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Data-Driven Determination of the Light-Quark Connected Component of the Intermediate-Window Contribution to the Muon g-2

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Autor(es):
Benton, Genessa ; Boito, Diogo ; Golterman, Maarten ; Keshavarzi, Alexander ; Maltman, Kim ; Peris, Santiago
Número total de Autores: 6
Tipo de documento: Artigo Científico
Fonte: Physical Review Letters; v. 131, n. 25, p. 7-pg., 2023-12-21.
Resumo

We present the first data-driven result for a(mu)(win;lqc), the isospin-limit light-quark connected component of the intermediate-window Hadronic-vacuum-polarization contribution to the muon anomalous magnetic moment. Our result, (198.8 +/- 1.1) x 10(-10), is in significant tension with eight recent mutually compatible high-precision lattice-QCD determinations, and provides enhanced evidence for a puzzling discrepancy between lattice and data-driven determinations of the intermediate-window quantity, one driven largely by a difference in the light-quark connected component. (AU)

Processo FAPESP: 21/06756-6 - Testes do modelo padrão: QCD de precisão e g-2 do múon
Beneficiário:Diogo Rodrigues Boito
Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores - Fase 2