Computation of disconnected contributions to nucleon observables

Constantia Alexandrou , Vincent Drach , Karl Jansen , Giannis Koutsou , Alejandro Vaquero

Authors on Pith no claims yet

classification ✦ hep-lat

keywords disconnectedmassnucleonoperatorscarriedclasscodecompare

read the original abstract

We compare several methods for computing disconnected fermion loops contributing to nucleon three-point functions. The comparison is carried out using one ensemble of $N_f=2+1+1$ twisted mass fermions with pion mass of 373 MeV. The complete set of operators up to one-derivative are examined by developing optimized code for mutli-GPUs. Simple guidelines are given as to the preferable method for each class of operators.

This paper has not been read by Pith yet.

Computation of disconnected contributions to nucleon observables

discussion (0)