Isospin mass splittings of heavy baryons in heavy quark symmetry

Journal Article · Wed Oct 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.073013· OSTI ID:21254267

Hwang, C -W; Chung, C -H ^[1]

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1. Department of Physics, National Kaohsiung Normal University, Kaohsiung, Taiwan 824 (China)

In this paper, the electromagnetic mass differences of heavy hadrons are discussed, while the relevant hyperfine interactions are ignored. The effects of one-photon exchange interaction and up-down quark mass difference are parametrized. Two mass difference equations 2{sigma}{sub c}{sup +}-({sigma}{sub c}{sup ++}+{sigma}{sub c}{sup 0})=2{sigma}{sub b}{sup 0}-({sigma}{sub b}{sup +}+{sigma}{sub b}{sup -}) and ({xi}{sub cc}{sup +}-{xi}{sub cc}{sup ++})+({xi}{sub bb}{sup -}-{xi}{sub bb}{sup 0})=2({xi}{sub bc}{sup 0}-{xi}{sub bc}{sup +}) for the heavy baryons are obtained. In addition, the masses of {sigma}{sub b}{sup 0}, {xi}{sub b}{sup 0}, and {xi}{sub cc}{sup ++} are predicted based on the known experimental data.

• OSTI ID: 21254267
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 7; Other Information: DOI: 10.1103/PhysRevD.78.073013; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
BARYONS
C QUARKS
D QUARKS
EQUATIONS
EXCHANGE INTERACTIONS
ISOSPIN
MASS
MASS DIFFERENCE
PHOTONS
SYMMETRY
T QUARKS