CXXXIV. The photo-electric disintegration of three- and four-particle nuclei

Abstract The two-particle and complete photo-electric disintegration cross-sections for three- and four-particle nuclei are calculated, using Gaussian and new exponential wave-functions. By suitable adjustment of a scale constant photo-disintegration, curves can be found with the maximum cross-section at any chosen energy above the threshold. For a given position of the maximum the Gaussian wave functions require a bigger nucleus than the exponential, and then give a larger maximum cross-section. The theoretical predictions are concerned with the small amount of experimental data available, mainly from the inverse processes of p-D and p-T capture. The exponential wave functions appear to fit more reasonably with this evidence.

[1]  J. Irving.  XL. The binding energies of three- and four-particle nuclei. , 1951 .

[2]  F. Mandl,et al.  Photodisintegration of the alpha-particle and the inverse processes , 1951, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[3]  A. Hemmendinger,et al.  Properties of the T 3 ( p , γ ) He 4 Reaction , 1950 .

[4]  W. Fowler,et al.  Investigations of the capture of protons and deuterons by deuterons , 1949 .

[5]  H. Massey,et al.  The capture of neutrons by deuterons , 1948, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[6]  I. N. Sneddon,et al.  The binding energies of very light nuclei , 1947, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[7]  H. Massey,et al.  The scattering of neutrons by deuterons and the nature of nuclear forces , 1941, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[8]  H. Margenau,et al.  Normal States of Nuclear Three- and Four-Body Systems , 1937 .

[9]  Hans A. Bethe,et al.  Nuclear Physics B. Nuclear Dynamics, Theoretical , 1937 .