Results 31 to 40 of about 73,606 (214)
Parton Distributions in the Virtual Photon Target and Factorization Scheme Dependence [PDF]
, 2000 We investigate parton distributions in the virtual photon target, both polarized and unpolarized, up to the next-leading order (NLO) in QCD. Parton distributions can be predicted completely up to NLO, but they are factorization-scheme-dependent.
Ball +17 more
core +3 more sources
GENERALIZED PARTON DISTRIBUTIONS AND DISTRIBUTION OF PARTONS IN THE TRANSVERSE PLANE [PDF]
Lepton Scattering, Hadrons and QCD, 2001 invited talk at `Workshop on Lepton Scattering, Hadrons and QCD', Adelaide, March 26 - April 6, 2001, 8 pages, sprocl ...
openaire +2 more sources
Polarized Parton Distributions in the Photon and Factorization Scheme Dependence [PDF]
, 1999 Spin-dependent parton distributions in the polarized virtual photon are investigated in QCD up to the next-to-leading order (NLO). In the case $\Lambda^2 \ll P^2 \ll Q^2$, where $-Q^2$ ($-P^2$) is the mass squared of the probe (target) photon, parton ...
Ball +21 more
core +4 more sources
The multidimensional nucleon structure
EPJ Web of Conferences, 2016 We discuss different kinds of parton distributions, which allow one to obtain a multidimensional picture of the internal structure of the nucleon.
Pasquini Barbara, Lorcé Cédric
doaj +1 more source
Implication of the overlap representation for modelling generalized parton distributions [PDF]
, 2001 Based on a field theoretically inspired model of light-cone wave functions, we derive valence-like generalized parton distributions and their double distributions from the wave function overlap in the parton number conserved s-channel.
A Bogicevic +27 more
core +2 more sources
Parton distribution functions [PDF]
Nuclear Physics B - Proceedings Supplements, 1997 Parton distribution functions give the probability to find partons (quarks and gluons) in a hadron as a function of the fraction x of the proton's momentum carried by the parton. They are conventionally defined in terms of matrix elements of certain operators.
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Generalized Parton Distributions in the Deuteron [PDF]
Physical Review Letters, 2001 We introduce generalized quark and gluon distributions in the deuteron, which can be measured in exclusive processes like deeply virtual Compton scattering and meson electroproduction. We discuss the basic properties of these distributions, and point out how they probe the interplay of nucleon and parton degrees of freedom in the deuteron wave function.
Berger, Edgar R. +3 more
openaire +4 more sources
Sum rule improved double parton distributions in position space
European Physical Journal C: Particles and Fields, 2020 Models for double parton distributions that are realistic and consistent with theoretical constraints are crucial for a reliable description of double parton scattering.
M. Diehl +4 more
doaj +1 more source
PARTON DISTRIBUTIONS – DIS06 [PDF]
Deep Inelastic Scattering DIS 2006, 2007 8 pages, 7 figures included as .ps or .eps files.
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Exclusive double quarkonium production and generalized TMDs of gluons
Physics Letters B, 2022 Being the “mother distributions” of all types of two-parton correlation functions, generalized transverse momentum dependent parton distributions (GTMDs) have attracted a lot of attention over the last years.
Shohini Bhattacharya +4 more
doaj +1 more source