Halcrow C, Harland D. Attractive Spin-Orbit Potential from the Skyrme Model.
PHYSICAL REVIEW LETTERS 2020;
125:042501. [PMID:
32794824 DOI:
10.1103/physrevlett.125.042501]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
We derive the nucleon-nucleon isoscalar spin-orbit potential from the Skyrme model and find good agreement with the Paris potential. This solves a problem that has been open for more than 30 years and gives a new geometric understanding of the spin-orbit force. Our calculation is based on the dipole approximation to skyrmion dynamics and higher order perturbation theory.
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