Work

The resonance effect for the CP asymmetry associated with the process *

Year: 2024

Type: article

Abstract: The direct CP asymmetry in the weak decay process of hadrons is commonly attributed to the weak phase of the CKM matrix and the indeterminate strong phase. We propose a method to generate a significant phase difference through the interference between ρ and ω mesons, taking into account the G-parity allowed decay process of and the G-parity-suppressed decay process of in B meson decays. This interference can lead to notable changes in the CP asymmetry within the interference region. Additionally, we calculate the integral results for different phase space regions of the four-body decay process. We hope that our work provides valuable theoretical guidance for future experimental investigations on CP asymmetry in these decays.

Source: Chinese Physics C

DOI: 10.1088/1674-1137/ad8ec2

Authors: Xi-Liang 喜亮 Yuan 原, Gang 刚 Lü 吕, Na 娜 Wang 王, Chao 超 Wang 王

Institution: Henan University of Technology

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: hybrid

Estimated APC paid: $2,295

Funder: Natural Science Foundation of Henan Province