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arXiv 2203.03592hep-thgr-qc
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$F^3$、$R^3$与$\u0001d4a9=4$超引力的色-偶命运

The Color-Dual Fates of $F^3$, $R^3$, and $\mathcal{N}=4$ Supergravity

John Joseph M. Carrasco, Matthew Lewandowski, Nicolas H. Pavao

AI总结:

本研究利用色-运动学对偶分析有效场论高能行为,发现$F^3$形变杨-米尔斯理论实现树级色对偶需引入紫外抵消项序列,其振幅与$(DF)^2+\text{YM}$理论的$α'$展开一致,且$F^3$自双拷贝可得到含闭玻色弦的高阶修正引力理论族。

摘要:

我们发现色与运动学之间的对偶性可用于揭示有效场论的高能行为。具体而言,我们证明了被高阶导数$F^3$算符形变的无质量杨-米尔斯规范理论,若要在保持自洽因子化的同时实现树级色对偶,就必须存在一系列额外的四点抵消项,这些抵消项的威尔逊系数被严格固定,且该序列一直延伸至紫外(UV)区域。通过显式计算,我们得到了一个具有启发性的重整化结果:这些振幅与$(DF)^2+\text{YM}$理论产生的振幅的$α'$展开一致,而$(DF)^2+\text{YM}$是一种已知的色对偶理论,其中$F^2$项被赋予了与$1/α'$成正比的质量平方。因此,将自洽的双拷贝构造视为一条物理原理意味着,基于$F^3$的色对偶方案解决$\u0001d4a9=4$超引力中的紫外发散问题,是以牺牲场论的定域性为代价的。类似地,当将$F^3$自身进行双拷贝时,双拷贝自洽性会将$R^3$引力提升为一族包含全阶高阶导数修正的引力理论,其中闭弦玻色弦作为标准伴随型双拷贝包含在内。

英文摘要:

We find that the duality between color and kinematics can be used to inform the high energy behavior of effective field theories. Namely, we demonstrate that the massless gauge theory of Yang-Mills deformed by a higher-derivative $F^3$ operator cannot be tree-level color-dual while consistently factorizing without a tower of additional four-point counterterms with rigidly fixed Wilson coefficients that reaches to the ultraviolet (UV). We find through explicit calculation a suggestive resummation, namely that their amplitudes are consistent with the $α'$ expansion of those generated by the $(DF)^2+\text{YM}$ theory, a known color-dual theory where the $F^2$ term has been given a mass squared proportional to $1 / α'$. As a result, considering consistent double-copy construction as a physical principle implies that an $F^3$-based color-dual resolution of the UV divergence in $\mathcal{N}=4$ supergravity comes at the cost of field-theoretic locality. Similarly, when double-copying $F^3$ with itself, double-copy consistency lifts $R^3$ gravity to a family of gravity theories with an all-order tower of higher-derivative corrections, which includes the closed bosonic string as a standard adjoint-type double-copy.

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