Dynamical suppression of the spin-orbit interaction in hadrons
High Energy Physics - Phenomenology
2009-02-01 v2
Abstract
Spin-dependent interaction in hadrons is considered in the approach of the QCD string. The string moment of inertia, which ensures the correct (inverse) Regge slope 2*pi*sigma, is found to suppress the spin-orbit interaction. For light quarks and moderate angular momenta the suppression constitutes around 25% whereas for large angular momenta the spin-orbit interaction is suppressed by the factor L^(-2/5). For heavy quarks the effect manifests itself as a string correction for the spin-dependent potential.
Keywords
Cite
@article{arxiv.0806.0502,
title = {Dynamical suppression of the spin-orbit interaction in hadrons},
author = {A. M. Badalian and A. V. Nefediev and Yu. A. Simonov},
journal= {arXiv preprint arXiv:0806.0502},
year = {2009}
}
Comments
LaTeX2e, 6 pages, uses jetpl.cls, version to appear in JETP Lett