3 years ago

The LOCV asymmetric nuclear matter two-body density distributions versus those of FHNC

Azar Tafrihi
The theoretical computations of the electron–nucleus scattering can be improved, by employing the asymmetric nuclear matter ( A S M ) two-body density distributions ( T B D D ) . But, due to the sophistications of the calculations, the T B D D with arbitrary i s o s p i n asymmetry have not yet been computed in the Fermi H y p e r n e t t e d Chain ( F H N C ) or the Monte Carlo ( M C ) approaches. So, in the present work, we intend to find the A S M T B D D , in the states with i s o s p i n T , spin S and spin projection S z , in the Lowest Order Constrained Variational ( L O C V ) method. It is demonstrated that, at small relative distances, independent of the proton to neutron ratio β , the state-dependent T B D D have a universal shape. Expectedly, it is observed that, at low (high) β values, the nucleons prefer to make a pair in the T = 1 ( 0 ) states. In addition, the strength of the tensor-dependent correlations is investigated, using the ratio of the T B D D in the T S S z = 010 state with θ = π 2 and that of θ = 0 . The mentioned ratios peak at r 0 . 9 f m , considering different β values. It is hoped that, the present results could help a better reproduction of the experimental data of the electron–nucleus scattering.
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