SCOAP3 Repository 10 records found  Search took 0.02 seconds. 
1. Strong Running Coupling from the Gauge Sector of Domain Wall Lattice QCD with Physical Quark Masses / Zafeiropoulos, S. ; Boucaud, Ph. ; De Soto, F. ; Rodríguez-Quintero, J. ; et al
We report on the first computation of the strong running coupling at the physical point (physical pion mass) from the ghost-gluon vertex, computed from lattice simulations with three flavors of domain wall fermions. [...]
Published in Physical Review Letters 122 (2019) 10.1103/PhysRevLett.122.162002 arXiv:1902.08148
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2. Reconstructing parton distribution functions from Ioffe time data: from Bayesian methods to neural networks / Karpie, Joseph ; Orginos, Kostas ; Rothkopf, Alexander ; Zafeiropoulos, Savvas
The computation of the parton distribution functions (PDF) or distribution amplitudes (DA) of hadrons from first principles lattice QCD constitutes a central open problem in high energy nuclear physics. [...]
Published in JHEP 1904 (2019) 057 10.1007/JHEP04(2019)057 arXiv:1901.05408
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3. From the colour glass condensate to filamentation: systematics of classical Yang–Mills theory / Philipsen, Owe ; Wagenbach, Björn ; Zafeiropoulos, Savvas
The non-equilibrium early time evolution of an ultra-relativistic heavy ion collision is often described by classical lattice Yang–Mills theory, starting from the colour glass condensate (CGC) effective theory with an anisotropic energy momentum tensor as initial condition. [...]
Published in EPJC 79 (2019) 286 10.1140/epjc/s10052-019-6790-8
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4. x and x2 of the pion PDF from lattice QCD with Nf=2+1+1 dynamical quark flavors / Oehm, M. ; Alexandrou, C. ; Constantinou, M. ; Jansen, K. ; et al
Using Nf=2+1+1 lattice QCD, we determine the fermionic connected contributions to the first and second moments of the pion parton distribution function. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.014508 arXiv:1810.09743
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5. Discretization effects on renormalized gauge-field Green’s functions, scale setting, and the gluon mass / Boucaud, Ph. ; De Soto, F. ; Raya, K. ; Rodríguez-Quintero, J. ; et al
The SU(3) gauge-field propagators computed from the lattice have been exhaustively used in the investigation of the low-momentum dynamics of QCD, in a judicious interplay with results from other nonperturbative approaches, and for the extraction of fundamental parameters of QCD like ΛMS¯ as well. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.114515 arXiv:1809.05776
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6. Moments of Ioffe time parton distribution functions from non-local matrix elements / Karpie, Joseph ; Orginos, Kostas ; Zafeiropoulos, Savvas
We examine the relation of moments of parton distribution functions to matrix elements of non-local operators computed in lattice quantum chromodynamics. [...]
Published in JHEP 1811 (2018) 178 10.1007/JHEP11(2018)178 arXiv:1807.10933
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7. Complex Langevin simulation of a random matrix model at nonzero chemical potential / Bloch, J. ; Glesaaen, J. ; Verbaarschot, J. ; Zafeiropoulos, S.
In this paper we test the complex Langevin algorithm for numerical simulations of a random matrix model of QCD with a first order phase transition to a phase of finite baryon density. [...]
Published in JHEP 1803 (2018) 015 10.1007/JHEP03(2018)015 arXiv:1712.07514
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8. Instanton liquid properties from lattice QCD / Athenodorou, A. ; Boucaud, Ph. ; Soto, F. ; Rodríguez-Quintero, J. ; et al
We examined the instanton contribution to the QCD configurations generated from lattice QCD for N F = 0, N F = 2 + 1 and N F = 2 + 1 + 1 dynamical quark flavors from two different and complementary approaches. [...]
Published in JHEP 1802 (2018) 140 10.1007/JHEP02(2018)140 arXiv:1801.10155
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9. On the zero crossing of the three-gluon vertex / Athenodorou, A. ; Binosi, D. ; Boucaud, Ph. ; De Soto, F. ; et al
We report on new results on the infrared behavior of the three-gluon vertex in quenched Quantum Chromodynamics, obtained from large-volume lattice simulations. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.08.065
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10. Gluon Green functions free of quantum fluctuations / Athenodorou, A. ; Boucaud, Ph. ; De Soto, F. ; Rodríguez-Quintero, J. ; et al
This letter reports on how the Wilson flow technique can efficaciously kill the short-distance quantum fluctuations of 2- and 3-gluon Green functions, remove the ΛQCD scale and destroy the transition from the confining non-perturbative to the asymptotically-free perturbative sector. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.07.007
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3 Zafeiropoulos, Savvas
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