Lattice test of 1/N[subscript c] baryon mass relations
1/N[subscript c] baryon mass relations are compared with lattice simulations of baryon masses using different values of the light-quark masses, and hence different values of SU(3) flavor-symmetry breaking. The lattice data clearly display both the 1/N[subscript c] and SU(3) flavor-symmetry breaking...
Main Authors: | , , , |
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Other Authors: | , |
Format: | Article |
Language: | English |
Published: |
American Physical Society,
2010-07-14T18:39:43Z.
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Subjects: | |
Online Access: | Get fulltext |
Summary: | 1/N[subscript c] baryon mass relations are compared with lattice simulations of baryon masses using different values of the light-quark masses, and hence different values of SU(3) flavor-symmetry breaking. The lattice data clearly display both the 1/N[subscript c] and SU(3) flavor-symmetry breaking hierarchies. The validity of 1/N[subscript c] baryon mass relations derived without assuming approximate SU(3) flavor symmetry also can be tested by lattice data at very large values of the strange quark mass. The 1/N[subscript c] expansion constrains the form of discretization effects; these are suppressed by powers of 1/N[subscript c] by taking suitable combinations of masses. This 1/N[subscript c] scaling is explicitly demonstrated in the present work. |
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