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arXiv 2010.13435hep-thgr-qchep-ph
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大质量量子粒子的圈能级双拷贝

Loop-Level Double-Copy for Massive Quantum Particles

John Joseph M. Carrasco, Ingrid A. Vazquez-Holm

摘要:

我们发现,大质量标量QCD中的散射振幅可以在圈的层次上体现颜色和运动学的对偶性。具体来说,我们构建了一个循环的被积函数的四点散射之间的两个不同的大规模标量,和五点过程编码的第一个修正的大规模标量散射胶子辐射。我们发现,因式分解和颜色运动学的二重性是足够的原则,完全引导这些计算,使我们能够构建所有的贡献,最终从三点树级振幅本身是完全受对称性约束。双拷贝构造立即提供了在所谓的N=0超引力理论中大质量标量散射的相关预测。

英文摘要:

We find that scattering amplitudes in massive scalar QCD can manifest the duality between color and kinematics at loop-level. Specifically we construct the one-loop integrands for four-point scattering between two distinct massive scalars, and the five-point process encoding the first correction to massive scalar scattering with gluonic radiation. We find that factorization and the color-kinematics duality are sufficient principles to entirely bootstrap these calculations, allowing us to construct all contributions ultimately from the three-point tree-level amplitudes which are themselves entirely constrained by symmetry. Double-copy construction immediately provides the associated predictions for massive scalars scattering in the so called N=0 supergravity theory.

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