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arXiv · 1008.3154

Prediction of the Omega_bbb mass from lattice QCD

Stefan Meinel
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Abstract

The mass of the triply heavy baryon Omega_bbb is calculated in lattice QCD with 2+1 flavors of light sea quarks. The b quark is implemented with improved lattice NRQCD. Gauge field ensembles from both the RBC/UKQCD and MILC collaborations with lattice spacings in the range from 0.08 fm to 0.12 fm are used. The final result for the Omega_bbb mass, which includes an electrostatic correction, is 14.371+-0.004(stat)+-0.011(syst)+-0.001(exp) GeV. The hyperfine splitting between the physical J=3/2 state and a fictitious J=1/2 state is also calculated.

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Stefan Meinel. 2010-10-27. Prediction of the Omega_bbb mass from lattice QCD. https://doi.org/10.1103/physrevd.82.114514

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