Relativistic symmetry suppresses quark spin-orbit splitting |
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| Authors: | Page P R Goldman T Ginocchio J N |
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| Institution: | MS B283, Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. |
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| 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. |
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