Faddeev fixed-center approximation to the , and systems
arXiv:2211.04911 · doi:10.1103/PhysRevD.107.034019
Abstract
The three-body , and systems are investigated within the framework of fixed-center approximation to the Faddeev equations, where is treated as the scalar meson . The interactions between , , and are taking from the chiral unitary approach. By scattering the meson on the clusterized system, we find a peak in the modulus squared of the three-body scattering amplitude and it can be associated as a bound state with quantum numbers . Its mass and width are around 2054 MeV and 60 MeV, respectively. This state could be associated to the meson. For the scattering, we find a bump structure around 1900-2000 MeV with quantum numbers . While for the system, there are three structures. One of them is much stable and its mass is about 2130 MeV. It is expected that these theoretical predictions here could be tested by future experimental measurements, such as by the BESIII, BelleII and LHCb collaborations.
10 pages, 15 figures
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