Data-driven approximations to the Hadronic Light-by-Light scattering contribution to the muon (g - 2)

被引:0
|
作者
Masjuan, P. [1 ,2 ,3 ]
Roig, P. [4 ]
机构
[1] Univ Autonoma Barcelona, Dept Fis, Grup Fis Teor, Bellaterra 08193, Barcelona, Spain
[2] Inst Fis Altes Energies IFAE, Campus UAB, Bellaterra 08193, Barcelona, Spain
[3] Barcelona Inst Sci & Technol BIST, Campus UAB, Bellaterra 08193, Barcelona, Spain
[4] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Apdo Postal 14-740, Mexico City 07000, Mexico
关键词
SHORT-DISTANCE CONSTRAINTS; ANOMALOUS MAGNETIC-MOMENT; MESON CONTRIBUTIONS; SPECTRAL FUNCTIONS; FORM-FACTOR; SIGMA(E(+)E(-); PI(+)PI(-));
D O I
10.1393/ncc/i2024-24246-1
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We review recent progress on the numerical determination of the Hadronic Light-by-Light contribution to the anomalous magnetic moment of the muon. We advocate for a slight increase of the White Paper number for its Standard Model prediction, to (102 +/- 17) x 10-11, accounting for a revised contribution from axial-vector mesons and short-distance constraints. This similar to 10% larger result seems to be supported by the most recent lattice QCD evaluations.
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页数:7
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