Exact calculation of a microscopic nucleon spin-orbit potential Reexamination of Brieva-Rook localization

Y.K, Gambhir and Haider, W and J.R, Rook and Syed, Rafi (2016) Exact calculation of a microscopic nucleon spin-orbit potential Reexamination of Brieva-Rook localization. Physical Review C, 93 (054615). pp. 1-11. ISSN 1089-490X

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Abstract

Brieva-Rook approximations for calculating the equivalent local microscopic nucleon-nucleus spin-orbit potential has been examined in the energy region of 65 < E < 500 MeV. We present an exact method for calculating both the direct and the exchange parts of the spin-orbit potential. It has been shown that the series expansion used earlier overestimates both the real and the imaginary parts by about 50%. Our results show that the exchange contribution to the total spin-orbit potential at low energies is only 15% (much smaller than earlier estimates) and becomes negligible around 200-MeV nucleon incident energy. Predictions of the new spin-orbit potential with minor scaling has been found to be in fair agreement with p-208Pb scattering observables from 65to 500 MeV.

Item Type: Article
Subjects: Departments at MU > Manipal Centre for Natural Sciences
Depositing User: MCNS Editor
Date Deposited: 02 May 2017 09:33
Last Modified: 02 May 2017 09:33
URI: http://eprints.manipal.edu/id/eprint/148797

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