Results 101 to 110 of about 903,040 (213)

Improved parton distribution functions at the physical pion mass [PDF]

open access: yesPhysical Review D, 2017
We present the first lattice results on isovector unpolarized and longitudinally polarized parton distribution functions (PDFs) at physical pion mass. The PDFs are obtained using the large-momentum effective field theory (LaMET) framework where the full ...
Huey-Wen Lin   +3 more
semanticscholar   +1 more source

Three Decades of Soil N2O Research—Insights and Gaps

open access: yesGlobal Change Biology, Volume 32, Issue 8, August 2026.
Progress in N2O Research and Key Breakthroughs and Transitions from 1990 to 2025 across three domains: (A) process understanding, (B) microbial ecology, and (C) modelling of soil N2O emissions. ABSTRACT Nitrous oxide (N2O) is a potent greenhouse gas (GHG) whose atmospheric concentration continues to rise, largely driven by nitrogen (N) inputs to ...
Klaus Butterbach‐Bahl   +5 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

Gluon Quasi-Parton-Distribution Functions from Lattice QCD. [PDF]

open access: yesPhysical Review Letters, 2018
We present the first attempt to access the x dependence of the gluon unpolarized parton-distribution function (PDF), based on lattice simulations using the large-momentum effective theory approach.
Z. Fan   +4 more
semanticscholar   +1 more source

Global Patterns and Drivers of Climate Vulnerability in Sharks and Rays: A Reassessment Using the IRACC Framework

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 7, July 2026.
ABSTRACT Climate vulnerability in sharks and rays is unevenly distributed across habitats and ecological groups, reflecting differences in exposure pathways and biological constraints. Using an updated application of the Integrated Risk Assessment for Climate Change (IRACC) framework, we conducted a global reassessment of climate vulnerability for 95 ...
Ava Graham, Daniel M. Moore
wiley   +1 more source

Parton distribution functions from reduced Ioffe-time distributions [PDF]

open access: yes, 2018
We show that the correct way to extract parton distribution functions from the reduced Ioffe-time distribution, a ratio of the Ioffe-time distribution for a moving hadron and a hadron at rest, is through a factorization formula. This factorization exists
Jian-Hui Zhang   +2 more
semanticscholar   +1 more source

Parton distribution functions and their generalizations

open access: yes
This article is an introduction to parton distribution functions and their generalizations which describe the quark and gluon structure of hadrons, and can be measured in various high-energy scattering processes. We provide the theoretical background, highlight both historical and recent developments, explain the connections between the different ...
Lorcé, Cédric   +3 more
openaire   +2 more sources

A Novel Sequential Monte Carlo Algorithm for Parameter Estimation in Eco‐Hydrological Models

open access: yesWater Resources Research, Volume 62, Issue 7, July 2026.
Abstract Bayesian inference offers a flexible framework for parameter estimation and uncertainty quantification in eco‐hydrological models. However, simultaneously achieving robust posterior exploration and high computational efficiency for multimodal, high‐dimensional, and computationally intensive targets remains challenging for the widely used ...
Cong Xu   +4 more
wiley   +1 more source

The Price Gap in Agriculture‐Based Greenhouse Gas Offset Markets

open access: yesAustralian Journal of Agricultural and Resource Economics, Volume 70, Issue 3, Page 610-624, July 2026.
ABSTRACT Today, there is a global effort to reduce greenhouse gas net emissions (GHGNE). For economic well‐being, it is important to identify low‐cost means of net emission offsets. Agriculture and forestry have received considerable attention as a means of supplying emissions offsets, as they contribute nearly 20% of global emissions.
Jingyi W. Liu   +2 more
wiley   +1 more source

Intrinsic bottom and its impact on heavy new physics at the LHC

open access: yesEPJ Web of Conferences, 2016
Heavy quark parton distribution functions (PDFs) play an important role in several Standard Model and New Physics processes. Most analyses rely on the assumption that the charm and bottom PDFs are generated perturbatively by gluon splitting and do not ...
Lyonnet Florian
doaj   +1 more source

Home - About - Disclaimer - Privacy