Results 31 to 40 of about 140,588 (214)
The gluon structure of hadrons and nuclei from lattice QCD
EPJ Web of Conferences, 2018 I discuss recent lattice QCD studies of the gluon structure of hadrons and light nuclei. After very briefly highlighting new determinations of the gluon contributions to the nucleon’s momentum and spin, presented by several collaborations over the last ...
Shanahan Phiala
doaj +1 more source
The quark-gluon vertex and the QCD infrared dynamics
European Physical Journal C: Particles and Fields, 2019 The Dyson–Schwinger quark equation is solved for the quark-gluon vertex using the most recent lattice data available in the Landau gauge for the quark, gluon and ghost propagators, the full set of longitudinal tensor structures in the Ball-Chiu vertex ...
Orlando Oliveira +3 more
doaj +1 more source
On relevance of triple gluon fusion in $J/\psi$ hadroproduction [PDF]
, 2015 A contribution to $J/\psi$ hadroproduction is analyzed in which the meson production is mediated by three-gluon partonic state, with two gluons coming from the target and one gluon from the projectile.
Motyka, Leszek, Sadzikowski, Mariusz
core +3 more sources
The cross section for four-gluon production by gluon-gluon fusion
Nuclear Physics B, 1986 Abstract The cross section for two-gluon to four-gluon scattering is given in a form suitable for fast numerical calculations.
Stephen J. Parke, T.R. Taylor
openaire +1 more source
The quark - gluon medium [PDF]
Uspekhi Fizicheskih Nauk, 2010 Final version, to appear in Physics ...
Dremin, I. M., Leonidov, A. V.
openaire +2 more sources
On the power divergence in quasi gluon distribution function
Journal 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 +1 more source
Early thermalization of quark-gluon matter with the elastic scattering of ggq and ggqbar
, 2013 Elastic gluon-gluon-quark (gluon-gluon-antiquark) scattering is studied in perturbative QCD with 123 Feynman diagrams at the tree level. Individually squared amplitudes and interference terms of the Feynman diagrams are derived.
Shen, Zhen-Yu +3 more
core +1 more source
Gluon mass generation without seagull divergences [PDF]
, 2009 Dynamical gluon mass generation has been traditionally plagued with seagull divergences, and all regularization procedures proposed over the years yield finite but scheme-dependent gluon masses. In this work we show how such divergences can be eliminated
A. Cucchieri +10 more
core +2 more sources
Journal of Physics G: Nuclear and Particle Physics, 2007 Minor changes to text. New refs. included.
openaire +2 more sources
Neutralino annihilation into gluons [PDF]
Physical Review D, 1994 We present a complete calculation of the cross section for neutralino annihilation into the two-gluon final state. This channel can be quite important for the phenomenology of neutralino annihilation due to the well-known helicity suppression of neutralino annihilation into light quarks and leptons.
Drees, M. +3 more
openaire +3 more sources