Results 21 to 30 of about 6,781 (182)
Nuclear Physics B - Proceedings Supplements, 1997 Adapted from talks at XXVIII International Conference on High Energy Physics, Warsaw, July 1996 and at QCD Euroconference 96, Montpellier, July 1996. 13 pages with 11 figures. Figure 5 has some defective postscript code that may confuse ghostview, but it prints correctly.
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Calculations with off-shell matrix elements, TMD parton densities and TMD parton showers
European Physical Journal C: Particles and Fields, 2018 A new calculation using off-shell matrix elements with TMD parton densities supplemented with a newly developed initial state TMD parton shower is described.
Marcin Bury +5 more
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Physics Letters B, 1979 Abstract We formulate an evolution equation for the generating functional of parton distributions. It permits a detailed study of the branching process. Several numerical examples are given, and the relevance for jet phenomenology discussed.
CVITANOVIC P, HOYER P, KONISHI, KENICHI
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Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models
Physics Letters B, 2016 We trace the development of azimuthal anisotropy (vn, n=2,3) via parton–parton collision history in two transport models. The parton vn is studied as a function of the number of collisions of each parton in Au + Au and d+Au collisions at sNN=200 GeV.
Liang He +5 more
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Combining single and double parton scatterings in a parton shower [PDF]
Journal of High Energy Physics, 2020 Abstract Double parton scattering (DPS) processes in which there is a perturbative “1 → 2” splitting in both protons overlap with loop corrections to single parton scattering (SPS). Any fundamental theoretical treatment of DPS needs to address this double-counting issue.
Cabouat, Baptiste, Gaunt, Jonathan R.
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Generalized Parton Distributions [PDF]
26th Annual Hampton University Graduate Studies Program, Jefferson Lab, May 30, 2011, 2000 Applications of perturbative QCD to deeply virtual Compton scattering and hard exclusive electroproduction processes require a generalization of the usual parton distributions for the case when long-distance information is accumulated in nondiagonal matrix elements of quark and gluon light-cone operators.
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Double parton distributions out of bounds in colour space
European Physical Journal C: Particles and Fields, 2021 We investigate the positivity of double parton distributions with a non-trivial dependence on the parton colour. It turns out that positivity is not preserved by leading-order evolution from lower to higher scales, in contrast to the case in which parton
M. Diehl +3 more
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Polarized parton distributions [PDF]
Physical Review D, 1995 13 pages and 7 figures (not included, available upon request DEFLO@venus.fisica.edu.ar)
de Florian, D. +4 more
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Double parton distributions in the pion from lattice QCD
Journal of High Energy Physics, 2021 We perform a lattice study of double parton distributions in the pion, using the relationship between their Mellin moments and pion matrix elements of two local currents. A good statistical signal is obtained for almost all relevant Wick contractions. We
Gunnar S. Bali +6 more
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Collinear matching for next-to-leading power transverse-momentum distributions
Physics Letters B, 2023 Phenomenological studies of transverse momentum dependent (TMD) parton distributions rely on the expansion in small values of the transverse separation of fields, where TMD parton distributions match onto collinear parton distribution functions.
Simone Rodini +2 more
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