Hyperspherical $\delta \text{-}{\delta }^{\prime }$ potentials

J. M. Munoz-Castaneda, L. M. Nieto, C. Romaniega

The spherically symmetric potential $a\delta (r-r_0)+b{\delta }^{\prime }(r-r_0)$ is generalised for the $d$-dimensional space as a characterisation of a unique selfadjoint extension of the free Ha…