Baryon masses and σ terms in SU(3) BChPT × 1/Nc
Baryon masses and nucleon σ terms are studied with the effective theory that combines the chiral and 1/Nc expansions for three flavors. In particular the connection between the deviation of the Gell-Mann–Okubo relation and the σ term associated with the scalar density u¯u+d¯d−2s¯s is emphasized. The...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018-06-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269318303484 |