Exact calculation of a microscopic nucleon spin-orbit potential

Reexamination of Brieva-Rook localization

W. Haider, Syed Rafi, J. R. Rook, Y. K. Gambhir

Research output: Contribution to journalArticle

3 Citations (Scopus)

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<500MeV. 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-Pb208 scattering observables from 65 to 500 MeV.

Original languageEnglish
Article number054615
JournalPhysical Review C
Volume93
Issue number5
DOIs
Publication statusPublished - 19-05-2016

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orbits
series expansion
energy
scaling
nuclei
estimates
predictions
approximation
scattering

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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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<500MeV. 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-Pb208 scattering observables from 65 to 500 MeV.",
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Exact calculation of a microscopic nucleon spin-orbit potential : Reexamination of Brieva-Rook localization. / Haider, W.; Rafi, Syed; Rook, J. R.; Gambhir, Y. K.

In: Physical Review C, Vol. 93, No. 5, 054615, 19.05.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Exact calculation of a microscopic nucleon spin-orbit potential

T2 - Reexamination of Brieva-Rook localization

AU - Haider, W.

AU - Rafi, Syed

AU - Rook, J. R.

AU - Gambhir, Y. K.

PY - 2016/5/19

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AB - Brieva-Rook approximations for calculating the equivalent local microscopic nucleon-nucleus spin-orbit potential has been examined in the energy region of 65<E<500MeV. 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-Pb208 scattering observables from 65 to 500 MeV.

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