n-p collision mainly leads to 50% of true low
angle scattering and 50% of apparent high angle scattering

| (a) True low angle scattering: the incident
neutron is scattered in the same direction (from left to right)
(the neutron has kept its shell) |
(b) Apparent high angle scattering: the incident
neutron is scattered in the opposite direction (from right to left)
(the neutron shell has been transferred to the target proton) |
Since during collision the neutron shell is shared between the target proton and the core proton of the impinging neutron then the probability that the shell may get fixed to any of the two protons is of 50%, which gives a straightforward explanation to the neutron-proton transmutation from high angle scattering. (You can get the whole article by clicking here)
Main page: Unitary Orbital Conception of Elementary Particles and their Interactions