八阶电子g-2的修正值
Revised value of the eighth-order electron g-2
摘要:
本文用一种新的FORTRAN程序重新计算了一组无闭合轻子圈的图对电子八阶反常磁矩(g-2)的贡献。比较新旧计算的个别图的贡献,我们发现在两个图中的红外减法项的旧处理不一致。修正这个误差后,八阶项的修正值为-1.9144(35)(α/π)^[4]。这一理论变化导致精细结构常数的倒数偏移-6.41180(73)x10^{-7}。
英文摘要:
The contribution to the eighth-order anomalous magnetic moment (g-2) of the electron from a set of diagrams without closed lepton loops is recalculated using a new FORTRAN code generated by an automatic code generator. Comparing the contributions of individual diagrams of old and new calculations, we found an inconsistency in the old treatment of infrared subtraction terms in two diagrams. Correcting this error leads to the revised value -1.9144 (35) (alpha/pi)^4 for the eighth-order term. This theoretical change induces the shift of the inverse of the fine structure constant by -6.41180(73)x10^{-7}.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。