1.2k citations · 1.3k across the 9 of their papers we have counts for
9 papers · 1 filter
The = 1/2 and 3/2 scattering length with domain wall fermions at physical pion mass with all-to-all propagators
Nils Asmussen, Felix Erben, Jonathan Flynn +3
We present our calculations for the = 1/2 and 3/2 s-wave scattering length with physical quark masses, extracted from the interaction energy of Euclidean two-point functi…
Hadronic light-by-light scattering contribution to the muon from lattice QCD: semi-analytical calculation of the QED kernel
Nils Asmussen, En-Hung Chao, Antoine Gérardin +4
Hadronic light-by-light scattering is one of the virtual processes that causes the gyromagnetic factor of the muon to deviate from the value of two predicted by Dirac's theory.…
A variance reduction technique for hadronic correlators with partially twisted boundary conditions
Nils Asmussen, Alessandro Barone, Andreas Jüttner
Partially twisted boundary conditions are widely used for improving the momentum resolution in lattice computations of hadronic correlation functions. The method is however expensi…
Developments in the position-space approach to the HLbL contribution to the muon on the lattice
Nils Asmussen, En-Hung Chao, Antoine Gérardin +4
The measurement of the anomalous magnetic moment of the muon and its prediction allow for a high-precision test of the Standard Model (SM). In this proceedings article we present o…
Hadronic light-by-light scattering in the anomalous magnetic moment of the muon
Nils Asmussen, Antoine Gérardin, Andreas Nyffeler +1
Hadronic light-by-light scattering in the anomalous magnetic moment of the muon is one of two hadronic effects limiting the precision of the Standard Model prediction for thi…
Hadronic light-by-light scattering contribution to the muon g-2 on the lattice
Nils Asmussen, Antoine Gerardin, Jeremy Green +6
We briefly review several activities at Mainz related to hadronic light-by-light scattering (HLbL) using lattice QCD. First we present a position-space approach to the HLbL contrib…
Exploratory studies for the position-space approach to hadronic light-by-light scattering in the muon
Nils Asmussen, Antoine Gérardin, Harvey B. Meyer +1
The well-known discrepancy in the muon between experiment and theory demands further theory investigations in view of the upcoming new experiments. One of the leading uncerta…
Position-space approach to hadronic light-by-light scattering in the muon on the lattice
Nils Asmussen, Jeremy Green, Harvey B. Meyer +1
The anomalous magnetic moment of the muon currently exhibits a discrepancy of about three standard deviations between the experimental value and recent Standard Model predictions.…
Direct calculation of hadronic light-by-light scattering
Jeremy Green, Nils Asmussen, Oleksii Gryniuk +4
We report calculations of hadronic light-by-light scattering amplitudes via lattice QCD evaluation of Euclidean four-point functions of vector currents. These initial results inclu…