Bottomonium precision tests from full lattice QCD: Hyperfine splitting, Upsilon leptonic width, and b quark contribution to e(+)e(-) -> hadrons

Hatton, D; Davies, CTH; Koponen, J; Lepage, GP; Lytle, AT

Hatton, D; Davies, CTH (corresponding author), Univ Glasgow, Sch Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland.

PHYSICAL REVIEW D, 2021; 103 (5):

Abstract

We calculate the mass difference between the Upsilon and eta b, and the Upsilon leptonic width from lattice QCD using the highly improved staggered qu......

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