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Magnetic moments of the spin-1over 2 singly charmed baryons in chiral perturbation theory

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arxiv 1803.00229 v2 pith:MDXV3GON submitted 2018-03-01 hep-ph hep-exhep-lat

Magnetic moments of the spin-1over 2 singly charmed baryons in chiral perturbation theory

Guang-Juan Wang , Lu Meng , Hao-Song Li , Zhan-Wei Liu , Shi-Lin Zhu This is my paper
classification hep-ph hep-exhep-lat
keywords baryonscharmedmagneticmomentsorderanalyticalchiralheavy
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We systematically derive the analytical expressions of the magnetic moments of the spin-$1\over 2$ singly charmed baryons to the next-to-next-to-leading order in the heavy baryon chiral perturbation theory (HBChPT). We discuss the analytical relations between the magnetic moments. We estimate the-low energy constants (LECs) in two scenarios. In the first scenario, we use the quark model and Lattice QCD simulation results as input. In the second scenario, the heavy quark symmetry is adopted to reduce the number of the independent LECs, which are then fitted using the data from the Lattice QCD simulations. We give the numerical results to the next-to-leading order for the antitriplet charmed baryons and to the next-to-next-to-leading order for the sextet states.

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  1. Electromagnetic form factors of singly charmed baryons $\Sigma_c$ and $\Lambda_c$ in a covariant quark-diquark model

    hep-ph 2026-07 conditional novelty 4.0

    Spacelike electromagnetic form factors of Σc and Λc are computed in a covariant quark-diquark model, finding compact charge distributions and a charm-quark-dominated magnetic form factor for Λc.