https://doi.org/10.1140/epjc/s10052-021-09820-3
Regular Article - Theoretical Physics
The 
reaction and the 
mixing
1
Department of Physics, Guangxi Normal University, 541004, Guilin, China
2
Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, 541004, Guilin, China
3
Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC Institutos de Investigación de Paterna, Aptdo.22085, 46071, Valencia, Spain
Received:
24
September
2021
Accepted:
5
November
2021
Published online:
20
November
2021
We perform a study of the 
reactions investigating the different sources of isospin violation which make the production of the 
possible. We find that loops involving kaons in the production mechanism provide a source of isospin violation since they do not cancel due to the different mass of charged and neutral kaons, but we also find that the main source comes from the breaking of isospin in the meson-meson transition T matrices, which contain information on the nature of the low lying scalar mesons. The reaction is thus very sensitive to the nature of the and 
resonances. Our results are consistent with the present upper bound for production and only a factor three smaller, indicating that future runs with more statistics should find actual numbers for this reaction from where we can learn more about the origin of the scalar resonances and their nature.
© The Author(s) 2021
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