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The general theory of first-forbidden beta-transitions involves seven nuclear matrix elements in the nonrelativistic approximation. In principle the number of independent parameters can be reduced to four with the help of the relation ( W f - W i ) ( f | X | i ) = ( f | H 0 , X | i ) + ( f | H c...
The complex scattering amplitude for the scattering of light by a Coulomb field (Delbrück scattering) in the forward direction is calculated exactly by two methods. First, the Feynman method is used and necessitates very tedious and complicated calculations. Then, the method of analytical...
A potential well somewhat between a three-dimensional isotropic oscillator and a square well is determined by using a nonlinear meson theory for heavy nuclei in their ground states. The introduction of a phenomenological spin-orbit coupling is shown to group the energy levels obtained according...
The differential cross section for production of high energy protons in n - d scattering, using the 270-Mev neutron beam of the 184-in. cyclotron, has been measured at scattering angles between 4° and 58°. For normalization, yields of protons from n - p scattering were measured at each...
Two kinds of work-hardening are discussed, interaction-hardening and source-hardening. Interaction-hardening arises because a large stress must be applied to move a dislocation through a material which already contains a large number of dislocations. This paper is mainly concerned with...
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