Solution of the eta-4He problem with quasi-particle formalism
arXiv:1703.06591 · doi:10.1016/j.physletb.2017.07.034
Abstract
The Alt-Grassberger-Sandhas equations for the five-body eta-4N problem are solved for the case of the driving eta N and NN potentials limited to s-waves. The quasi-particle (Schmidt) method is employed to convert the equations into the effective two-body form. Numerical results are presented for the eta-4He scattering length.
8 pages, 5 figures