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N and N to Δ transition form factors from lattice QCD
(2007)
We present recent lattice QCD results on nucleon form factors and N to Δ transition form factors. We predict the parity violating asymmetry in N to Δ and check the off-diagonal Goldberger-Treiman relation.
Nucleon to Δ and Δ form factors in lattice QCD
(2012)
We present recent lattice QCD results on the electroweak nucleon to Δ transition and Δ form factors using dynamical fermion gauge configurations with a lowest pion mass of about 300 MeV, with special emphasis in the ...
Hadron deformation and form factors from lattice QCD
(2007)
We review the current status of lattice QCD studies of the nucleon system. In particular, we focus on the determination of the shape of the nucleon by probing its wave function as well as by evaluating the N to Δ transition ...
Hadron physics and lattice QCD
(2013)
A review of recent lattice QCD hadron structure calculations is presented. Important hadronic properties such as the axial charge and spin content of the nucleon, as well as, the mass and axial charge of hyperons and charmed ...
Lattice investigation of the scalar mesons a0(980) and κ using four-quark operators
(2013)
We carry out an exploratory study of the isospin one a0(980) and the isospin one-half κ scalar mesons using Nf = 2 + 1 + 1 Wilson twisted mass fermions at one lattice spacing. The valence strange quark is included as an ...
One-loop renormalization of fermionic currents with the overlap-Dirac operator
(2000)
We compute the one-loop lattice renormalization of the two-quark operators ψ̄Γψ, where Γ denotes the generic Dirac matrix, for the lattice formulation of QCD using the overlap-Dirac operator. We also study the renormalization ...
Δ(1232) axial charge and form factors from lattice QCD
(2011)
We present the first calculation on the Δ axial vector and pseudoscalar form factors using lattice QCD. Two Goldberger-Treiman relations are derived and examined. A combined chiral fit is performed to the nucleon axial ...
Evaluation of fermion loops applied to the calculation of the η ′ mass and the nucleon scalar and electromagnetic form factors
(2012)
The exact evaluation of the disconnected diagram contributions to the flavor-singlet pseudo-scalar meson mass, the nucleon σ-term and the nucleon electromagnetic form factors is carried out utilizing GPGPU technology with ...
Hadron structure from lattice QCD
(2015)
We review results for hadron masses and hadron structure using maximally twisted mass fermions for our non-perturbative studies of lattice QCD. We demonstrate that hadron masses can be computed reliably in this setup and ...
Hadron properties from lattice QCD
(2014)
We discuss the status of current dyanmical lattice QCD simulations in connection to the emerging results on the low-lying baryon spectrum, excited states of the nucleon and the investigation of the structure of scalar ...