论文标题
从实验数据中评估对MUON异常磁矩的三味夸克 - 结合贡献的贡献
Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data
论文作者
论文摘要
我们指出，奇怪的Quark连接，完整的三大夸张夸克 - 与领先的Hadronic真空两极化贡献的贡献，$a_μ^{\ mathrm {\ mathrm {lo，hvp}} $，是对MUON的异常磁性时刻的量子，是一种量子的量级量化，并提供了该量子的确定。结果，$ 40.1（1.5）\ times 10^{ - 10} $，或$ 38.7（2.0）\ times 10^{ - 10} $，具体取决于使用哪个数据汇编，是对晶格计算的比较目标，用于同一isospin-limimimimit组合。从此结果中减去奇怪Quark连接贡献的晶格确定的平均值，还获得了对$a_μ^{\ mathrm {lo，hvp}} $的Isospin-limit三效脱节贡献的替代确定。该确定的结果是$ -13.3（1.5）\ times 10^{ - 10} $，或$ -14.6（2.0）\ times 10^{ - 10} $，具体取决于使用的数据汇编，非常符合，并且具有最精确的当前晶格确定。
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, $a_μ^{\mathrm{LO,HVP}}$, to the anomalous magnetic moment of the muon, is a physical observable, and provide a data-based determination of this quantity in the isospin limit. The result, $40.1(1.5)\times 10^{-10}$, or $38.7(2.0)\times 10^{-10}$, 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-quark-connected contribution, one obtains also an alternate determination of the isospin-limit three-flavor disconnected contribution to $a_μ^{\mathrm{LO,HVP}}$. The result of this determination, $-13.3(1.5)\times 10^{-10}$, or $-14.6(2.0)\times 10^{-10}$, depending on which data compilation is used, agrees well and is competitive with the most precise current lattice determination.
