Results 31 to 40 of about 4,122 (216)
AIP Conference Proceedings, 1982 The discussion includes general properties of QCD perturbation expansion, onia decays, Drell-Yan, higher twist, and some miscellaneous comments about .cap alpha./sub s/. 45 references. (GHT)
openaire +3 more sources
Master integrals for two-loop QCD corrections to quark quasi PDFs
Journal of High Energy Physics, 2020 We compute the master integrals for the two-loop QCD corrections to quark quasi parton distribution functions (PDFs) in the large momentum effective theory (LaMET). With a proper canonical basis, we derive the analytical results for the three families of
Long-Bin Chen, Wei Wang, Ruilin Zhu
doaj +1 more source
The two-loop perturbative correction to the (g − 2) μ HLbL at short distances
Journal of High Energy Physics, 2021 The short-distance behaviour of the hadronic light-by-light (HLbL) contribution to (g − 2) μ has recently been studied by means of an operator product expansion in a background electromagnetic field.
Johan Bijnens +3 more
doaj +1 more source
Perturbative QCD and tau decay [PDF]
Nuclear Physics B - Proceedings Supplements, 1997 Sufficiently inclusive observables in the decay of the tau lepton can be calculated using the methods of perturbative QCD. These include the asymmetry parameter $A_ $ that determines that angular distribution of the total hadron momentum in the decay of a polarized tau.
openaire +2 more sources
Connecting the hadron mass scale to the fundamental mass scale of quantum chromodynamics
Physics Letters B, 2015 Establishing an explicit connection between the long distance physics of confinement and the dynamical interactions of quarks and gluons at short distances has been a long-sought goal of quantum chromodynamics.
A. Deur, S.J. Brodsky, G.F. de Teramond
doaj +1 more source
Physics Letters B, 2023 While perturbative QCD is sufficient for understanding the color, mass and energy dependences of parton energy loss and jet quenching at large transverse momentum in heavy-ion collisions, a simultaneous description of heavy flavor nuclear modification ...
Wen-Jing Xing +2 more
doaj +1 more source
Non-perturbative to perturbative QCD via the FFBRST
European Physical Journal C: Particles and Fields, 2018 Recently a new type of quadratic gauge was introduced in QCD in which the degrees of freedom are suggestive of a phase of abelian dominance. In its simplest form it is also free of Gribov ambiguity.
Haresh Raval, Bhabani Prasad Mandal
doaj +1 more source
Topics in non-perturbative QCD [PDF]
Czechoslovak Journal of Physics, 2001 23 pages,6figures.Lectures delivered at the Czech Summer School,Prague Aug28-Sept1st 2000,to appear in Czech Journal of Physics Feb ...
openaire +2 more sources
BASICS OF QCD PERTURBATION THEORY [PDF]
Flavor Physics for the Millennium, 2001 Lectures at the SLAC Summer Institute, August 1996.
openaire +2 more sources
THE TRANSITION BETWEEN PERTURBATIVE AND NON-PERTURBATIVE QCD [PDF]
Quark-Hadron Duality and the Transition to PQCD, 2006 We study both polarized and unpolarized proton structure functions in the kinematical region of large Bjorken x and four-momentum transfer of few GeV^2. In this region the phenomenon of parton-hadron duality takes place between the smooth continuation of the deep inelastic scattering curve and the average of the nucleon resonances.
Fantoni, A., Liuti, S.
openaire +2 more sources