186 citations · 1.7k across the 25 of their papers we have counts for
28 papers
Neutral B-meson mixing from full lattice QCD at the physical point
R. J. Dowdall, C. T. H. Davies, R. R. Horgan +4
We calculate the bag parameters for neutral -meson mixing in and beyond the Standard Model, in full four-flavour lattice QCD for the first time. We work on gluon field configura…
Pion electromagnetic form factor from full lattice QCD
Jonna Koponen, Francis Bursa, Christine T. H. Davies +2
We present the first calculation of the pion electromagnetic form factor at physical light quark masses. This form factor parameterises the deviations from the behaviour of a point…
The size of the pion from full lattice QCD with physical , , and quarks
J. Koponen, F. Bursa, C. T. H. Davies +2
We present the first calculation of the electromagnetic form factor of the meson at physical light quark masses. We use configurations generated by the MILC collaboration inclu…
Phenomenology with Lattice NRQCD b Quarks
Brian Colquhoun, Christine T. H. Davies, Rachel J. Dowdall +3
The HPQCD collaboration has used radiatively-improved NonRelativistic QCD (NRQCD) for quarks in bottomonium to determine the decay rate of and mesons to leptons…
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 expe…
B-meson mixing from full lattice QCD with physical u, d, s and c quarks
R. J. Dowdall, C. T. H. Davies, R. R. Horgan +3
We present the first lattice QCD calculation of the and mixing parameters with physical light quark masses. We use MILC gluon field configurations that include , …
The strange and charm quark contributions to the anomalous magnetic moment of the muon from lattice QCD
Jonna Koponen, Bipasha Chakraborty, Christine T. H. Davies +5
We describe a new technique (published in Phys. Rev. D89 114501) to determine the contribution to the anomalous magnetic moment of the muon coming from the hadronic vacuum polarisa…
The strange and charm quark contributions to the anomalous magnetic moment (g -2) of the muon from current-current correlators
Bipasha Chakraborty, Christine Davies, Gordon Donald +5
We describe a new technique (presented in arXiv:1403.1778) to determine the contribution to the anomalous magnetic moment (g-2) of the muon coming from the hadronic vacuum polarisa…
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 $b…
High-precision quark masses and QCD coupling from lattice QCD
Bipasha Chakraborty, C. T. H. Davies, G. C. Donald +6
We present a new lattice QCD analysis of heavy-quark pseudoscalar-pseudoscalar correlators, using gluon configurations from the MILC collaboration that include vacuum polarization…
Strange and charm quark contributions to the anomalous magnetic moment of the muon
Bipasha Chakraborty, C. T. H. Davies, G. C. Donald +4
We describe a new technique to determine the contribution to the anomalous magnetic moment of the muon coming from the hadronic vacuum polarization using lattice QCD. Our method re…
Nonperturbative tests of the renormalization of mixed clover-staggered currents in lattice QCD
Bipasha Chakraborty, Christine Davies, Gordon Donald +3
The Fermilab Lattice and MILC collaborations have shown in one-loop lattice QCD perturbation theory that the renormalization constants of vector and axial-vector mixed clover-asqta…
Bottomonium and B results from full lattice QCD
C. T. H. Davies, B. Colquhoun, B. Galloway +7
We have developed two methods for handling quarks in lattice QCD. One uses NRQCD (now improved to include radiative corrections) and the other uses Highly Improved Staggered Qu…
Pion electromagnetic form factor from full lattice QCD
Jonna Koponen, Francis Bursa, Christine Davies +2
We present preliminary results from the first calculation of the pion electromagnetic form factor at physical light quark masses. This form factor parameterises the deviations from…
B, Bs, K and pi weak matrix elements with physical light quarks
R. J. Dowdall, C. T. H. Davies, R. R. Horgan +4
Calculations of pseudoscalar decay constants of B, Bs, K and pi mesons with physical light quarks are presented. We use HISQ ensembles that include u,d,s and c sea quarks at three…
Bottomonium hyperfine splittings from lattice NRQCD including radiative and relativistic corrections
R. J. Dowdall, C. T. H. Davies, T. Hammant +2
We present a calculation of the hyperfine splittings in bottomonium using lattice Nonrelativistic QCD. The calculation includes spin-dependent relativistic corrections through O(v^…
The mass of the b-quark from lattice NRQCD and lattice perturbation theory
A. J. Lee, C. J. Monahan, R. R. Horgan +3
We present a determination of the b-quark mass accurate through O(α_s^2) in perturbation theory and including partial contributions at O(α_s^3). Nonperturbative input comes from th…
Vus from pi and K decay constants in full lattice QCD with physical u, d, s and c quarks
R. J. Dowdall, C. T. H. Davies, G. P. Lepage +1
We determine the decay constants of the pi and K mesons on gluon field configurations from the MILC collaboration including u, d, s and c quarks. We use three values of the lattice…
B-meson decay constants from improved lattice NRQCD and physical u, d, s and c sea quarks
R. J. Dowdall, C. T. H. Davies, R. R. Horgan +2
We present the first lattice QCD calculation of the decay constants f_B and f_{B_s} with physical light quark masses. We use configurations generated by the MILC collaboration incl…
Direct determination of strange and light quark condensates from full lattice QCD
C. T. H. Davies, C. McNeile, A. Bazavov +4
We determine the strange and light quark condensates in full lattice QCD for the first time. This is done by direct calculation of the expectation value of the trace of the quark p…
Precision tests of the J/psi from full lattice QCD: mass, leptonic width and radiative decay rate to eta_c
C. T. H. Davies, G. C. Donald, R. J. Dowdall +5
We show results from calculations in full lattice QCD of the mass, leptonic width and radiative decay rate to eta_c of the J/psi meson. These provide few % tests of QCD. Another (1…
Direct determination of the strange and light quark condensates from full lattice QCD
C. McNeile, A. Bazavov, C. T. H. Davies +4
We determine the strange quark condensate from lattice QCD for the first time and compare its value to that of the light quark and chiral condensates. The results come from a direc…
Precision tests of the J/ψ from full lattice QCD: mass, leptonic width and radiative decay rate to η_c
G. C. Donald, C. T. H. Davies, R. J. Dowdall +5
We calculate the J/ψ mass, leptonic width and radiative decay rate to γη_c from lattice QCD including u, d and s quarks in the sea for the first time. We use the Highly Improved St…
Precise heavy-light meson masses and hyperfine splittings from lattice QCD including charm quarks in the sea
R. J. Dowdall, C. T. H. Davies, T. C. Hammant +1
We present improved results for the B and D meson spectrum from lattice QCD including the effect of u/d,s and c quarks in the sea. For the B mesons the Highly Improved Staggered Qu…