The spin-symmetry of the quark model

The spin-symmetry of the quark model

Corrections to the exact heavy–quark symmetry results are expected to come from the inverse powers of the heavy-quark mass. We show, by an explicit calculation using the quark model, that the breaking of the spin symmetry is suppressed by other kinematic effects even when the quark masses are not he...

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Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 1999-06, Vol.9 (2), p.313-317
Hauptverfasser: O'Donnell, P.J., Xu, Q.P., Tung, H.K.K.
Format: Artikel
Sprache:eng
Schlagworte:
Quark models
Quarks
Symmetry
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Zusammenfassung:Corrections to the exact heavy–quark symmetry results are expected to come from the inverse powers of the heavy-quark mass. We show, by an explicit calculation using the quark model, that the breaking of the spin symmetry is suppressed by other kinematic effects even when the quark masses are not heavy.
ISSN:1434-6044
1434-6052
DOI:10.1007/s100529900043