AU - Napiorkowski, P.

AU - Pakarinen, J.

AU - Reiter, P.

AU - Scheck, M.

AU - Seidlitz, M.

AU - Siebeck, B.

AU - Simpson, G.

AU - Törnqvist, H.

AU - Warr, N.

AU - Wenander, F.

PY - 2015/10/20

Y1 - 2015/10/20

N2 - Excited states of the neutron-rich nuclei 97,99Rb were populated for the first time using the multistep Coulomb excitation of radioactive beams. Comparisons of the results with particle-rotor model calculations provide clear identification for the ground-state rotational band of 97Rb as being built on the πg9/2 [431] 3/2+ Nilsson-model configuration. The ground-state excitation spectra of the Rb isotopes show a marked distinction between single-particle-like structures below N=60 and rotational bands above. The present study defines the limits of the deformed region around A∼100 and indicates that the deformation of 97Rb is essentially the same as that observed well inside the deformed region. It further highlights the power of the Coulomb-excitation technique for obtaining spectroscopic information far from stability. The 99Rb case demonstrates the challenges of studies with very short-lived postaccelerated radioactive beams.

AB - Excited states of the neutron-rich nuclei 97,99Rb were populated for the first time using the multistep Coulomb excitation of radioactive beams. Comparisons of the results with particle-rotor model calculations provide clear identification for the ground-state rotational band of 97Rb as being built on the πg9/2 [431] 3/2+ Nilsson-model configuration. The ground-state excitation spectra of the Rb isotopes show a marked distinction between single-particle-like structures below N=60 and rotational bands above. The present study defines the limits of the deformed region around A∼100 and indicates that the deformation of 97Rb is essentially the same as that observed well inside the deformed region. It further highlights the power of the Coulomb-excitation technique for obtaining spectroscopic information far from stability. The 99Rb case demonstrates the challenges of studies with very short-lived postaccelerated radioactive beams.

KW - Neutron-rich nuclei

KW - Rb

KW - Deformation

U2 - 10.1103/PhysRevLett.115.172501

DO - 10.1103/PhysRevLett.115.172501

M3 - Article

SN - 0031-9007

VL - 115

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

M1 - 172501

ER -

9737Rb60: The cornerstone of the region of deformation around A ∼ 100

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⁹⁷₃₇Rb₆₀: The cornerstone of the region of deformation around A ∼ 100