1.

Systematic uncertainties in parton distribution functions from lattice QCD simulations at the physical point
/ Alexandrou, Constantia ; Cichy, Krzysztof ; Constantinou, Martha ; Hadjiyiannakou, Kyriakos ; et al
We present a detailed study of the helicitydependent and helicityindependent collinear parton distribution functions (PDFs) of the nucleon, using the quasiPDF approach. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.114504
External links: pdf; xml

2.

A Guide to LightCone PDFs from Lattice QCD: An Overview of Approaches, Techniques, and Results
/ Constantinou, Martha ; Cichy, Krzysztof
Within the theory of Quantum Chromodynamics (QCD), the rich structure of hadrons can be quantitatively characterized, among others, using a basis of universal nonperturbative functions: parton distribution functions (PDFs), generalized parton distributions (GPDs), transverse momentum dependent parton distributions (TMDs), and distribution amplitudes (DAs). [...]
Published in Advances in High Energy Physics 2019 (2019) 3036904
10.1155/2019/3036904
arXiv:1811.07248
Fulltext: XML PDF PDF (PDFA);

3.

Oneloop renormalization of stapleshaped operators in continuum and lattice regularizations
/ Constantinou, Martha ; Panagopoulos, Haralambos ; Spanoudes, Gregoris
In this paper we present oneloop results for the renormalization of nonlocal quark bilinear operators, containing a stapleshaped Wilson line, in both continuum and lattice regularizations. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.074508
arXiv:1901.03862
Fulltext: PDF XML;

4.

Transversity parton distribution functions from lattice QCD
/ Alexandrou, Constantia ; Cichy, Krzysztof ; Constantinou, Martha ; Jansen, Karl ; et al
We present the first direct calculation of the renormalized transversity parton distribution function within the nucleon from lattice QCD. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.091503
arXiv:1807.00232
Fulltext: XML PDF;

5.

LightCone Parton Distribution Functions from Lattice QCD
/ Alexandrou, Constantia ; Cichy, Krzysztof ; Constantinou, Martha ; Jansen, Karl ; et al
We extract parton distribution functions (PDFs) of the nucleon from lattice QCD using an ensemble of gauge field configurations simulated with light quark masses fixed to their physical values. [...]
Published in Physical Review Letters 121 (2018)
10.1103/PhysRevLett.121.112001
arXiv:1803.02685
Fulltext: PDF XML;

6.

Topological susceptibility from twisted mass fermions using spectral projectors and the gradient flow
/ Alexandrou, Constantia ; Athenodorou, Andreas ; Cichy, Krzysztof ; Constantinou, Martha ; et al
We compare lattice QCD determinations of topological susceptibility using a gluonic definition from the gradient flow and a fermionic definition from the spectralprojector method. [...]
Published in Phys. Rev. D 97 (2018)
10.1103/PhysRevD.97.074503
arXiv:1709.06596
Fulltext: XML PDF;

7.

A complete nonperturbative renormalization prescription for quasiPDFs
/ Alexandrou, Constantia ; Cichy, Krzysztof ; Constantinou, Martha ; Hadjiyiannakou, Kyriakos ; et al
In this work we present, for the first time, the nonperturbative renormalization for the unpolarized, helicity and transversity quasiPDFs, in an RI′ scheme. [...]
Published in Nuclear Physics B (2017)
10.1016/j.nuclphysb.2017.08.012
Fulltext: XML PDF PDF (PDFA);

8.

First moment of the flavour octet nucleon parton distribution function using lattice QCD
/ Alexandrou, Constantia ; Constantinou, Martha ; Dinter, Simon ; Drach, Vincent ; et al
We perform a lattice computation of the flavour octet contribution to the average quark momentum in the nucleon, x μ 2 = 4 GeV 2 8 $$ {\left\langle x\right\rangle}_{\mu^2=4\kern0.5em {\mathrm{GeV}}^2}^{\left((8)\right.} $$ . [...]
Published in JHEP 1506 (2015) 068
10.1007/JHEP06(2015)068
arXiv:1501.03734
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9.

A stochastic method for computing hadronic matrix elements
/ Alexandrou, Constantia ; Constantinou, Martha ; Dinter, Simon ; Drach, Vincent ; et al
We present a stochastic method for the calculation of baryon threepoint functions that is more versatile than the typically used sequential method. [...]
Published in EPJC 74 (2014) 2692
10.1140/epjc/s1005201326923
Fulltext: XML PDF (PDFA);
