Work

Pinpointing physical solutions in Y ( 4230 ) decays

Year: 2025

Type: article

Abstract: To resolve ambiguities from multiple solutions in experimental measurements, we construct a χ 2 function incorporating constraints such as isospin conservation and amplitude relations. By minimizing the global χ 2 , we identify physical solutions for seven hidden-charm decay channels of Y ( 4230 ) . Crucially, the physical solution for Y ( 4230 ) → π + π − J / ψ corresponds to the largest among four experimental solutions, potentially modifying inputs for theoretical calculations. Additionally, we predict Γ e e B ( Y ( 4230 ) → π + π − ψ ′ ) based on our results, acknowledging substantial uncertainties in current measurements.

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

DOI: 10.1103/53ct-3nhw

Authors: Jie Yuan, Yadi Wang, Kai Zhu

Institutions: North China Electric Power University, Institute of High Energy Physics

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Natural Science Foundation of China, Beijing Municipal Natural Science Foundation

Awards: G2486873139, G5722467317, 低能强子物理的实验研究