Results 1 to 10 of about 73,038 (193)

Nuclear parton distributions [PDF]

EPJ Web of Conferences, 2017
We review a microscopic model of the nuclear parton distribution functions, which accounts for a number of nuclear effects including Fermi motion and nuclear binding, nuclear meson-exchange currents, off-shell corrections to bound nucleon distributions ...
Kulagin S. A.
doaj   +4 more sources

Parton Distributions [PDF]

International Journal of Modern Physics A, 2003
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.
Abe F., Adloff C., Breitweg J., Pumplin J., R. S. THORNE, Thorne R. S., van Neerven W. L.   +6 more
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Evolution and interpolation of double parton distributions using Chebyshev grids [PDF]

European Physical Journal C: Particles and Fields, 2023
Double parton distributions are the nonperturbative ingredients needed for computing double parton scattering processes in hadron–hadron collisions. They describe a variety of correlations between two partons in a hadron and depend on a large number of ...
Markus Diehl, Riccardo Nagar, Peter Plößl, Frank J. Tackmann   +3 more
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Nonforward Parton Distributions [PDF]

Physical Review D, 1997
Applications of perturbative QCD to deeply virtual Compton scattering and hard exclusive electroproduction processes require a generalization of usual parton distributions for the case when long-distance information is accumulated in nonforward matrix ...
A. Duncan, A. H. Mueller, A. V. Efremov, A. V. Efremov, A. V. Efremov, A. V. Efremov, A. V. Efremov, A. V. Efremov, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, D. Amati, D. J. Gross, D. Müller, G. Altarelli, G. P. Korchemsky, G. R. Farrar, H. D. Politzer, H. Georgi, I. Halperin, I. I. Balitsky, J. Bartels, J. Blumlein, J. C. Collins, J. C. Collins, J. C. Collins, J. C. Collins, J. D. Bjorken, L. L. Frankfurt, L. V. Gribov, M. G. Ryskin, N. Christ, N. N. Bogolyubov, O. I. Zavialov, P. Hoodbhoy, P. Jain, R. K. Ellis, R. K. Ellis, R. L. Jaffe, R. P. Feynman, S. J. Brodsky, S. J. Brodsky, S. J. Brodsky, S. J. Brodsky, S. Libby, S. N. Nikolaev, S. V. Ivanov, S. V. Mikhailov, T. Appelquist, Th. Braunschweig, V. L. Chernyak, V. L. Chernyak, V. N. Gribov, V. V. Barakhovskii, X. Ji, X. Ji, X. Ji, Yu. L. Dokshitser   +61 more
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Parton interpretation and twist-4 parton distributions

Physics Letters B, 2021
Through explicit examples we show that twist-4 parton distributions have no parton interpretation in the sense that parton or partons inside a hadron can carry the momentum fraction x of the hadron with x>1 or x1.
J.P. Ma, Z.Y. Pang, G.P. Zhang
doaj   +3 more sources

Asymmetric Parton Distributions [PDF]

AIP Conference Proceedings, 1997
Applications of perturbative QCD to hard exclusive electroproduction processes in the Bjorken limit at small invariant momentum transfer t bring in a new type of parton distributions which have hybrid properties, resembling both the parton distribution ...
Radyushkin, Anatoly V.
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Parton Distributions [PDF]

AIP Conference Proceedings, 2005
I present an overview of some current topics in the measurement of Parton Distribution Functions.Comment: 13 pages, 9 figures. Plenary talk presented at the XIII International Workshop on Deep Inelastic Scattering (DIS 2005), Madison WI USA, April 27-
Pumplin, Jon
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Evolution of Parton Distributions [PDF]

Nuclear Physics B, 1997
I present a highly efficient method for evolving parton distributions in perturbative QCD. The method allows evolving the parton distribution functions according to any of the commonly-used truncations of the evolution equations (which differ in their ...
Altarelli, Blümlein, Caswell, David A. Kosower, Davis, Diemoz, Dokshitser, Floratos, Furmanski, Giele, Glück, Glück, Gross, Jones, Lai, Lai, Martin, Martin, Martin, Ouraou, Politzer, Sterman, Virchaux   +22 more
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Off-Forward Parton Distributions [PDF]

Journal of Physics G: Nuclear and Particle Physics, 1998
Recently, there have been some interesting developments involving off-forward parton distributions of the nucleon, deeply virtual Compton scattering, and hard diffractive vector-meson production.
, , Abramowicz H, Barone V, Bartels J, Belitsky A V, Braunschweig I, Brodsky S, Brodsky S J, Chen Z, Collins J C, Collins J C, Crittenden J, Dittes F-M, Dokshitser Y L, Efremov A V, Efremov A V, Feynman R P, Geyer B, Glück M, Golec-Biernat K, Gribov V N, Guichon P A M, Göckeler M, Harindranath A, Hoodbhoy P, Hoodbhoy P, Hägler P, Itzykson C, Jain P, Ji X, Ji X, Ji X, Ji X, Makeenko Y M, Mankiewicz L, Mankiewicz L, Mankiewicz L, Martin A, Martin A D, Müller D, Müller D, Pire B, Radyushkin A V, Ryskin M G, See for instance Creutz M, Teryaev O V, Watanabe K, Xiangdong Ji   +48 more
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Unintegrated generalised parton distributions [PDF]

Physical Review D, 2001
We show how the generalised (or skewed) parton distributions of the proton, H(x, xi; k_t^2, mu^2), unintegrated over the partonic transverse momenta, can be calculated from the known conventional parton distributions, q(x, mu^2) and g(x, mu^2), for small
Martin, A. D., Ryskin, M. G.
core   +5 more sources