Poincaré constraints on celestial amplitudes
Poincaré constraints on celestial amplitudes
复制标题
天体振幅的庞加莱约束
DOI：
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发表时间：
2019
影响因子：
5.4
通讯作者：
M. Zlotnikov
中科院分区：
文献类型：
--
作者：
Y. Law;M. Zlotnikov
对于各种自旋的无质量外部粒子以及大质量外部标量，在 2、3 和 4 点情况下研究了庞加莱对称性约束的天体振幅的函数结构。发现了功能约束和递归关系（类似于[24]中的发现），它们必须遵守各自允许的相关器结构和函数系数。在涉及大量标量的特定三点情况下，可以求解所得的递归关系，例如，纯粹从对称性再现文献中已知的三点函数系数。此外，作为分析的副产品，Minkowski 签名中胶子的三点函数系数是从天球的振幅图获得的。
The functional structure of celestial amplitudes as constrained by Poincare symmetry is investigated in 2, 3, and 4-point cases for massless external particles of various spin, as well as massive external scalars. Functional constraints and recurrence relations are found (akin to the findings in [24]) that must be obeyed by the respective permissible correlator structures and function coefficients. In specific three-point cases involving massive scalars the resulting recurrence relations can be solved, e.g., reproducing purely from symmetry a three-point function coefficient known in the literature. Additionally, as a byproduct of the analysis, the three-point function coefficient for gluons in Minkowski signature is obtained from an amplitude map to the celestial sphere.
影响因子：
3.5
作者：
Adamo T
通讯作者：
Adamo T