t通道奇点的解析式

IF 5.3 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-10-17 DOI:10.1103/wkq9-52wv

Kento Asai, Nagisa Hiroshima, Joe Sato, Ryusei Sato, Masaki J. S. Yang

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引用次数: 0

摘要

t通道奇点是在t通道散射过程中传播的稳定粒子变为壳上态时散射振幅的发散。这种情况要么出现在对撞机实验系统中，要么出现在宇宙粒子产生的环境中。目前还不知道普遍适用的方案。在这项工作中，我们提出了一个新的公式来识别和消除分歧的来源。该方案是充分分析和各种应用可以预期。本研究为该领域的研究提供了有价值的工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analytic prescription for t -channel singularities

The t-channel singularity is a divergence in the scattering amplitude which occurs when a stable particle propagating in t-channel scattering process becomes an on-shell state. Such situations appear either in the system of collider experiments or in the context of the cosmological particle production. No scheme which is generally applicable is known. In this work, we propose a new formulation to identify and remove the source of the divergence. The scheme is fully analytical and various applications can be expected. This work provides a valuable tool in this research field.

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.