An Explicit Expression of Generating Function for One-Loop Tensor Reduction

Autor:	Hu, Chang, Li, Tingfei, Shen, Jiyuan, Xu, Yongqun
Rok vydání:	2023
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	This work introduces an explicit expression for the generation function for the reduction of an $n$-gon to an $(n-k)$-gon. A novel recursive relation of generation function is formulated based on Feynman Parametrization in projective space, involving a single ordinary differential equation. The explicit formulation of generation functions provides crucial insights into the complex analytic structure inherent in loop amplitudes. Comment: 48pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2308.13336 Zobrazit plný text záznamu View this record from Arxiv