- Open Access
Role of in the and reactions
Phys. Rev. D 114, 014047 – Published 22 July, 2026
DOI: https://doi.org/10.1103/51l5-sb9w
Abstract
We investigate the strong decay and the radiative decay , taking into account the -wave , and final-state interactions, which dynamically generate the scalar meson . Our results demonstrate that a clear peak structure emerges around 1.8 GeV in the () invariant mass distribution of the strong decay, which can be associated with the resonance. Similarly, a distinct peak is predicted in the invariant mass distribution of the radiative decay. Our results indicate that clear signals of production could be observed in future measurements of these processes at BESIII, Belle II, and the planned Super Tau-Charm Facility, thereby helping to determine its mass and width more precisely.
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