| Texto completo | |
| Autor(es): |
Boito, Diogo
;
Golterman, Maarten
;
Maltman, Kim
;
Peris, Santiago
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW D; v. 107, n. 7, p. 13-pg., 2023-04-03. |
| Resumo | |
We describe how recent determinations of exclusive-mode contributions to aLO'HVP hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon, can be used to provide, up to small electromagnetic (EM) corrections accessible from the lattice, a data-based dispersive determination of alqc;IL mu , the isospin-limit, light-quark-connected contribution to aLO'HVP determination is of interest in view of the existence of a number of lattice results for this quantity, emerging evidence for a tension between lattice and dispersive determinations of aLO'HVP clarify the source of this tension. Taking as input for the small EM correction that must be applied to the purely data-driven dispersive determination the result -0.93(58) x 10-10 obtained in a recent BMW lattice study, we find alqc;IL mu to be 635.0(2.7) x 10-10 if the results of Keshavarzi, Nomura, and Teubner are used for the exclusive-mode contributions and 638.4(4.1) x 10-10 if instead those of Davier, Hocker, Malaescu, and Zhang are used. (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 |