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; Joakim Cederkäll; T. Davinson; H. De Witte; Douglas 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, Joakim Cederkäll, T. Davinson, H. De Witte, Douglas 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

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
Journal	Physical Review C (Nuclear Physics)
Volume	89
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.89.024309
Publication status	Published - 2014

Subject classification (UKÄ)

Subatomic Physics

Access to Document

10.1103/PhysRevC.89.024309

Cite this

Seidlitz, M., Reiter, P., Altenkirch, R., Bastin, B., Bauer, C., Blazhev, A., Bree, N., Bruyneel, B., Butler, P. A., Cederkäll, J., Davinson, T., De Witte, H., DiJulio, 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 (Nuclear Physics), 89(2), Article 024309. https://doi.org/10.1103/PhysRevC.89.024309

@article{c1daf82b5efa424f80e26be96691df0e,

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.",

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 Joakim Cederk{\"a}ll and T. Davinson and {De Witte}, H. and Douglas DiJulio 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",

doi = "10.1103/PhysRevC.89.024309",

language = "English",

volume = "89",

journal = "Physical Review C (Nuclear Physics)",

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, Cederkäll, J, Davinson, T, De Witte, H, DiJulio, D, 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 (Nuclear Physics), vol. 89, no. 2, 024309. https://doi.org/10.1103/PhysRevC.89.024309

TY - JOUR

T1 - Coulomb excitation of Na-29,Na-30: 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 - Cederkäll, Joakim

AU - Davinson, T.

AU - De Witte, H.

AU - DiJulio, Douglas

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

Y1 - 2014

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.

U2 - 10.1103/PhysRevC.89.024309

DO - 10.1103/PhysRevC.89.024309

M3 - Article

SN - 0556-2813

VL - 89

JO - Physical Review C (Nuclear Physics)

JF - Physical Review C (Nuclear Physics)

IS - 2

M1 - 024309

ER -

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

Abstract

Subject classification (UKÄ)

Access to Document

Fingerprint

Cite this