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- W2560058162 abstract "The spin-orbit interaction is important to understand the nuclear structure. Experiments with radioactive nuclear beam provide the opportunity to study nuclei with large neutron excess even close to the drip line. For drip line isotopes, nuclear shell effects become very important and the spin-orbit part of the nuclear potential plays an essential role. Further, the spin-orbit term plays an important role in the calculation of the spin observables such as analyzing power and spin rotation function in the polarized proton-nucleus scattering. Recently, we have demonstrated the weakening of the spinorbit interaction with the addition of neutrons both for Zr and Sn isotopes [1]. As a step further, we investigate the spin rotation function [2]. This is useful in analyzing spin-orbit interaction and also neutron and proton densities in the nucleus. In the present work, we report the calculation of spin rotation function for polarized protons incident on neutron-deficient, stable and neutronrich Zr and Sn isotopes at 50 MeV. The fully microscopic proton-nucleus optical potentials are generated in the framework of first-order Brueckner theory employing Urbana V14, soft-core internucleon interaction along with the relativistic mean field (RMF) [3] densities both for protons and neutrons. The calculation [4] of the microscopic proton nucleus optical potential mainly involves two steps. First one evaluates the complex effective N – N interaction in the first order Brueckner theory of infinite nuclear matter using realistic inter nucleon interaction. In the second step, this effective interaction is folded with the ground state target nuclear densities to obtain the nucleon nucleus optical potential. It is important to note that in these calculations the medium modification and Pauli's correction have been fully taken into account. Since the effective interaction is complex, this approach consistently yields both the real and imaginary parts of the nucleon nucleus optical potential. The effective interaction (g-matrices) in this approach is energy and density dependent. Here, we follow the approach of Haider et al. [4], to calculate the optical potentials for 50 MeV protons incident on Zr and Sn isotopes within the framework of first order Brueckner theory using Urbana V14 soft core inter nucleon interaction, as illustrative examples. The required nucleon (both for protons and neutrons) density distributions for the targets, obtained in the relativistic mean field approach, are employed." @default.
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- W2560058162 date "2009-01-01" @default.
- W2560058162 modified "2023-10-17" @default.
- W2560058162 title "Study of Spin Rotation Function for Polarized Proton Incident on Zr and Sn Isotopes" @default.
- W2560058162 hasPublicationYear "2009" @default.
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