Bottom hadrons from lattice QCD with domain wall and NRQCD fermions
Stefan Meinel, William Detmold, C.-J. David Lin, Matthew Wingate
TL;DR
This paper uses lattice QCD with domain wall and NRQCD fermions to compute the masses of various bottom hadrons, including the first calculation of the triply-bottom Omega_bbb baryon, providing new theoretical mass predictions.
Contribution
It presents the first lattice QCD calculation of the triply-bottom Omega_bbb baryon mass using dynamical 2+1 flavor simulations with domain wall and NRQCD fermions.
Findings
Masses of B mesons and bottom baryons are computed.
First theoretical prediction of the Omega_bbb baryon mass.
Calculation of the bottomonium spectrum included.
Abstract
Dynamical 2+1 flavor lattice QCD is used to calculate the masses of bottom hadrons, including B mesons, singly and doubly bottom baryons, and for the first time also the triply-bottom baryon Omega_bbb. The domain wall action is used for the up-, down-, and strange quarks (both valence and sea), while the bottom quark is implemented with non-relativistic QCD. A calculation of the bottomonium spectrum is also presented.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research