arXiv:2111.01147·v1·High Energy Physics — Lattice

$b ˉ c ˉ q_{1} q_{2}$ four-quark states from Lattice QCD

We present the results of a lattice calculation of four-quark states with the quark contents $b ˉ c ˉ q_{1} q_{2}$ where $q_{1}, q_{2} \in u, d, s$ . For the spin 1 states, when the light quark ( $q_{1}, q_{2}$ ) masses are lighter, we find at least one energy level below the possible elastic threshold energy levels. These calculations are performed on three dynamical $N_{f} = 2 + 1 + 1$ highly improved staggered quark ensembles at lattice spacings of about 0.12, 0.09, and 0.06 fm. We use the overlap action for light to charm quarks while a non-relativistic action with non-perturbatively improved coefficients is employed for the bottom quark.

Comments: 9 pages, 6 figures. Proceedings of the 38th International Symposium on Lattice Field Theory (LATTICE2021)

bˉcˉq1​q2​four-quark states from Lattice QCD

Abstract

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$b ˉ c ˉ q_{1} q_{2}$ four-quark states from Lattice QCD

Citation historyopen in Citation History ↗