Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-12-22
Ukr. J. Phys.52:436, 2007
Physics
Nuclear Physics
Nuclear Theory
9 pages, 4 figures
Scientific paper
We have studied the relations between the neutron-triton scattering lengths and effective ranges and the corresponding quantities for the p --$^{3}$He scattering in the framework of the potential model with an effective nucleon-nucleus interaction in the form of a $\delta $-shell potential. It is shown that the Coulomb renormalization of the pure nuclear scattering lengths does not change the relation well established for the n + $^{3}$H system between the lengths: $A^{1} < A^{0}$. We have predicted the p--$^{3}$He scattering lengths which give preference to set I of the phase analysis performed by E.A. George et al. (2003), which corresponds to the inequality $A^{1}_{nc} < A^{0}_{nc}$ for the scattering lengths.
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