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Lattice test of 1/N[subscript c] baryon mass relations

Author(s)
Jenkins, Elizabeth E.; Manohar, Aneesh V.; Walker-Loud, André; Negele, John W.
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Alternative title
Lattice test of 1/Nc baryon mass relations
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
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.
Date issued
2010-01
URI
http://hdl.handle.net/1721.1/56304
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
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
Version: Final published version
ISSN
1550-7998
1550-2368

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