https://doi.org/10.1140/epja/i2016-16282-y
Regular Article - Theoretical Physics
Coupled-channels Faddeev AGS calculation of K-ppn and K-ppp quasi-bound states
Department of Physics, Isfahan University of Technology, 84156-83111, Isfahan, Iran
* e-mail: s.marri@ph.iut.ac.ir
Received:
17
May
2016
Accepted:
2
August
2016
Published online:
14
September
2016
Using separable 
- 
potentials in the Faddeev equations, we calculated the binding energies and widths of the 
, 
and 
quasi-bound states on the basis of three- and four-body Alt-Grassberger-Sandhas equations in the momentum representation. One- and two-pole version of - interaction are considered and the dependence of the resulting few-body energy on the two-body - 
potential was investigated. The s -wave [3 + 1] and [2 + 2] sub-amplitudes are obtained by using the Hilbert-Schmidt expansion procedure for the integral kernels. As a result, we found a four-body resonance of the K
-
ppn and quasi-bound states with a binding energy in the range 
55-70 and 
90-100 MeV, respectively. The calculations yielded full width of 
16-20 and 
7-20 MeV.
© SIF, Springer-Verlag Berlin Heidelberg, 2016
