Results 1 to 10 of about 148,457 (165)

Three-point vertex functions in Yang-Mills Theory and QCD in Landau gauge

open access: yesEPJ Web of Conferences, 2017
Solutions for the three-gluon and quark-gluon vertices from Dyson-Schwinger equations and the three-particle irreducible formalism are discussed. Dynamical quarks (“unquenching”) change the three-gluon vertex via the quark-triangle diagrams which ...
Blum Adrian L.   +3 more
doaj   +2 more sources

On the power divergence in quasi gluon distribution function

open access: yesJournal of High Energy Physics, 2018
Recent perturbative calculation of quasi gluon distribution function at one-loop level shows the existence of extra linear ultraviolet divergences in the cut-off scheme.
Wei Wang, Shuai Zhao
doaj   +3 more sources

Positivity bounds on gluon TMDs for hadrons of spin ≤ 1

open access: yesJournal of High Energy Physics, 2017
We consider the transverse momentum dependent gluon distribution functions (called gluon TMDs) by studying the light-front gluon-gluon correlator, extending the results for unpolarized and vector polarized targets to also include tensor polarized targets
Sabrina Cotogno   +2 more
doaj   +3 more sources

Form factor decompositions of the QCD four - gluon vertex [PDF]

open access: diamondEPJ Web of Conferences, 2018
The Bern-Kosower formalism, originally developed around 1990 as a novel way of obtaining on-shell amplitudes in field theory as limits of string amplitudes, has recently been shown to be extremely effcient as a tool for obtaining form factor ...
Ahmadiniaz Naser, Schubert Christian
doaj   +2 more sources

Dynamical gluon mass in the instanton vacuum model

open access: yesPhysics Letters B, 2018
We consider the modifications of gluon properties in the instanton liquid model (ILM) for the QCD vacuum. Rescattering of gluons on instantons generates the dynamical momentum-dependent gluon mass Mg(q).
M. Musakhanov, O. Egamberdiev
doaj   +3 more sources

Discovery of the bound state of three gluons - odderon [PDF]

open access: yesЯдерна фізика та енергетика, 2021
The TOTEM collaboration at the Large Hadron Collider, together with the D0 collaboration at the Tevatron collider at Fermilab, have announced the discovery of the odderon – a bound state of three gluons that was predicted about 50 years ago.
V. E. Aushev
doaj   +1 more source

Position-space gluon propagator from quenched lattice QCD [PDF]

open access: yesEPJ Web of Conferences, 2022
We report novel lattice QCD results for the position-space gluon propagator in Landau gauge from quenched simulations. Using standard Wilson action, we computed gluon propagator in position space with a detailed treatment of hypercubic errors.
de Soto Feliciano
doaj   +1 more source

Baryon breakdown in black hole

open access: yesFrontiers in Physics, 2022
According to relativity theory, a black hole is a distinct region in spacetime; according to astronomical observations, it is a celestial body transforming matter into high-energy jets.
Lauri Lehmonen, Arto Annila
doaj   +1 more source

J-PARC Hadron Physics and Future Possibilities on Color Transparency

open access: yesPhysics, 2022
The Japan Proton Accelerator Research Complex (J-PARC) is a hadron-accelerator facility that aims to provide secondary beams of kaons, pions, neutrinos, muons, and others together with the primary proton beam for investigating a wide range of science ...
Shunzo Kumano
doaj   +1 more source

Neutron star characteristics from the neutron structure

open access: yesFrontiers in Physics, 2023
We draw insight into the neutron star structure and characteristics from the neutron structure. The eigenvectors of the special unitary group, SU(3), describing baryons, imply that neutron quarks reside on three faces of a tetrahedron.
Arto Annila
doaj   +1 more source

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