Results 81 to 90 of about 76,116 (260)
On positivity of parton distributions [PDF]
, 1998 We discuss the bounds on polarized parton distributions which follow from their definition in terms of cross section asymmetries. We spell out how the bounds obtained in the naive parton model can be derived within perturbative QCD at leading order when ...
Altarelli, Guido +2 more
core +2 more sources
Modeling Crop‐Livestock Interactions in Semi‐Subsistence Economies
Agricultural Economics, Volume 57, Issue 1, January 2026.ABSTRACT Climate and weather shocks pose significant threats to crop and livestock systems, leading to economic losses and humanitarian crises. Utilizing a modeling framework that innovatively integrates the crop and livestock production systems in semi‐subsistence economies, this study examines the interactions and dynamic adjustments within these ...
Emerta Aragie, James Thurlow
wiley +1 more source
Double parton distributions in the pion in the Nambu–Jona-Lasinio model
Journal of High Energy Physics, 2019 Two-parton correlations in the pion, a non perturbative information encoded in double parton distribution functions, are investigated in the Nambu–Jona-Lasinio model.
Aurore Courtoy +2 more
doaj +1 more source
Journal of High Energy Physics, 2023 We revisit the next-to-leading order (NLO) perturbative QCD corrections for the deeply virtual meson production (DVMP) process, exploring its phenomenology both in isolation and in a multichannel fit combined with deeply virtual Compton scattering (DVCS).
Marija Čuić +3 more
doaj +1 more source
Parton distributions for LO generators [PDF]
, 2008 We present a study of the results obtained combining LO partonic matrix elements with either LO or NLO partons distributions. These are compared to the best prediction using NLO for both matrix elements and parton distributions.
Sherstnev, A, Thorne, RS
core +2 more sources
Life History and Smoltification Shape Genomic Signatures of Thermal Tolerance in Chinook Salmon
Molecular Ecology, Volume 35, Issue 1, January 2026.ABSTRACT Temperature is a key determinant of survival and distribution in ectothermic species, but how variation in thermal resilience is influenced by developmental transitions, life‐history strategies, and their interaction with population‐specific genomic variation is poorly understood.
David C. H. Metzger +3 more
wiley +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
Electromagnetic and gravitational local spatial densities for spin-1 systems
Journal of High Energy Physics, 2023 The matrix elements of the electromagnetic current and the energy-momentum tensor for sharply localized states of spin-1 systems are considered. Their interpretation as local spatial densities of various characteristics of the considered system is ...
J. Yu. Panteleeva +3 more
doaj +1 more source
Parton distributions in the virtual photon target up to NNLO in QCD [PDF]
, 2009 Parton distributions in the virtual photon target are investigated in perturbative QCD up to the next-to-next-to-leading order (NNLO). In the case $\Lambda^2 \ll P^2 \ll Q^2$, where $-Q^2$ ($-P^2$) is the mass squared of the probe (target) photon, parton
A. Vogt +53 more
core +1 more source
Agrosystems, Geosciences &Environment, Volume 8, Issue 4, December 2025.Abstract Organic amendments enhance soil quality in agroecosystems, although they may modify the dynamics of greenhouse gas (GHG) emissions, highlighting complex interactions between soil management and environmental sustainability. A field experiment was conducted in the semiarid region of Iran to evaluate the effects of barley residues (BR), sheep ...
Morad Mirzaei +9 more
wiley +1 more source