Relativistic Symmetry Suppresses Quark Spin-Orbit Splitting
High Energy Physics - Phenomenology
2008-11-26 v2 High Energy Physics - Lattice
Nuclear Theory
Abstract
Experimental data indicate small spin-orbit splittings in hadrons. For heavy-light mesons we identify a relativistic symmetry that suppresses these splittings. We suggest an experimental test in electron-positron annihilation. Furthermore, we argue that the dynamics necessary for this symmetry are possible in QCD.
Keywords
Cite
@article{arxiv.hep-ph/0002094,
title = {Relativistic Symmetry Suppresses Quark Spin-Orbit Splitting},
author = {Philip R. Page and Terry Goldman and Joseph. N. Ginocchio},
journal= {arXiv preprint arXiv:hep-ph/0002094},
year = {2008}
}
Comments
16 pages, LaTeX. Two postscript figures. Final version to be published in Physical Review Letters