Isospin mass splittings of heavy baryons in HQS

Abstract

In this paper, the electromagnetic mass differences of heavy hadrons are discussed, while ignoring the relevant hyperfine interactions. The effects of one-photon exchange interaction and up-down quark mass difference are parameterized. Two mass difference equations 2Σ_c^+ - (Σ_c^{++} + Σ_c^0) = 2Σ_b^0 - (Σ_b^+ + Σ_b^-) and (Ξ_{cc}^+ - Ξ_{cc}^{++}) + (Ξ_{bb}^- - Ξ_{bb}^{0}) =2(Ξ_{bc}^0 - Ξ_{bc}^{+}) for the heavy baryons are obtained. In addition, the masses of Σ_b^0, Ξ_b^0, and Ξ_{cc}^{++} are predicted based on the known experimental data.

arXiv comment13 pages, 1 table. one section added. version accepted by Phys.Rev.D

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• Masses of doubly and triply charmed baryons
• Search for the doubly charmed baryon ${\Xi }_{cc}^{+}$
• Isospin splittings of doubly heavy baryons
• Isospin splittings in baryons with two heavy quarks
• Measurement of the masses and widths of the bottom baryons Sigma_b+- and Sigma_b*+-
• Search for the doubly charmed baryon ${\Xi }_{cc}^{+}$ in the ${\Xi }_c^{+}{\pi }^{-}{\pi }^{+}$ final state
• Isospin mass differences of singly heavy baryons
• Study of the strong ${\Sigma }_b\to {\Lambda }_b\pi$ and ${\Sigma }_b^{\ast }\to {\Lambda }_b\pi$ in a non-relativistic quark model
• Screening of quark charge and mixing effects on transition moments and M1 decay widths of baryons
• Exclusive $c\to s,d$ semileptonic decays of ground-state spin-1/2 and spin-3/2 doubly heavy $cb$ baryons
• 70 Years of Hyperon Spectroscopy: A review of strange $\Xi$, $\Omega$ baryons, and the spectrum of charmed and bottom baryons
• Status of isospin splittings in mesons and baryons
• Observation of the doubly charmed baryon ${\Xi }_{cc}^{+}$ with the LHCb Run 3 detector
• Lattice QCD: Flavor Physics and Spectroscopy