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- W2952062678 abstract "We evaluate static properties and semileptonic decays for the ground state of doubly heavy Ξ, Ξ', Ξ * and Ω, Ω', Ω * baryons. Working in the framework of a nonrelativistic quark model, we solve the three-body problem by means of a variational ansatz made possible by heavy-quark spin symmetry constraints. To check the dependence of our results on the inter-quark interaction we use five different quark-quark potentials that include a confining term plus Coulomb and hyperfine terms coming from one-gluon exchange. Our results for static properties (masses, charge radii and magnetic moments) are, with a few exceptions for the magnetic moments, in good agreement with a previous Faddeev calculation. Our much simpler wave functions are used to evaluate semileptonic decays of doubly heavy Ξ, Ξ'(J = 1/2) and Ω, Ω'(J = 1/2) baryons. Our results for the decay widths are in good agreement with calculations done within a relativistic quark model in the quark-diquark approximation." @default.
- W2952062678 created "2019-06-27" @default.
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- W2952062678 date "2007-05-01" @default.
- W2952062678 modified "2023-10-10" @default.
- W2952062678 title "Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model" @default.
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- W2952062678 doi "https://doi.org/10.1140/epja/i2007-10364-y" @default.
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