SO  is indeed an excellent system to demonstrate that the effect of a strong neutral dipole moment on detachment from a non-σ orbital is not negligible. To take the electron-dipole interactions into account, the free-electron waves describing the continuum in eqn (4) are replaced with the eigenfunctions of an electron moving in the field of a point dipole: (11) In this expansion, the radial parts are represented by non-integer index spherical Bessel functions 𝑓 𝑘𝑟 . Their indices 𝐿 are determined from the eigenvalues of the point-dipole matrix