Work

Study of B → ρ η , ρ η ′ decays in the modified perturbative QCD approach

Year: 2025

Type: article

Abstract: We study the decay processes of B → ρ η , ρ η ′ in the perturbative quantum chromodynamics (QCD) approach with a few improvements incorporated in it, where the contributions with large momentum transfer are calculated perturbatively, and the contributions with lower energy scale are treated by introducing soft transition form factors. In addition, color-octet contributions are introduced which are essentially long-distance contributions. With reasonable input parameters selected, we find that the theoretical results of the branching ratios and C P violations are all consistent with experimental data. We also predict some unmeasured quantities, which can be tested by experiment in the future.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.111.036007

Authors: Yun-Han Gui, Mao-Zhi Yang

Institution: Nankai University

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

Funder: National Natural Science Foundation of China

Awards: G2198258684, G6882727530