Abstract – Publication

Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data.
BOITO, Diogo Rodrigues; GOLTERMAN, Maarten; MALTMAN, Kim; PERIS, Santiago.
Abstract: We point out that the sum of the strange-quark-connected and full three-flavor quark-disconnected contributions to the leading-order hadronic vacuum polarization contribution, aLO;HVP µ , to the anomalous magnetic moment of the muon is a physical observable, and we provide a data-based determination of this quantity in the isospin limit. The result, 40.1ð1.5Þ × 10-10 or 38.7ð2.0Þ × 10-10, depending on which data compilation is used, serves as a target of comparison for lattice calculations of the same isospin-limit combination. Subtracting from this result the average of lattice determinations of the strange-quarkconnected contribution, one also obtains an alternate determination of the isospin-limit three-flavor disconnected contribution to aLO;HVP µ . The result of this determination, -13.3ð1.5Þ × 10-10 or -14.6ð2.0Þ × 10-10, depending on which data compilation is used, agrees well and is competitive with the most precise current lattice determination.
Physical Review D
v. 105, n. 9, p. 093003-1-093003-18 - Ano: 2022
Fator de Impacto: 5,296
    @article={003076922,author = {BOITO, Diogo Rodrigues; GOLTERMAN, Maarten; MALTMAN, Kim; PERIS, Santiago.},title={Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data},journal={Physical Review D},note={v. 105, n. 9, p. 093003-1-093003-18},year={2022}}

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