118 citations · 660 across the 33 of their papers we have counts for
37 papers
Investigating efficient methods for computing four-quark correlation functions
Abdou Abdel-Rehim, Constantia Alexandrou, Joshua Berlin +3
We discuss and compare the efficiency of various methods, combinations of point-to-all propagators, stochastic timeslice-to-all propagators, the one-end trick and sequential propag…
Importance of closed quark loops for lattice QCD studies of tetraquarks
Joshua Berlin, Abdou Abdel-Rehim, Constantia Alexandrou +5
To investigate the light scalar tetraquark candidate (quantum numbers ), a correlation matrix including a variety of two- and four-quark interpolating operator…
Disconnected diagrams with twisted-mass fermions
Abdou Abdel-Rehim, Constantia Alexandrou, Martha Constantinou +6
The latest results from the Twisted-Mass collaboration on disconnected diagrams at the physical value of the pion mass are presented. In particular, we focus on the sigma terms, th…
Direct Evaluation of the Quark Content of Nucleons from Lattice QCD at the Physical Point
A. Abdel-Rehim, C. Alexandrou, M. Constantinou +5
We evaluate the light, strange and charm scalar content of the nucleon using one lattice QCD ensemble generated with two degenerate light quarks with mass fixed to their physical v…
Disconnected quark loop contributions to nucleon observables using twisted clover fermions at the physical value of the light quark mass
Abdou Abdel-Rehim, Constantia Alexandrou, Martha Constantinou +5
We compute the disconnected quark loops contributions entering the determination of nucleon observables, by using a ensemble of twisted mass fermions with a clover term a…
Computation of correlation matrices for tetraquark candidates with and flavor structure
Joshua Berlin, Abdou Abdel-Rehim, Constantia Alexandrou +3
The conjecture that several recently observed mesons have a structure, which is not dominated by an ordinary quark-antiquark pair, but by a four-quark structure, is being actively…