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arXiv · hep-ph/9901294

New experimental tests of sum rules for charmed baryon masses

Jerrold Franklin
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Abstract

New experimental measurements are used to test model independent sum rules for charmed baryon masses. Sum rules for medium-strong mass differences are found to be reasonably well satisfied with increasing accuracy, and the new measurements permit an improved prediction of $2778\pm 9$ MeV for the mass of the $Ω_c^{*0}$. But an isospin breaking sum rule for the $Σ_c$ mass splittings is still in significant disagreement posing a serious problem for the quark model of charmed baryons. Individual $Σ_c$ mass splittings are investigated, using the new CLEO measurement of the $Ξ_c^\prime$ mass splitting, but the accuracy is not yet sufficient for a good test.

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Jerrold Franklin. 1999-01-13. New experimental tests of sum rules for charmed baryon masses. https://doi.org/10.1103/physrevd.59.117502

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