Lattice test of 1/N[subscript c] baryon mass relations
Author(s)Jenkins, Elizabeth E.; Manohar, Aneesh V.; Walker-Loud, André; Negele, John W.
Lattice test of 1/Nc baryon mass relations
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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.
DepartmentMassachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Physical Review D
American Physical Society
Jenkins, Elizabeth E. et al. “Lattice test of 1/Nc baryon mass relations.” Physical Review D 81.1 (2010): 014502. © 2010 The American Physical Society
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