Hadronic light-by-light contribution to the muon anomaly from lattice QCD with infinite volume QED at physical pion mass

被引：4

作者：

Blum, Thomas ^{[1
]}

Christ, Norman ^{[2
]}

Hayakawa, Masashi ^{[3
,4
]}

Izubuchi, Taku ^{[5
,6
]}

Jin, Luchang ^{[1
,6
]}

Jung, Chulwoo ^{[5
]}

Lehner, Christoph ^{[7
]}

Tu, Cheng ^{[1
]}

机构：

[1] Univ Connecticut, Phys Dept, Storrs, CT 06269 USA

[2] Columbia Univ, Phys Dept, New York, NY 10027 USA

[3] Nagoya Univ, Dept Phys, Nagoya 4648602, Japan

[4] RIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan

[5] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA

[6] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

[7] Univ Regensburg, Fak Phys, Univ Str 31, D-93040 Regensburg, Germany

来源：

PHYSICAL REVIEW D | 2025年 / 111卷 / 01期

关键词：

MAGNETIC-MOMENT; MESON CONTRIBUTIONS; G-2; SCATTERING;

D O I：

10.1103/PhysRevD.111.014501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The hadronic light-by-light scattering contribution to the muon anomalous magnetic moment, & eth; g - 2 & THORN;=2, is computed in the infinite volume QED framework with lattice QCD. We report a HLbL mu 1/4 12.47 & eth;1.15 & THORN;& eth;0.95 & THORN; x 10 - 10 where the first error is statistical and the second systematic. The result is mainly based on the 2 & thorn; 1 flavor M & ouml;bius domain wall fermion ensemble with inverse lattice spacing a -1 1 / 4 1.73 GeV, lattice size L 1 / 4 5.5 fm, and m pi 1 / 4 139 MeV, generated by the RBC-UKQCD collaborations. The leading systematic error of this result comes from the lattice discretization. This result is consistent with previous determinations.

引用

页数：30

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