SCOAP3 Repository 7 records found  Search took 0.23 seconds. 
1. One-loop renormalization of staple-shaped operators in continuum and lattice regularizations / Constantinou, Martha ; Panagopoulos, Haralambos ; Spanoudes, Gregoris
In this paper we present one-loop results for the renormalization of nonlocal quark bilinear operators, containing a staple-shaped Wilson line, in both continuum and lattice regularizations. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.074508
2. 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
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3. Light-Cone 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
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4. 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 spectral-projector method. [...]
Published in Phys. Rev. D 97 (2018) 10.1103/PhysRevD.97.074503 arXiv:1709.06596
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5. A complete non-perturbative renormalization prescription for quasi-PDFs / Alexandrou, Constantia ; Cichy, Krzysztof ; Constantinou, Martha ; Hadjiyiannakou, Kyriakos ; et al
In this work we present, for the first time, the non-perturbative renormalization for the unpolarized, helicity and transversity quasi-PDFs, in an RI′ scheme. [...]
Published in Nuclear Physics B (2017) 10.1016/j.nuclphysb.2017.08.012
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6. 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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7. 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 three-point functions that is more versatile than the typically used sequential method. [...]
Published in EPJC 74 (2014) 2692 10.1140/epjc/s10052-013-2692-3
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3 Constantinou, M.
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