Results 11 to 20 of about 8,744 (213)

PARTONS: PARtonic Tomography Of Nucleon Software [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We describe the architecture and functionalities of a C++ software framework, coined PARTONS, dedicated to the phenomenology of Generalized Parton Distributions.
B. Berthou   +10 more
doaj   +10 more sources

PARTON DISTRIBUTIONS [PDF]

open access: yesInternational Journal of Modern Physics A, 2004
I discuss our current understanding of parton distributions. I begin with the underlying theoretical framework, and the way in which different data sets constrain different partons, highlighting recent developments. The methods of examining the uncertainties on the distributions and those physical quantities dependent on them is analyzed.
Watt, Graeme
openaire   +5 more sources

MRST partons and uncertainties. [PDF]

open access: yes, 2010
We discuss uncertainties in the extraction of parton distributions from global analyses of DIS and related data. We present conservative sets of partons, at both NLO and NNLO, which are stable to x,Q2,W2 cuts on the data. We give the corresponding values

core   +9 more sources

Parton interpretation and twist-4 parton distributions

open access: yesPhysics Letters B, 2021
Published ...
Ma, J.P., Pang, Z.Y., Zhang, G.P.
openaire   +3 more sources

PARTONIC INTERPRETATION OF GENERALIZED PARTON DISTRIBUTIONS [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2011
Dispersion relations have been applied to hard exclusive processes suggesting that generalized parton distributions can be fully determined from their values on a kinematical ridge. We show significant pitfalls associated that vitiate this approach. We suggest an improved treatment of this assumption.
Goldstein, Gary R., Liuti, Simonetta
openaire   +2 more sources

Parton Correlations in Double Parton Scattering [PDF]

open access: yes, 2018
Double parton scattering events are directly sensitive to the correlations between two partons inside a proton and can answer fundamental questions on the connections between the proton constituents. In this chapter, the different types of possible correlations, our present knowledge of them, and the processes where they are likely to be important, are
Kasemets, T., Scopetta, S.
openaire   +4 more sources

Multiple parton scattering in nuclei: parton energy loss [PDF]

open access: yesNuclear Physics A, 2001
Final version published in Nucl. Phys. A.
Wang, Xin-Nian, Guo, Xiao-feng
openaire   +3 more sources

Soft radiation in parton-parton scattering

open access: yesNuclear Physics B, 1987
Abstract We investigate the pattern of soft gluon radiation associated with parton-parton scattering by explicit evaluation of the 2 → 3 scattering processes in the soft limit. After azimuthal averaging, the results provide the initial conditions for an angular-ordering approximation to coherent multiple soft gluon emission, which may be incorporated
R.K. Ellis, G. Marchesini, B.R. Webber
openaire   +2 more sources

Polarized parton distributions [PDF]

open access: yesPhysical Review D, 1995
13 pages and 7 figures (not included, available upon request DEFLO@venus.fisica.edu.ar)
de Florian, D.   +4 more
openaire   +3 more sources

On the Shape of Nucleons at High Energies

open access: yesParticles, 2021
A scenario of the evolution of the shape of nucleons with increasing energy is described in the framework of an extended parton model, which consistently takes into account the transverse motion of the partons.
Maksim L. Nekrasov
doaj   +1 more source

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