Valence quark, sea, and gluon content of the pion from the parton distribution functions and the electromagnetic form factor [PDF]
Physical Review D, 2023 We present a light-front model calculation of the pion parton distribution functions (PDFs) and the pion electromagnetic form factor. The pion state is modeled in terms of light-front wave functions (LFWFs) for the $q\bar q$, $q\bar q q\bar q$, $q\bar q ...
B. Pasquini, S. Rodini, Simone Venturini
semanticscholar +1 more source
Approximate N$$^{3}$$LO parton distribution functions with theoretical uncertainties: MSHT20aN$$^3$$LO PDFs [PDF]
The European Physical Journal C, 2022 We present the first global analysis of parton distribution functions (PDFs) at approximate N$$^{3}$$ 3 LO in the strong coupling constant $$\alpha _{s}$$ α s , extending beyond the current highest NNLO achieved in PDF fits.
J. McGowan +3 more
semanticscholar +1 more source
Moments of parton distribution functions of any order from lattice QCD [PDF]
Physical Review D, 2023 We describe a procedure to determine moments of parton distribution functions of any order in lattice quantum chromodynamics (QCD). The procedure is based on the gradient flow for fermion and gauge fields.
A. Shindler
semanticscholar +1 more source
Flavor decomposition of the nucleon unpolarized, helicity, and transversity parton distribution functions from lattice QCD simulations [PDF]
Physical Review D, 2021 We present results on the quark unpolarized, helicity and transversity parton distributions functions of the nucleon. We use the quasi-parton distribution approach within the lattice QCD framework and perform the computation using an ensemble of twisted ...
C. Alexandrou +4 more
semanticscholar +1 more source
Pion generalized parton distributions and light-front wave functions in the Nambu–Jona-Lasinio model
Nuclear Physics B, 2021 Pion generalized parton distributions and light-front wave functions are investigated in the framework of Nambu–Jona-Lasinio model. The properties of pion generalized parton distributions and light-front wave functions are examined separately. Proceeding
Jin-Li Zhang +3 more
doaj +1 more source
Determination of the parton distribution functions of the proton using diverse ATLAS data from $pp$ collisions at $\sqrt{s} = 7$, 8 and 13 TeV [PDF]
, 2021 This paper presents an analysis at next-to-next-to-leading order in the theory of quantum chromodynamics for the determination of a new set of proton parton distribution functions using diverse measurements in $pp$ collisions at $\sqrt{s} = 7$, 8 and 13 ...
Atlas Collaboration
semanticscholar +1 more source
High energy leptonic collisions and electroweak parton distribution functions [PDF]
Physical Review D, 2020 In high-energy leptonic collisions well above the electroweak scale, the collinear splitting mechanism of the electroweak gauge bosons becomes the dominant phenomena via the initial state radiation and the final state showering.
T. Han, Yang Ma, K. Xie
semanticscholar +1 more source
An analysis of polarized parton distribution functions with nonlinear QCD evolution equations
Nuclear Physics B, 2022 We present the polarized parton distribution functions from a QCD analysis of the worldwide polarized deep inelastic scattering data, based on the dynamical parton distribution model.
Chengdong Han +3 more
doaj +1 more source
Parton distribution functions of the charged pion within the xFitter framework [PDF]
Physical Review D, 2020 We present the first open-source analysis of parton distribution functions (PDFs) of charged pions using xFitter, an open-source QCD fit framework to facilitate PDF extraction and analyses.
I. Novikov +11 more
semanticscholar +1 more source
New parton distribution functions from a global analysis of quantum chromodynamics [PDF]
, 2015 Here, we present new parton distribution functions (PDFs) up to next-to-next-to-leading order (NNLO) from the CTEQ-TEA global analysis of quantum chromodynamics.
S. Dulat +10 more
semanticscholar +1 more source