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CXLVIII. Neutron-widths and the density of nuclear levels

1954; Taylor & Francis; Volume: 45; Issue: 371 Linguagem: Inglês

10.1080/14786441208561141

1941-5990

J.M.C. Scott,

Atomic and Subatomic Physics Research

Summary The theoretical relation between the level width and the mean spacing D of the levels is investigated, using a model with strong configuration-mixing, not strong enough however to destroy the size resonance effect. Rough numerical values of Γ/D are obtained using a previous analysis of the size resonance effect in the thermal-neutron cross sections. The lack of sharpness of the surface of the nucleus has been taken into account, and is responsible for a factor of two or three in the calculated level widths.