Publications (11)
The and Leptonic Widths, and from full lattice QCD
B. Colquhoun, R. J. Dowdall, C. T. H. Davies +2
We determine the decay rate to leptons of the ground-state meson and its first radial excitation in lattice QCD for the first time. We use radiatively-improved NRQCD for the $…
at zero recoil from lattice QCD with physical quarks
B. Colquhoun, R. J. Dowdall, J. Koponen +2
The exclusive semileptonic decay is a key process for the determination of the Cabibbo-Kobayashi-Maskawa matrix element from the comparison of ex…
Improved analysis of strong-interaction-stable doubly-bottom tetraquarks on the lattice
B. Colquhoun, A. Francis, R. J. Hudspith +3
We update earlier lattice results for the binding energies of the flavor antitriplet of strong-interaction-stable doubly bottom, tetraquarks, employing an extended sink c…
Quark mass dependence of doubly heavy tetraquark binding
W. G. Parrott, B. Colquhoun, A. Francis +3
The existence of bound doubly heavy tetraquark states was confirmed by the recent LHCb discovery of the doubly charmed , less than 1 MeV below the meson pair threshold. Oth…
semileptonic decays in lattice QCD with domain-wall heavy quarks
T. Kaneko, Y. Aoki, B. Colquhoun +5
We calculate the form factors in 2+1 flavor relativistic lattice QCD by employing the Möbius domain-wall action for all quark flavors. Our simulations are…
form factors from lattice QCD with relativistic heavy quarks
T. Kaneko, Y. Aoki, G. Bailas +4
We report on our calculation of the B \to D^(*) \ell νform factors in 2+1 flavor lattice QCD. The Möbius domain-wall action is employed for light, strange, charm and bottom quark…