Results 91 to 100 of about 6,781 (182)

Evolution of colour correlated double parton distributions: a quantitative study

Journal of High Energy Physics
Double parton distributions satisfy the same evolution equations as ordinary single-parton densities, provided that the colours of the two partons are uncorrelated.
Markus Diehl, Florian Fabry, Peter Plößl   +2 more
doaj   +1 more source

Tensor-polarized parton density in the N→Δ transition

Physics Letters B
The generalized parton distributions for transitions between baryon states with different masses have a forward limit in which they behave as parton densities (light-front momentum transfer Δ+,ΔT=0, energy transfer Δ−≠0).
June-Young Kim, Christian Weiss
doaj   +1 more source

Hadron structure beyond collinear level and precision DIS measurements

EPJ Web of Conferences, 2015
General formulations of QCD factorization for hadronic collisions extend the notion of ordinary parton distributions to transverse-momentum dependent (TMD) parton density and parton decay functions.
Hautmann F, Jung H
doaj   +1 more source

Production of associated χb and open charm at the LHC

Physics Letters B, 2016
In the present paper we study the production of χb+cc¯ at the LHC within single parton scattering approach. A special attention is paid to the feed-down from χb states to the associated ϒ+cc¯ production, which was recently studied by the LHCb.
A.K. Likhoded, A.V. Luchinsky, S.V. Poslavsky   +2 more
doaj   +1 more source

Parton Momentum Distribution at the Moment of Jet-Parton Collisions

Chinese Physics Letters, 2008
4 pages, 4 figures, in ...
openaire   +2 more sources

A quantitative study of two-loop splitting in double parton distributions

Journal of High Energy Physics
Double parton distributions at small distances between the two partons are dominated by a mechanism in which the two observed partons originate from the splitting of a single parton.
Markus Diehl, Peter Plößl
doaj   +1 more source

Off-shell amplitudes and four-jet production in kT-factorization

EPJ Web of Conferences, 2016
We perform a study of both Single and Double Parton Scattering contributions to the inclusive 4-jet production in the kT -factorization framework at Leading Order and √s = 7 TeV and 13 TeV.
Serino Mirko
doaj   +1 more source

Center-of-mass energy dependence of intrinsic- $$k_{\textrm{T}}$$ k T distributions obtained from Drell–Yan production

European Physical Journal C: Particles and Fields
The internal motion of partons inside hadrons has been studied through its impact on very low transverse momentum spectra of Drell–Yan (DY) pairs created in hadron-hadron collisions.
I. Bubanja, H. Jung, A. Lelek, N. Raičević, S. Taheri Monfared   +4 more
doaj   +1 more source

On parton number fluctuations

, 2014
Parton evolution with the rapidity essentially is a branching diffusion process. We describe the fluctuations of the density of partons which affect the properties of QCD scattering amplitudes at moderately high energies. We arrive at different functional forms of the latter in the case of dipole-nucleus and dipole-dipole scattering.
openaire   +3 more sources

Extracting Mellin moments of double parton distributions from lattice data

Journal of High Energy Physics
Reconstructing Mellin moments of double parton distributions from calculations on a Euclidean lattice requires taking an integral over a variable that may be regarded as a Ioffe time.
Markus Diehl, Oskar Grocholski, Daniel Reitinger, Andreas Schäfer, Christian Zimmermann   +4 more
doaj   +1 more source