Coulomb excitation of Na-29,Na-30: Mapping the borders of the island of inversion

M. Seidlitz; P. Reiter; R. Altenkirch; B. Bastin; C. Bauer; A. Blazhev; N. Bree; B. Bruyneel; P. A. Butler; J. Cederkall; T. Davinson; H. De Witte; D. D. DiJulio; J. Diriken; L. P. Gaffney; K. Geibel; G. Georgiev; R. Gernhaeuser; M. Huyse; N. Kesteloot; T. Kroell; R. Kruecken; R. Lutter; J. Pakarinen; F. Radeck; M. Scheck; D. Schneiders; B. Siebeck; C. Sotty; T. Steinbach; J. Taprogge; P. Van Duppen; J. Van de Walle; D. Voulot; N. Warr; F. Wenander; K. Wimmer; P. J. Woods; K. Wrzosek-Lipska

doi:10.1103/PhysRevC.89.024309

Coulomb excitation of Na-29,Na-30: Mapping the borders of the island of inversion

M. Seidlitz^*, P. Reiter, R. Altenkirch, B. Bastin, C. Bauer, A. Blazhev, N. Bree, B. Bruyneel, P. A. Butler, J. Cederkall, T. Davinson, H. De Witte, D. D. DiJulio, J. Diriken, L. P. Gaffney, K. Geibel, G. Georgiev, R. Gernhaeuser, M. Huyse, N. KestelootT. Kroell, R. Kruecken, R. Lutter, J. Pakarinen, F. Radeck, M. Scheck, D. Schneiders, B. Siebeck, C. Sotty, T. Steinbach, J. Taprogge, P. Van Duppen, J. Van de Walle, D. Voulot, N. Warr, F. Wenander, K. Wimmer, P. J. Woods, K. Wrzosek-Lipska

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Nuclear shell evolution in neutron-rich Na nuclei around N = 20 was studied by determining reduced transition probabilities, i.e., B(E2) and B(M1) values, in order to map the border of the island of inversion. To this end Coulomb-excitation experiments, employing radioactive Na-29,Na-30 beams with a final beam energy of 2.85 MeV/nucleon, were performed at REX-ISOLDE, CERN. De-excitation gamma rays were detected by the MINIBALL gamma-ray spectrometer in coincidence with scattered particles in a segmented Si detector. Transition probabilities to excited states were deduced. The measured B(E2) values agree well with shell-model predictions, supporting the idea that in the Na isotopic chain the ground-state wave function contains significant intruder admixture already at N = 18, with N = 19 having an almost pure two-particle-two-hole deformed ground-state configuration.

Original language	English
Article number	024309
Number of pages	10
Journal	Physical Review C
Volume	89
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.89.024309
Publication status	Published - 19 Feb 2014

Keywords / Materials (for Non-textual outputs)

NUCLEAR-DATA SHEETS
SHELL-MODEL
REGION
BEAM
SPECTROMETER
COLLECTIVITY
DEFORMATION
CHALLENGES
FRONTIERS
MINIBALL

Access to Document

10.1103/PhysRevC.89.024309

Edinburgh Nuclear Physics Group Consolidated Grant Proposal
Woods, P. (Principal Investigator)
STFC
1/08/11 → 31/07/15
Project: Research

THOMAS Davinson
- t.davinsoned.acuk
- School of Physics and Astronomy - Personal Chair of Experimental Nuclear Physics
Person: Academic: Research Active (Research Assistant)

Cite this

Seidlitz, M., Reiter, P., Altenkirch, R., Bastin, B., Bauer, C., Blazhev, A., Bree, N., Bruyneel, B., Butler, P. A., Cederkall, J., Davinson, T., De Witte, H., DiJulio, D. D., Diriken, J., Gaffney, L. P., Geibel, K., Georgiev, G., Gernhaeuser, R., Huyse, M., ... Wrzosek-Lipska, K. (2014). Coulomb excitation of Na-29,Na-30: Mapping the borders of the island of inversion. Physical Review C, 89(2), Article 024309. https://doi.org/10.1103/PhysRevC.89.024309

@article{0a4f377f90f64745a618cadb5fd5f688,

title = "Coulomb excitation of Na-29,Na-30: Mapping the borders of the island of inversion",

abstract = "Nuclear shell evolution in neutron-rich Na nuclei around N = 20 was studied by determining reduced transition probabilities, i.e., B(E2) and B(M1) values, in order to map the border of the island of inversion. To this end Coulomb-excitation experiments, employing radioactive Na-29,Na-30 beams with a final beam energy of 2.85 MeV/nucleon, were performed at REX-ISOLDE, CERN. De-excitation gamma rays were detected by the MINIBALL gamma-ray spectrometer in coincidence with scattered particles in a segmented Si detector. Transition probabilities to excited states were deduced. The measured B(E2) values agree well with shell-model predictions, supporting the idea that in the Na isotopic chain the ground-state wave function contains significant intruder admixture already at N = 18, with N = 19 having an almost pure two-particle-two-hole deformed ground-state configuration.",

keywords = "NUCLEAR-DATA SHEETS, SHELL-MODEL, REGION, BEAM, SPECTROMETER, COLLECTIVITY, DEFORMATION, CHALLENGES, FRONTIERS, MINIBALL",

author = "M. Seidlitz and P. Reiter and R. Altenkirch and B. Bastin and C. Bauer and A. Blazhev and N. Bree and B. Bruyneel and Butler, {P. A.} and J. Cederkall and T. Davinson and {De Witte}, H. and DiJulio, {D. D.} and J. Diriken and Gaffney, {L. P.} and K. Geibel and G. Georgiev and R. Gernhaeuser and M. Huyse and N. Kesteloot and T. Kroell and R. Kruecken and R. Lutter and J. Pakarinen and F. Radeck and M. Scheck and D. Schneiders and B. Siebeck and C. Sotty and T. Steinbach and J. Taprogge and {Van Duppen}, P. and {de Walle}, {J. Van} and D. Voulot and N. Warr and F. Wenander and K. Wimmer and Woods, {P. J.} and K. Wrzosek-Lipska",

year = "2014",

month = feb,

day = "19",

doi = "10.1103/PhysRevC.89.024309",

language = "English",

volume = "89",

journal = "Physical Review C",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

