Work

Box singularity conditions in box diagrams of decay processes

Year: 2025

Type: article

Abstract: A bstract Since 1959, singularities in single-loop diagrams have been a subject of extensive study, as they are believed to play a crucial role in shaping our understanding of experimental observables. In this work, we investigate the singularities arising from box diagrams in decay processes, which can be categorized into two distinct types. We present a comprehensive analysis of these box singularities, deriving explicit conditional expressions that determine their occurrence and discussing the corresponding physical scenarios.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep10(2025)191

Authors: Chao-Wei Shen, Ming-Yang Duan, Jia-Jun Wu

Institutions: Hangzhou Dianzi University, University of Chinese Academy of Sciences, Chinese Academy of Sciences

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: National Natural Science Foundation of China, Chinese Academy of Sciences, Haixi Institute, Chinese Academy of Sciences

Awards: G1094733649, G328816031, G4842607339, G6925452005, G904559116