The existence of the quasi-bound state in four-body system

S Marri, MN Nasrabadi - The European Physical Journal A, 2022 - Springer
The possible existence of quasi-bound state in KK¯ NN with quantum numbers J= 0 and I= 0
on the basis of four-body Alt-Grassberger-Sandhas equations in the momentum …

Structure of the (1405) resonance and the reaction

S Marri, MN Nasrabadi, SZ Kalantari - Physical Review C, 2021 - APS
Three-body calculations of the KK¯ N system with quantum numbers I= 1/2, J π=(1 2)+ were
performed. Using separable potentials for two-body interactions, we calculated the π Σ mass …