Seidlitz, M, Reiter, P, Altenkirch, R, Bastin, B, Bauer, C, Blazhev, A, Bree, N, Bruyneel, B, Butler, PA, Cederkall, J, Davinson, T, De Witte, H, DiJulio, DD, Diriken, J, Gaffney, LP, Geibel, K, Georgiev, G, Gernhaeuser, R, Huyse, M, Kesteloot, N, Kroell, T, Kruecken, R, Lutter, R, Pakarinen, J, Radeck, F, Scheck, M, Schneiders, D, Siebeck, B, Sotty, C, Steinbach, T, Taprogge, J, Van Duppen, P, de Walle, JV, Voulot, D, Warr, N, Wenander, F, Wimmer, K, Woods, PJ & Wrzosek-Lipska, K 2014, 'Coulomb excitation of Na-29,Na-30: Mapping the borders of the island of inversion', Physical Review C, vol. 89, no. 2, 024309. https://doi.org/10.1103/PhysRevC.89.024309

TY - JOUR

T1 - Coulomb excitation of Na-29,Na-30

T2 - Mapping the borders of the island of inversion

AU - Seidlitz, M.

AU - Reiter, P.

AU - Altenkirch, R.

AU - Bastin, B.

AU - Bauer, C.

AU - Blazhev, A.

AU - Bree, N.

AU - Bruyneel, B.

AU - Butler, P. A.

AU - Cederkall, J.

AU - Davinson, T.

AU - De Witte, H.

AU - DiJulio, D. D.

AU - Diriken, J.

AU - Gaffney, L. P.

AU - Geibel, K.

AU - Georgiev, G.

AU - Gernhaeuser, R.

AU - Huyse, M.

AU - Kesteloot, N.

AU - Kroell, T.

AU - Kruecken, R.

AU - Lutter, R.

AU - Pakarinen, J.

AU - Radeck, F.

AU - Scheck, M.

AU - Schneiders, D.

AU - Siebeck, B.

AU - Sotty, C.

AU - Steinbach, T.

AU - Taprogge, J.

AU - Van Duppen, P.

AU - de Walle, J. Van

AU - Voulot, D.

AU - Warr, N.

AU - Wenander, F.

AU - Wimmer, K.

AU - Woods, P. J.

AU - Wrzosek-Lipska, K.

PY - 2014/2/19

Y1 - 2014/2/19

N2 - Nuclear shell evolution in neutron-rich Na nuclei around N = 20 was studied by determining reduced transition probabilities, i.e., B(E2) and B(M1) values, in order to map the border of the island of inversion. To this end Coulomb-excitation experiments, employing radioactive Na-29,Na-30 beams with a final beam energy of 2.85 MeV/nucleon, were performed at REX-ISOLDE, CERN. De-excitation gamma rays were detected by the MINIBALL gamma-ray spectrometer in coincidence with scattered particles in a segmented Si detector. Transition probabilities to excited states were deduced. The measured B(E2) values agree well with shell-model predictions, supporting the idea that in the Na isotopic chain the ground-state wave function contains significant intruder admixture already at N = 18, with N = 19 having an almost pure two-particle-two-hole deformed ground-state configuration.

AB - Nuclear shell evolution in neutron-rich Na nuclei around N = 20 was studied by determining reduced transition probabilities, i.e., B(E2) and B(M1) values, in order to map the border of the island of inversion. To this end Coulomb-excitation experiments, employing radioactive Na-29,Na-30 beams with a final beam energy of 2.85 MeV/nucleon, were performed at REX-ISOLDE, CERN. De-excitation gamma rays were detected by the MINIBALL gamma-ray spectrometer in coincidence with scattered particles in a segmented Si detector. Transition probabilities to excited states were deduced. The measured B(E2) values agree well with shell-model predictions, supporting the idea that in the Na isotopic chain the ground-state wave function contains significant intruder admixture already at N = 18, with N = 19 having an almost pure two-particle-two-hole deformed ground-state configuration.

KW - NUCLEAR-DATA SHEETS

KW - SHELL-MODEL

KW - REGION

KW - BEAM

KW - SPECTROMETER

KW - COLLECTIVITY

KW - DEFORMATION

KW - CHALLENGES

KW - FRONTIERS

KW - MINIBALL

U2 - 10.1103/PhysRevC.89.024309

DO - 10.1103/PhysRevC.89.024309

M3 - Article

SN - 0556-2813

VL - 89

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024309

ER -

Coulomb excitation of Na-29,Na-30: Mapping the borders of the island of inversion

Abstract

Keywords / Materials (for Non-textual outputs)

Access to Document

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Projects

Edinburgh Nuclear Physics Group Consolidated Grant Proposal

Profiles

THOMAS Davinson

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