Dynamical suppression of the spin-orbit interaction in hadrons |
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Authors: | A M Badalian A V Nefediev Yu A Simonov |
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Institution: | (1) Institute of Theoretical and Experimental Physics, Moscow, 117218, Russia |
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Abstract: | A 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 2πσ, 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.
The text was submitted by the authors in English. |
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Keywords: | |
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