Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-02-02
Physics
Nuclear Physics
Nuclear Theory
17 pages, 12 figures
Scientific paper
10.1016/j.nuclphysa.2010.08.007
Within a covariant Bethe-Salpeter approach a rank-six separable neutron-proton interaction kernel for the triplet coupled $^3S_1$-$^3D_1$ partial-wave state is constructed. Two different methods of a relativistic generalization of initially nonrelativistic form factors parametrizing the kernel are considered. The model parameters are determined by fitting the elastic $^3S_1$ and $^3D_1$ phase shifts and the triplet scattering length as well as the asymptotic $D/S$ ratio of the deuteron wave functions and the deuteron binding energy. The $D$-state probability constraints 4-7\% are taken into account. The deuteron magnetic moment is calculated. The half-off-shell properties are further demonstrated by the Noyes-Kowalski functions. The first test of the constructed kernel is performed by calculating the deuteron electrodisintegration at three different kinematic conditions.
Bondarenko Serge G.
Burov Valentin
Pauchy Hwang W.-Y.
Rogochaya E. P.
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