Spin and magnetic moment of Mg33: Evidence for a negative-parity intruder ground state

D. T. Yordanov; M. Kowalska; K. Blaum; M. De Rydt; K. T. Flanagan; P. Lievens; R. Neugart; G. Neyens; H. H. Stroke

doi:10.1103/PhysRevLett.99.212501

Spin and magnetic moment of Mg33: Evidence for a negative-parity intruder ground state

D. T. Yordanov, M. Kowalska, K. Blaum, M. De Rydt, K. T. Flanagan, P. Lievens, R. Neugart, G. Neyens, H. H. Stroke

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

Abstract

We report on the first determination of the nuclear ground-state spin of Mg33, I=3/2, and its magnetic moment, μ=-0.7456(5)μN, by combining laser spectroscopy with nuclear magnetic resonance techniques. These values are inconsistent with an earlier suggested 1 particle-1 hole configuration and provide evidence for a 2 particle-2 hole intruder ground state with negative parity. The results are in agreement with an odd-neutron occupation of the 3/2[321] Nilsson orbital at a large prolate deformation. The discussion emphasizes the need of further theoretical and experimental investigation of the island of inversion, a region previously thought to be well understood.

Original language	English (US)
Article number	212501
Journal	Physical Review Letters
Volume	99
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.99.212501
State	Published - Nov 21 2007

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.99.212501

Cite this

@article{892a5e3b3f424f8f921ca7a955fc0cf6,

title = "Spin and magnetic moment of Mg33: Evidence for a negative-parity intruder ground state",

abstract = "We report on the first determination of the nuclear ground-state spin of Mg33, I=3/2, and its magnetic moment, μ=-0.7456(5)μN, by combining laser spectroscopy with nuclear magnetic resonance techniques. These values are inconsistent with an earlier suggested 1 particle-1 hole configuration and provide evidence for a 2 particle-2 hole intruder ground state with negative parity. The results are in agreement with an odd-neutron occupation of the 3/2[321] Nilsson orbital at a large prolate deformation. The discussion emphasizes the need of further theoretical and experimental investigation of the island of inversion, a region previously thought to be well understood.",

author = "Yordanov, {D. T.} and M. Kowalska and K. Blaum and {De Rydt}, M. and Flanagan, {K. T.} and P. Lievens and R. Neugart and G. Neyens and Stroke, {H. H.}",

year = "2007",

month = nov,

day = "21",

doi = "10.1103/PhysRevLett.99.212501",

language = "English (US)",

volume = "99",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

}

TY - JOUR

T1 - Spin and magnetic moment of Mg33

T2 - Evidence for a negative-parity intruder ground state

AU - Yordanov, D. T.

AU - Kowalska, M.

AU - Blaum, K.

AU - De Rydt, M.

AU - Flanagan, K. T.

AU - Lievens, P.

AU - Neugart, R.

AU - Neyens, G.

AU - Stroke, H. H.

PY - 2007/11/21

Y1 - 2007/11/21

N2 - We report on the first determination of the nuclear ground-state spin of Mg33, I=3/2, and its magnetic moment, μ=-0.7456(5)μN, by combining laser spectroscopy with nuclear magnetic resonance techniques. These values are inconsistent with an earlier suggested 1 particle-1 hole configuration and provide evidence for a 2 particle-2 hole intruder ground state with negative parity. The results are in agreement with an odd-neutron occupation of the 3/2[321] Nilsson orbital at a large prolate deformation. The discussion emphasizes the need of further theoretical and experimental investigation of the island of inversion, a region previously thought to be well understood.

AB - We report on the first determination of the nuclear ground-state spin of Mg33, I=3/2, and its magnetic moment, μ=-0.7456(5)μN, by combining laser spectroscopy with nuclear magnetic resonance techniques. These values are inconsistent with an earlier suggested 1 particle-1 hole configuration and provide evidence for a 2 particle-2 hole intruder ground state with negative parity. The results are in agreement with an odd-neutron occupation of the 3/2[321] Nilsson orbital at a large prolate deformation. The discussion emphasizes the need of further theoretical and experimental investigation of the island of inversion, a region previously thought to be well understood.

UR - http://www.scopus.com/inward/record.url?scp=36348991869&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36348991869&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.99.212501

DO - 10.1103/PhysRevLett.99.212501

M3 - Article

AN - SCOPUS:36348991869

SN - 0031-9007

VL - 99

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

M1 - 212501

ER -

Spin and magnetic moment of Mg33: Evidence for a negative-parity intruder ground state

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this