1. Three body unitary coupled channel analysis on η(1405/1475).
- Author
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Wu, Jia-Jun, Nakamura, Satoshi X., Huang, Qi, Peng, Hai-Ping, Zhang, Yan, and Zhu, Ying-Chun
- Subjects
PHYSICS experiments ,BRANCHING ratios ,CONTINUUM mechanics ,DISTRIBUTION (Probability theory) ,THREE-body problem - Abstract
The new BESIII data on J/ψ → γη(1405/1475) → γKK¯π is more precise than before. A three-body unitary coupled-channel analysis of experimental Monte Carlo outputs for J/ψ → γη(1405/1475) → γKK¯π is introduced. This model does not only fit the γKK¯π Dalitz plot distributions but also the branching ratios of "γππη" and "γγππ" final states relative to that of "γKK¯π". After fitting, we successfully extract the η(1405/1475) pole locations. The η(1405/1475) states are described by two bare states dressed with continuum states. At last, we post predict the distribution of J/ψ → γη(1405/1475) → γππη, γπππ, γγππ. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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