Photodisintegration of the Deuteron

More than 50 years ago, in 1934, Chadwick and Goldhaber (ChG 34) published a paper entitled "A ''Nuclear Photo-effect'': Disintegration of the Diplon by -y-Rays."l in the introduction: They noted "By analogy with the excitation and ionisation of atoms by light, one might expect that any complex nucleus should be excited or ''ionised'', that is, disintegrated, by -y-rays of suitable energy", and fu...