Prediction of the Omega_bbb mass from lattice QCD

Understand

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.