G Factor of Lithiumlike Silicon and Calcium: Resolving the Disagreement between Theory and Experiment

Standard

G Factor of Lithiumlike Silicon and Calcium: Resolving the Disagreement between Theory and Experiment. / Kosheleva, V. P.; Volotka, A. V.; Glazov, D. A.; Zinenko, D. V.; Fritzsche, S.

In: Physical Review Letters, Vol. 128, No. 1, 103001, 09.03.2022.

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

BibTeX

@article{8b2b26a361ba430e874d1d689541f1ce,

title = "G Factor of Lithiumlike Silicon and Calcium: Resolving the Disagreement between Theory and Experiment",

abstract = "The bound-electron g factor is a stringent tool for tests of the standard model and the search for new physics. The comparison between an experiment on the g factor of lithiumlike silicon and the two recent theoretical values revealed the discrepancies of 1.7σ [Glazov et al. Phys. Rev. Lett. 123, 173001 (2019)PRLTAO0031-900710.1103/PhysRevLett.123.173001] and 5.2σ [Yerokhin et al. Phys. Rev. A 102, 022815 (2020)PLRAAN2469-992610.1103/PhysRevA.102.022815]. To identify the reason for this disagreement, we accomplish large-scale high-precision computation of the interelectronic-interaction and many-electron QED corrections. The calculations are performed within the extended Furry picture of QED, and the dependence of the final values on the choice of the binding potential is carefully analyzed. As a result, we significantly improve the agreement between the theory and experiment for the g factor of lithiumlike silicon. We also report the most accurate theoretical prediction to date for lithiumlike calcium, which perfectly agrees with the experimental value.",

keywords = "ELECTRON G-FACTOR, BOUND-ELECTRON, RADIATIVE-CORRECTIONS, MOMENT, MASS",

author = "Kosheleva, {V. P.} and Volotka, {A. V.} and Glazov, {D. A.} and Zinenko, {D. V.} and S. Fritzsche",

note = "Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

year = "2022",

month = mar,

day = "9",

doi = "10.1103/PhysRevLett.128.103001",

language = "English",

volume = "128",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

}

RIS

TY - JOUR

T1 - G Factor of Lithiumlike Silicon and Calcium: Resolving the Disagreement between Theory and Experiment

AU - Kosheleva, V. P.

AU - Volotka, A. V.

AU - Glazov, D. A.

AU - Zinenko, D. V.

AU - Fritzsche, S.

PY - 2022/3/9

Y1 - 2022/3/9

N2 - The bound-electron g factor is a stringent tool for tests of the standard model and the search for new physics. The comparison between an experiment on the g factor of lithiumlike silicon and the two recent theoretical values revealed the discrepancies of 1.7σ [Glazov et al. Phys. Rev. Lett. 123, 173001 (2019)PRLTAO0031-900710.1103/PhysRevLett.123.173001] and 5.2σ [Yerokhin et al. Phys. Rev. A 102, 022815 (2020)PLRAAN2469-992610.1103/PhysRevA.102.022815]. To identify the reason for this disagreement, we accomplish large-scale high-precision computation of the interelectronic-interaction and many-electron QED corrections. The calculations are performed within the extended Furry picture of QED, and the dependence of the final values on the choice of the binding potential is carefully analyzed. As a result, we significantly improve the agreement between the theory and experiment for the g factor of lithiumlike silicon. We also report the most accurate theoretical prediction to date for lithiumlike calcium, which perfectly agrees with the experimental value.

AB - The bound-electron g factor is a stringent tool for tests of the standard model and the search for new physics. The comparison between an experiment on the g factor of lithiumlike silicon and the two recent theoretical values revealed the discrepancies of 1.7σ [Glazov et al. Phys. Rev. Lett. 123, 173001 (2019)PRLTAO0031-900710.1103/PhysRevLett.123.173001] and 5.2σ [Yerokhin et al. Phys. Rev. A 102, 022815 (2020)PLRAAN2469-992610.1103/PhysRevA.102.022815]. To identify the reason for this disagreement, we accomplish large-scale high-precision computation of the interelectronic-interaction and many-electron QED corrections. The calculations are performed within the extended Furry picture of QED, and the dependence of the final values on the choice of the binding potential is carefully analyzed. As a result, we significantly improve the agreement between the theory and experiment for the g factor of lithiumlike silicon. We also report the most accurate theoretical prediction to date for lithiumlike calcium, which perfectly agrees with the experimental value.

KW - ELECTRON G-FACTOR

KW - BOUND-ELECTRON

KW - RADIATIVE-CORRECTIONS

KW - MOMENT

KW - MASS

UR - http://www.scopus.com/inward/record.url?scp=85126645393&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/02bf4558-fbaa-3396-9dcc-19a53cb1480e/

U2 - 10.1103/PhysRevLett.128.103001

DO - 10.1103/PhysRevLett.128.103001

M3 - Article

C2 - 35333066

AN - SCOPUS:85126645393

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 1

M1 - 103001

ER -

ID: 94411011