Light-Quark $SU(3)$ Flavour Splitting of Heavy-Light Constituent Diquark Masses and Doubly-Strange Diquarks from QCD Sum-Rules

T. de Oliveira, D. Harnett, R. Kleiv +2

QCD Laplace sum-rules are used to examine the constituent mass spectrum of $J^P\in \{0^{+},1^{+}\}$ heavy-light [Qq] diquarks with $Q\in \{c,b\}$ and $q\in \{u,d,s\}$. As in previous sum-…