论文标题
单位化的一环graviton-graviton散射
Unitarized one-loop graviton-graviton scattering
论文作者
论文摘要
在这项工作中，我们将重力的爱因斯坦 - 希尔伯特（EH）拉格朗日解释为低能量有效理论的第一项，类似于手性拉格朗日在低能量黑龙的方法中所考虑的理论，或者描述了描述标准模型的对称性破坏部门（SM）。从Dunbar和Norridge对弹性重力 - 格拉维顿散射幅度的一环计算开始，我们使用逆振幅方法（IAM）将IR正则局部波单位化。这种方法扩大了扰动结果的适用性，对木板比例$ m_p $的较高能量的适用性，并允许在第二个riemann中具有对动态谐振的自然解释的可能性。在这项工作中，我们为$ ++++ $和$ - $ helicity频道以及$ j = 0 $，$ 2 $和$ 4 $ partial Waves寻找这些可能的共鸣。
In this work we interpret the Einstein-Hilbert (EH) Lagrangian of gravitation as the first term of a low-energy effective theory similar to those considered in the chiral Lagrangian approach to low-energy hadron physics or the electroweak chiral Lagragians describing the symmetry breaking sector of the Standard Model (SM). Starting from the one-loop computation of the elastic graviton-graviton scattering amplitude by Dunbar and Norridge, we unitarize the IR regularized partial waves by using the Inverse Amplitude Method (IAM). This method enlarges the regime of applicability of the perturbative results to higher energies of the order of the Plank scale $M_P$ and allows for the possibility of poles in the second Riemann which have the natural interpretation of dynamical resonances. In this work we look for these possible resonances for the $++++$ and $ -- -$ helicity channels and the $J=0$, $2$ and $4$ partial waves.
