Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Hadron Spectroscopy and Interactions
$B_c$ spectroscopy using highly improved staggered quarks
A. Lytle*, B. Colquhoun, C. Davies and J. Koponen
Full text: pdf
Published on: May 29, 2019
Abstract
We report on a calculation of $B_c$ ground state and radial excitation energies, obtained from heavy-charm highly improved staggered quark (HISQ) correlators computed on MILC gauge ensembles, with lattice spacings down to $a=0.044$ fm. Using HISQ valence quarks on progressively finer lattices allows us to simulate up to the $b$-quark mass.
In particular we focus on the $B_c(2S)$ energy, which we compare with $O(\alpha_s$)-improved non-relativistic QCD results computed on the same ensembles and recent experimental results from ATLAS.
DOI: https://doi.org/10.22323/1.334.0083
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