期刊
PHYSICAL REVIEW D
卷 90, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.90.096001
关键词
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资金
- Austrian Science Fund, FWF [J3392-N20]
- Helmholtz International Center for FAIR within the LOEWE program of the State of Hesse
- DFG collaborative research center [TR 16]
- Austrian Science Fund (FWF) [J 3392] Funding Source: researchfish
- Austrian Science Fund (FWF) [J3392] Funding Source: Austrian Science Fund (FWF)
We determine the baryon octet and decuplet masses as well as their wave functions in a covariant three-body Faddeev approach. We work in an approximation where irreducible three-body forces are neglected. In the two-body interactions we take into account a well-explored rainbow-ladder kernel as well as flavor dependent meson-exchange terms motivated from the underlying quark-gluon interaction. Without flavor dependent forces we find agreement with the experimental spectrum on the 5-10 percent level. Including the flavor dependent terms on an exploratory level delivers a Sigma - Lambda splitting with the correct sign although the magnitude is still too small.
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