Khuri-Treiman analysis of J / ψ → π + π − π 0
We study the decay J/ψ → π^+π^−π^0 within the framework of the Khuri-Treiman equations. We find that the BESIII experimental dipion mass distribution in the ρ(770)-region is well reproduced with a oncesubtracted P-wave amplitude. Furthermore, we show that F-wave contributions to the amplitude improv...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/102657 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/102657 |
| Access Level: | acceso abierto |
| Palabra clave: | 539.1 Dispersive analysis Integral equations Form factor Scattering Eta Behavior J/PSI PSI' Partículas 2208.07 Física de Partículas |
| Sumario: | We study the decay J/ψ → π^+π^−π^0 within the framework of the Khuri-Treiman equations. We find that the BESIII experimental dipion mass distribution in the ρ(770)-region is well reproduced with a oncesubtracted P-wave amplitude. Furthermore, we show that F-wave contributions to the amplitude improve the description of the data in the ππ mass region around 1.5 GeV. We also present predictions for the J=ψ →π^0γ^* transition form factor. |
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