232 citations · 3.1k across the 134 of their papers we have counts for
121 papers · 1 filter
One-loop mixing matrix of the N=1 SYM Supercurrent operator upon renormalization on the Lattice using stout-smeared Links
Marios Costa, Elias Antoniou, Constantinos Costa +2
We extend the perturbative investigation of the renormalization and mixing patterns of the supercurrent operator in lattice supersymmetric Yang-Mills (SYM) theory, usi…
Perturbative Renormalization of Noether Currents in SYM with Improved Discretizations
Marios Costa, Elias Antoniou, Salomi Dimou +4
We investigate the perturbative renormalization of Noether currents associated with chiral symmetry and supersymmetry transformations in supersymmetric Yang-Mills t…
Fine-tunings and renormalization of gluino bilinear operators in lattice SYM with Stout-Smeared links
Marios Costa, Panayiotis Kypros Chrysanthis, Constantinos Costa +3
In this paper, we compute the renormalization factors for the gluino and gluon fields, the gauge parameter, the coupling constant, as well as the scalar, pseudoscalar, and axial-ve…
Classification of four-quark operators with under flavor symmetry and their renormalization in a gauge-invariant scheme
Gregoris Spanoudes, Marios Costa, Kyproulla Mitsidi +1
In this paper we study a complete set of scalar and pseudoscalar four-quark operators, with a particular emphasis on their renormalization within a Gauge-Invariant Renormalization…
N=1 Supersymmetric QCD on the lattice using overlap fermions
Marios Costa, Eleni Ioannou, Haralambos Panagopoulos
Using N=1 Supersymmetric QCD (SQCD) as a prototype model, this work presents a formulation of overlap quarks and gluinos on the lattice, with particular emphasis on the constructio…
Perturbative determination of improvement on the QCD running coupling
Marios Costa, Demetrianos Gavriel, Haralambos Panagopoulos +1
We present the perturbative results of the discretization errors proportional to the quark mass () on the QCD running coupling within lattice perturbation theory.…
Gluon nonlocal operator mixing in lattice QCD
Demetrianos Gavriel, Haralambos Panagopoulos, Gregoris Spanoudes
In this study, we explore the renormalization of a comprehensive set of gauge-invariant gluon nonlocal operators on the lattice. We calculate the renormalization factors for these…
Supersymmetric QCD on the lattice: Fine-tuning and counterterms for the Yukawa and quartic couplings
M. Costa, H. Herodotou, H. Panagopoulos
In this study, we determine the fine-tuning of parameters in Supersymmetric QCD, discretized on a Euclidean lattice. Our focus is on the renormalization of Yukawa…
Supersymmetric QCD on the lattice: Fine-tuning and counterterms for the quartic couplings
Marios Costa, Herodotos Herodotou, Haralambos Panagopoulos
In this work we calculate the renormalization of counterterms which arise in the lattice action of Supersymmetric QCD (SQCD). In particular, the fine-tunings for quartic co…
Renormalization of nonlocal gluon operators on the lattice
Demetrianos Gavriel, Haralambos Panagopoulos, Gregoris Spanoudes
We study the renormalization of a complete set of gauge-invariant gluon nonlocal operators in lattice perturbation theory. We determine the mixing pattern under renormalization of…
Renormalization of asymmetric staple-shaped Wilson-line operators in lattice and continuum perturbation theory
Gregoris Spanoudes, Martha Constantinou, Haralambos Panagopoulos
In this work, we study the renormalization of nonlocal quark bilinear operators containing an asymmetric staple-shaped Wilson line at the one-loop level in both lattice and continu…
Perturbative study of renormalization and mixing for asymmetric staple-shaped Wilson-line operators on the lattice
Gregoris Spanoudes, Martha Constantinou, Haralambos Panagopoulos
We present one-loop perturbative results of the renormalization functions for a complete set of nonlocal quark bilinear operators containing an asymmetric staple-shaped Wilson line…
Renormalization of non-local gluon operators in lattice perturbation theory
Demetrianos Gavriel, Haralambos Panagopoulos, Gregoris Spanoudes
In this study, we investigate the renormalization of a complete set of gauge-invariant non-local gluon operators up to one-loop in lattice perturbation theory. Our computations hav…
Renormalization of the Yukawa and Quartic Couplings in Supersymmetric QCD
M. Costa, H. Herodotou, H. Panagopoulos
In this work we perform calculations in order to determine the renormalization factors and the mixing coefficients of the Yukawa and the quartic couplings in Supe…
Mass effects on the QCD -function
Marios Costa, Demetrianos Gavriel, Haralambos Panagopoulos +1
In this study we present lattice results on the QCD -function in the presence of quark masses. The -function is calculated to three loops in perturbation theory and for impro…
Supercurrent renormalization of supersymmetric Yang-Mills theory on the lattice
Georg Bergner, Marios Costa, Haralambos Panagopoulos +3
Supersymmetry on the lattice is explicitly broken by the gluino mass and lattice artifacts. However, it can be restored in the continuum limit by fine tuning the parameters based o…
Noether supercurrent operator mixing from lattice perturbation theory
Georg Bergner, Marios Costa, Haralambos Panagopoulos +2
In this work we present perturbative results for the renormalization of the supercurrent operator, , in Supersymmetric Yang-Mills theory. At the quantum level, t…
Improved renormalization scheme for nonlocal operators
Martha Constantinou, Haralambos Panagopoulos
In this paper we present an improved RI-type prescription appropriate for the non-perturbative renormalization of gauge invariant nonlocal operators. In this prescription, the non-…
Perturbative renormalization of the supercurrent operator in lattice supersymmetric Yang-Mills theory
Georg Bergner, Marios Costa, Haralambos Panagopoulos +2
In this work we perform a perturbative study of the Noether supercurrent operator in the context of Supersymmetric Yang-Mills (SYM) theory on the lattice. The superc…
Supercurrent Renormalization in Supersymmetric Yang-Mills Theory
Georg Bergner, Marios Costa, Haralambos Panagopoulos +4
In this work we study the renormalization of the SUSY Noether current in Supersymmetric = 1 Yang-Mills (SYM) theory on the lattice. In particular, we study the mixing…
Perturbative study of the Gluino-Glue operator in SYM
Marios Costa, George Panagopoulos, Haralambos Panagopoulos +3
We investigate the renormalization of the Gluino-Glue operator, using both Lattice Perturbation Theory (LPT) and a Gauge Invariant Renormalization Scheme (GIRS). The latter scheme…
Gauge-invariant Renormalization of the Gluino-Glue operator
Marios Costa, George Panagopoulos, Haralambos Panagopoulos +1
We study the Gluino-Glue operator in the context of Supersymmetric Yang-Mills (SYM) theory. This composite operator is gauge invariant, and it is directly connected…
Renormalization and Mixing of the Gluino-Glue Operator on the Lattice
Marios Costa, Herodotos Herodotou, Phivos Philippides +1
We study the mixing of the Gluino-Glue operator in =1 Supersymmetric Yang-Mills theory (SYM), both in dimensional regularization and on the lattice. We calculate its reno…
Two-loop renormalization and mixing of gluon and quark energy-momentum tensor operators
George Panagopoulos, Haralambos Panagopoulos, Gregoris Spanoudes
In this paper, we present one- and two-loop results for the renormalization of the gluon and quark gauge-invariant operators which appear in the definition of the QCD energy-moment…