Baryon masses in the broken chiral quark bag |
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| Authors: | F Myhrer Z Xu |
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| Institution: | 1. Nordita, Copenhagen, Denmark;2. Department of Physics and Astronomy, University of South Carolina, Columbia, SC 29208, USA;3. Niels Bohr Institute, Copenhagen, Denmark;4. Department of Engineering Physics, Qinghua University, Beijing, People''s Republic of China |
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| Abstract: | We consider corrections to the baryon mass spectrum when the u and the d quarks are massive, i.e. the pion acquires its physical mass. This breaks explicitely the SU(2) chiral symmetry of the chiral quark model. We also include the massive K- and η-mesons to examine the broken SU(3) and SU(3) × SU(3) symmetries. These small corrections do improve the mass spectrum. |
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