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Magnetic moments of the doubly charmed and bottomed baryons · arXivDesk

1707.02765Jul 10, 201711 pages, 2 figures

Magnetic moments of the doubly charmed and bottomed baryons

Hao-Song Li, Lu Meng, Zhan-Wei Liu, Shi-Lin Zhu

Phenomenology Experiment Lattice Nuclear Experiment Nuclear Theory

Abstract

The chiral corrections to the magnetic moments of the spin- $\frac{1}{2}$ doubly charmed baryons are systematically investigated up to next-to-next-to-leading order with heavy baryon chiral perturbation theory (HBChPT). The numerical results are calculated up to next-to-leading order: $μ_{Ξ^{++}_{cc}}=-0.25μ_{N}$

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,

μ_{Ξ^{+}_{cc}}=0.85μ_{N}

,

μ_{Ω^{+}_{cc}}=0.78μ_{N}

. We also calculate the magnetic moments of the other doubly heavy baryons, including the doubly bottomed baryons (bbq) and the doubly heavy baryons containing a light quark, a charm quark and a bottom quark (

\{bc\}q

and

μ_{Ξ^{+}_{cc}}=0.85μ_{N}

):

μ_{Ξ^{0}_{bb}}=-0.84μ_{N}

,

μ_{Ξ^{-}_{bb}}=0.26μ_{N}

,

μ_{Ω^{-}_{bb}}=0.19μ_{N}

,

μ_{Ξ^{+}_{\{bc\}q}}=-0.54μ_{N}

,

μ_{Ξ^{0}_{\{bc\}q}}=0.56μ_{N}

,

μ_{Ω^{0}_{\{bc\}q}}=0.49μ_{N}

,

μ_{Ξ^{+}_{[bc]q}}=0.69μ_{N}

,

μ_{Ξ^{0}_{[bc]q}}=-0.59μ_{N}

,

μ_{Ω^{0}_{[bc]q}}=0.24μ_{N}

.

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