544 citations · 3.4k across the 66 of their papers we have counts for
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Massive Schwinger model at finite
Vicente Azcoiti, Giuseppe Di Carlo, Eduardo Follana +2
Using the approach developed in [V. Azcoiti, G. Di Carlo, A. Galante, V. Laliena, \textit{Phys. Lett.} \textbf{B563}, (2003) 117], we are able to reconstruct the behavior of the ma…
Antiferromagnetic Ising model in an imaginary magnetic field
Vicente Azcoiti, Giuseppe Di Carlo, Eduardo Follana +1
We study the two-dimensional antiferromagnetic Ising model with a purely imaginary magnetic field, which can be thought of as a toy model for the usual physics. Our motivation…
Topological Index Theorem on the Lattice through the Spectral Flow of Staggered Fermions
V. Azcoiti, G. Di Carlo, E. Follana +1
We investigate numerically the spectral flow introduced by Adams for the staggered Dirac operator on realistic (quenched) gauge configurations. We obtain clear numerical evidence t…
and Antiferromagnetic Ising Model with topological term at
Vicente Azcoiti, Gennaro Cortese, Eduardo Follana +1
We study the two and three-dimensional Antiferromagnetic Ising Model with an imaginary magnetic field at . We use a new geometric algorithm which does not present a sign…
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…
A Geometric Monte Carlo Algorithm for the Antiferromagnetic Ising model with "Topological" Term at
V. Azcoiti, G. Cortese, E. Follana +1
In this work we study the two and three-dimensional antiferromagnetic Ising model with an imaginary magnetic field at . In order to perform numerical simulations of the s…
Phase structure of a generalized Nambu Jona-Lasinio model with Wilson fermions in the mean field or large -expansion
V. Azcoiti, G. Di Carlo, E. Follana +2
We analyze the vacuum structure of a generalized lattice Nambu--Jona-Lasinio model with two flavors of Wilson fermions, such that its continuum action is the most general four-ferm…
The shape of the D -> K semileptonic form factor from full lattice QCD and V_cs
J. Koponen, C. T. H. Davies, G. C. Donald +4
We present a new study of the form factors for D -> K semileptonic decay from lattice QCD that allows us to compare the shape of the vector form factor to experiment and, for the f…
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…
Geometric representation of the 2D Antiferromagnetic Ising Model with topological term at θ=π
V. Azcoiti, G. Cortese, E. Follana +1
We study the two-dimensional Antiferromagnetic Ising Model with an imaginary magnetic field iθat θ=π. We use a new geometric algorithm which does not present a sign problem. This a…
Precise Determinations of the Decay Constants of B and D mesons
Heechang Na, Chris Monahan, Christine Davies +4
Recently we studied the B, Bs, D and Ds meson decay constants using various treatments for the heavy quark. For B mesons, we determined fB, fBs, and fBs/fB with NRQCD bottom quarks…
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…
Elucidating the Vacuum Structure of the Aoki Phase
Vicente Azcoiti, Giuseppe Di Carlo, Eduardo Follana +1
In this paper, we discuss the vacuum structure of QCD with two flavors of Wilson fermions, inside the Aoki phase. We provide numerical evidence, coming from HMC simulations in $4^4…
Heavy meson masses and decay constants from relativistic heavy quarks in full lattice QCD
C. McNeile, C. T. H. Davies, E. Follana +2
We determine masses and decay constants of heavy-heavy and heavy-charm pseudoscalar mesons as a function of heavy quark mass using a fully relativistic formalism known as Highly Im…
Critical behaviour of the O(3) nonlinear sigma model with topological term at theta=pi from numerical simulations
Vicente Azcoiti, Giuseppe Di Carlo, Eduardo Follana +1
We investigate the critical behaviour at theta=pi of the two-dimensional O(3) nonlinear sigma model with topological term on the lattice. Our method is based on numerical simulatio…
|V_cd| from D Meson Leptonic Decays
Heechang Na, Christine T. H. Davies, Eduardo Follana +2
We present an update of the D meson decay constant f_D using the Highly Improved Staggered Quark (HISQ) action for valence charm and light quarks on MILC N_f = 2+1 lattices. The ne…
Spectral Flow and Index Theorem for Staggered Fermions
E. Follana, V. Azcoiti, G. Di Carlo +1
We investigate numerically the spectral flow introduced by Adams for the staggered Dirac operator on realistic gauge configurations. We study both the unimproved and the HISQ Dirac…
The D to K and D to pi semileptonic decay form factors from Lattice QCD
The HPQCD Collaboration, Jonna Koponen, Christine T. H. Davies +5
We present a new and very high statistics study of D and D_s semileptonic decay form factors on the lattice. We work with MILC N_f=2+1 lattices and use the Highly Improved Staggere…
The Upsilon spectrum and the determination of the lattice spacing from lattice QCD including charm quarks in the sea
R. J. Dowdall, B. Colquhoun, J. O. Daldrop +8
We give results for the Upsilon spectrum from lattice QCD using an improved version of the NRQCD action for b quarks which includes radiative corrections to kinetic terms at O(v^4)…
High-Precision and HQET from Relativistic Lattice QCD
C. McNeile, C. T. H. Davies, E. Follana +2
We present a new determination of the leptonic decay constant from lattice QCD simulations that use gluon configurations from MILC and a highly improved discretization of the…
Semileptonic Decays, and 2 Row Unitarity from Lattice QCD
Heechang Na, Christine T. H. Davies, Eduardo Follana +3
We present a new calculation of the semileptonic form factor at based on HISQ charm and light valence quarks on MILC $…
Staggered fermions, zero modes, and flavor-singlet mesons
Gordon C. Donald, Christine T. H. Davies, Eduardo Follana +1
We examine the taste structure of eigenvectors of the staggered-fermion Dirac operator. We derive a set of conditions on the eigenvectors of modes with small eigenvalues (near-zero…
Progress in numerical simulations of systems with a vacuum like term: The two and three-dimensional Ising model within an imaginary magnetic field
Vicente Azcoiti, Eduardo Follana, Alejandro Vaquero
Using the approach developed in \cite{REFVIC2}, we succeeded in reconstructing the behaviour of the antiferromagnetic Ising model with imaginary magnetic field for two and thr…
to semileptonic decay form factors from HISQ light and charm quarks
H. Na, C. T. H. Davies, E. Follana +2
We present a study of semileptonic decays on the lattice which employs the HISQ action for both the charm and the light quarks. We work with MILC unquenched…