Publications (61)
Nonperturbative renormalization of asymmetric staple-shaped operators in twisted mass lattice QCD
Constantia Alexandrou, Simone Bacchio, Krzysztof Cichy +8
Staple-shaped Wilson line operators are necessary for the study of transverse momentum-dependent parton distribution functions (TMDPDFs) in lattice QCD and beyond. In this work, we…
Pion and kaon form factors using twisted-mass fermions
Constantia Alexandrou, Simone Bacchio, Ian Cloët +6
We present a calculation of the scalar, vector and tensor pion and kaon form factors using one ensemble of two degenerate light, a strange and a charm quark () of maxima…
Spin and momentum fraction carried by partons in the nucleon
Constantia Alexandrou, Simone Bacchio, Jacob Finkenrath +6
We determine the momentum fraction and angular momentum carried by quarks and gluons in the proton in lattice QCD. We use four ensembles simulated with up, down, strange and charm…
Adaptive Aggregation-based Domain Decomposition Multigrid for Twisted Mass Fermions
Constantia Alexandrou, Simone Bacchio, Jacob Finkenrath +3
The Adaptive Aggregation-based Domain Decomposition Multigrid method (arXiv:1303.1377) is extended for two degenerate flavors of twisted mass fermions. By fine-tuning the parameter…
DDalphaAMG for Twisted Mass Fermions
Simone Bacchio, Costantia Alexandrou, Jacob Finkenrath +3
We present the Adaptive Aggregation-based Domain Decomposition Multigrid method extended to the twisted mass fermion discretization action. We show comparisons of results as a func…
Smeared -ratio in isospin symmetric QCD with Low Mode Averaging
Simone Bacchio, Alessandro De Santis, Antonio Evangelista +8
Low Mode Average (LMA) is a technique to improve the quality of the signal-to-noise ratio in the long time separation of Euclidean correlation functions. We report on its beneficia…