Results 61 to 70 of about 3,464 (222)

Quasi-parton distribution functions, momentum distributions, and pseudo-parton distribution functions

open access: yesPhysical Review D, 2017
We show that quasi-parton distribution functions (quasi-PDFs) may be treated as hybrids of PDFs and primordial rest-frame momentum distributions of partons. This results in a complicated convolution nature of quasi-PDFs that necessitates using large ${p}_{3}\ensuremath{\gtrsim}3\text{ }\text{ }\mathrm{GeV}$ momenta to get reasonably close to the PDF ...
openaire   +3 more sources

Dynamically generated parton distribution functions and their properties [PDF]

open access: yesPhysical Review D, 1996
The idea of ``dynamically'' generated parton distribution functions, based on regular initial conditions at low momentum scale, is reanalyzed with particular emphasize paid to its compatibility with the factorization mechanism. Basic consequences of this approach are discussed and compared to those of the conventional approach, employing singular ...
openaire   +3 more sources

Linking Plant and Microbial Traits to Soil Carbon for Reliable and Resilient Bioenergy Systems

open access: yesGCB Bioenergy, Volume 18, Issue 7, July 2026.
Plant–microbe–soil interactions supporting productivity and soil carbon storage in bioenergy systems. Plants supply organic inputs that sustain microbial communities driving nutrient cycling, carbon stabilization, and soil aggregation. These interactions enhance soil structure and nutrient retention, supporting both biomass productivity and broader ...
Aubrey K. Fine   +6 more
wiley   +1 more source

Double parton correlations in mesons within AdS/QCD soft-wall models: a first comparison with lattice data

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Double parton distribution functions (dPDFs), entering the double parton scattering (DPS) cross section, are unknown fundamental quantities encoding new interesting properties of hadrons. Here, the pion dPDFs are investigated within different holographic
Matteo Rinaldi
doaj   +1 more source

Hyperspectral Fingerprinting of Dune Sediments Across the Arabian Peninsula: Insights Into Sediment Provenance and Transport Pathways From NASA's EMIT Data

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The Arabian Peninsula encompasses one of the world's most extensive aeolian systems, yet the provenance and transport history of its dune sediments are not well understood. Using hyperspectral data from NASA's Earth Surface Mineral Dust Source Investigation (EMIT), we mapped mineral compositions and abundance patterns across dune fields and ...
Ahmed Alshakr   +8 more
wiley   +1 more source

Structure functions and parton distributions

open access: yesPramana, 1995
We review recent developments in the determination of parton densities from deep inelastic and related data. We show how the asymmetries observed in theW ± rapidity distributions and inpp/pn Drell-Yan production further constrain the partons at moderatex.
A.D. MARTIN, R.G. ROBERTS, W.J. STIRLING
openaire   +3 more sources

New insights from the flavor dependence of quark transverse momentum distributions in the pion

open access: yesPhysics Letters B
We update our previous extraction of transverse momentum distributions of unpolarized quarks in the pion by implementing a more comprehensive description of theoretical uncertainties and, for the first time, by exploring possible differences among quark ...
Lorenzo Rossi   +3 more
doaj   +1 more source

The Importance of Scale in the Future of Mangrove Blue Carbon Under Sea‐Level Rise

open access: yesEarth's Future, Volume 14, Issue 6, June 2026.
Abstract As efficient carbon sinks, mangrove forests are crucial for climate change mitigation. However, their vulnerability to sea‐level rise (SLR) and human activities influencing sediment supply introduces significant uncertainty regarding their future carbon storage capacity.
A. P. Iwantoro   +10 more
wiley   +1 more source

Structure functions and parton distributions [PDF]

open access: yesNuclear Physics A, 2003
Latex, 10 pages, to appear in the proceedings of ...
openaire   +2 more sources

Impacts of Precipitation Variability on Carbon Flux Dynamics of Global Semi‐Arid Savannas

open access: yesGlobal Change Biology, Volume 32, Issue 6, June 2026.
Semi‐arid ecosystems contribute most to the variability of the land carbon sink. They are water‐limited and therefore increased precipitation variability due to climate change has strong effects on their carbon cycle. We investigate the effects of precipitation amount, frequency, intensity and dry spell length on carbon fluxes of global semi‐arid ...
Laura Nadolski   +9 more
wiley   +1 more source

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