### Abstract

The Zeeman line components of the magnetic-dipole (M1) 1 s2 2 s2 2p P 1/2 2 - P 3/2 2 transition in boronlike Ar13+ were experimentally resolved by high-precision emission spectroscopy using the Heidelberg electron beam ion trap. We determined the gyromagnetic (g) factors of the ground and first-excited levels to be g1/2 =0.663(7) and g3/2 =1.333(2), respectively. This corresponds to a measurement of the g factor of a relativistic electron in a bound non- S state of a multielectron ion with a 1.5 parts-per-thousand accuracy. The results are compared to theoretical calculations by means of the configuration interaction Dirac-Fock-Sturmian method including electron correlation effects and additional quantum electrodynamic corrections. Our measurements show that the classical Landé g factor formula is sufficiently accurate to the present level of accuracy in few-electron ions of medium nuclear charge number Z.

Original language | English |
---|---|

Article number | 052501 |

Journal | Physical Review A |

Volume | 76 |

Issue number | 5 |

DOIs | |

Publication status | Published - Nov 5 2007 |

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### ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)

### Cite this

*Physical Review A*,

*76*(5), [052501]. https://doi.org/10.1103/PhysRevA.76.052501

**Zeeman splitting and g factor of the 1 s2 2 s2 2p P 3/2 2 and P 1/2 2 levels in Ar13+.** / Soria Orts, R.; Crespo López-Urrutia, J. R.; Bruhns, H.; González Martínez, A. J.; Harman, Z.; Jentschura, U.; Keitel, C. H.; Lapierre, A.; Tawara, H.; Tupitsyn, I. I.; Ullrich, J.; Volotka, A. V.

Research output: Contribution to journal › Article

*Physical Review A*, vol. 76, no. 5, 052501. https://doi.org/10.1103/PhysRevA.76.052501

}

TY - JOUR

T1 - Zeeman splitting and g factor of the 1 s2 2 s2 2p P 3/2 2 and P 1/2 2 levels in Ar13+

AU - Soria Orts, R.

AU - Crespo López-Urrutia, J. R.

AU - Bruhns, H.

AU - González Martínez, A. J.

AU - Harman, Z.

AU - Jentschura, U.

AU - Keitel, C. H.

AU - Lapierre, A.

AU - Tawara, H.

AU - Tupitsyn, I. I.

AU - Ullrich, J.

AU - Volotka, A. V.

PY - 2007/11/5

Y1 - 2007/11/5

N2 - The Zeeman line components of the magnetic-dipole (M1) 1 s2 2 s2 2p P 1/2 2 - P 3/2 2 transition in boronlike Ar13+ were experimentally resolved by high-precision emission spectroscopy using the Heidelberg electron beam ion trap. We determined the gyromagnetic (g) factors of the ground and first-excited levels to be g1/2 =0.663(7) and g3/2 =1.333(2), respectively. This corresponds to a measurement of the g factor of a relativistic electron in a bound non- S state of a multielectron ion with a 1.5 parts-per-thousand accuracy. The results are compared to theoretical calculations by means of the configuration interaction Dirac-Fock-Sturmian method including electron correlation effects and additional quantum electrodynamic corrections. Our measurements show that the classical Landé g factor formula is sufficiently accurate to the present level of accuracy in few-electron ions of medium nuclear charge number Z.

AB - The Zeeman line components of the magnetic-dipole (M1) 1 s2 2 s2 2p P 1/2 2 - P 3/2 2 transition in boronlike Ar13+ were experimentally resolved by high-precision emission spectroscopy using the Heidelberg electron beam ion trap. We determined the gyromagnetic (g) factors of the ground and first-excited levels to be g1/2 =0.663(7) and g3/2 =1.333(2), respectively. This corresponds to a measurement of the g factor of a relativistic electron in a bound non- S state of a multielectron ion with a 1.5 parts-per-thousand accuracy. The results are compared to theoretical calculations by means of the configuration interaction Dirac-Fock-Sturmian method including electron correlation effects and additional quantum electrodynamic corrections. Our measurements show that the classical Landé g factor formula is sufficiently accurate to the present level of accuracy in few-electron ions of medium nuclear charge number Z.

UR - http://www.scopus.com/inward/record.url?scp=36048970366&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36048970366&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.76.052501

DO - 10.1103/PhysRevA.76.052501

M3 - Article

AN - SCOPUS:36048970366

VL - 76

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 5

M1 - 052501

ER -