211 citations · 2.2k across the 72 of their papers we have counts for
15 papers · 1 filter
Towards the P-wave nucleon-pion scattering amplitude in the channel
Srijit Paul, Giorgio Silvi, Constantia Alexandrou +9
We use lattice QCD and the Lüscher method to study elastic pion-nucleon scattering in the isospin channel, which couples to the resonance. Our flavor…
Proton and neutron electromagnetic form factors from lattice QCD
C. Alexandrou, S. Bacchio, M. Constantinou +5
The electromagnetic form factors of the proton and the neutron are computed within lattice QCD using simulations with quarks masses fixed to their physical values. Both connected a…
Calculating the radiative decay width with lattice QCD
Luka Leskovec, Constantia Alexandrou, Stefan Meinel +6
We present the results of our lattice QCD study of the process, where the resonance appears as an enhancement in the transition amplitude. We use clover fer…
Quasi-PDFs from Twisted mass fermions at the physical point
Constantia Alexandrou, Krzysztof Cichy, Martha Constantinou +4
We present results for the flavor non-singlet u-d parton distribution functions within the nucleon using the quasi-PDF approach. The lattice calculation is performed by employing t…
Light-cone PDFs from Lattice QCD
Constantia Alexandrou, Krzysztof Cichy, Martha Constantinou +4
Using the approach proposed a few years ago by X. Ji, it has become feasible to extract parton distribution functions (PDFs) from lattice QCD, a task thought to be extremely diffic…
A Lattice QCD study of the resonance
Luka Leskovec, Constantia Alexandrou, Stefan Meinel +6
We present a lattice QCD study of the resonance with clover fermions at a pion mass of approximately MeV and lattice size fm. We consider two processes in…