相对论性三体散射中单粒子交换的改进分波投影
An improved partial-wave projection of the one-particle exchange in relativistic three-body scattering
浏览论文内容
中文总结 AI 辅助
本文提出一种改进的有限和表达式,用于相对论性三体散射中单粒子交换的分波投影,适用于任意角动量的三个无自旋粒子,并通过解析和数值检验验证其正确性,提高了处理分波增殖的效率。
中文摘要 AI 辅助
相对论性三体散射振幅的一个关键组成部分是单粒子交换(OPE)过程,其中在入射和出射的两体子系统之间交换单个粒子。我们提出了一个改进的有限和表达式,用于分波OPE,该表达式适用于三个有质量、无自旋的粒子,且适用于任意角动量构型。一系列解析和数值检验表明,我们的有限和表达式再现了分波OPE的已知性质,包括其阈值标度行为和奇点结构。与先前的工作相比,该结果更有效地处理了对任何总角动量$J$有贡献的分波的快速增殖,从而能够为三体振幅分析构建稳健的波集。
英文摘要
A critical component of relativistic three-body scattering amplitudes is the one-particle exchange (OPE) process, wherein a single particle is exchanged between incoming and outgoing two-body subsystems. We present an improved, finite-sum expression for the partial-wave OPE that is valid for three massive, spinless particles in arbitrary angular momentum configurations. A collection of analytic and numerical checks demonstrate that our finite-sum expression reproduces the known properties of the partial-wave OPE, including its threshold scaling behavior and singularity structure. Compared with previous work, this result more efficiently handles the rapid proliferation of partial waves contributing to any total angular momentum $J$, enabling the construction of robust wavesets for three-body amplitude analyses.
发表机构
- Department of Physics, William & Mary(威廉玛丽学院物理系)
- William & Mary(威廉玛丽学院)
- Theory Center, Thomas Jefferson National Accelerator Facility(托马斯·杰斐逊国家加速器设施理论中心)
- Thomas Jefferson National Accelerator Facility(托马斯·杰斐逊国家加速器设施)
机构由 AI 辅助整理,请以论文原文为准。