论文标题
高碳的Graviton-Graviton散射中的标量共振：Gaffiball
Scalar resonance in graviton-graviton scattering at high-energies: the graviball
论文作者
论文摘要
我们研究了将其出生的术语单位后的部分波幅度研究的Graviton-Graviton散射。为了基于单位性和分析性应用S-Matrix技术，我们引入了与此重新召集相关的S-矩阵，该S-Matrix不含红外差异。这是通过删除由温伯格计算出的不同相位因子乘以S矩阵的，这实现的，这源于虚拟红外重力。带有真空量子数（j^{pc} = 0^{++}）的标量重力 - 格拉维顿共振，在非信用s波振幅中以极点的形式获得，我们将其称为{\ it graviball}。其沿物理实轴轴的共振效应可能在值大大低于该理论的紫外线截止方面达到峰值。对于某些情况，这种现象可能在相对较低的能量尺度上产生现象学后果，与QCD中的σ谐振类似。
We study graviton-graviton scattering in partial-wave amplitudes after unitarizing their Born terms. In order to apply S-matrix techniques, based on unitarity and analyticity, we introduce an S-matrix associated to this resummation that is free of infrared divergences. This is achieved by removing the diverging phase factor calculated by Weinberg that multiplies the S matrix, and that stems from the virtual infrared gravitons. A scalar graviton-graviton resonance with vacuum quantum numbers (J^{PC}=0^{++}) is obtained as a pole in the nonperturbative S-wave amplitude, which we call the {\it graviball}. Its resonant effects along the physical real-s axis may peak at values substantially lower than the UV cutoff squared of the theory. For some scenarios, this phenomenon could have phenomenological consequences at relatively low-energy scales, similarly to the σresonance in QCD.
