Results 51 to 60 of about 76,116 (260)

Kaon and pion parton distributions

European Physical Journal C: Particles and Fields, 2020
Beginning with results for the leading-twist two-particle distribution amplitudes of $$\pi $$ π - and K-mesons, each of which exhibits dilation driven by the mechanism responsible for the emergence of hadronic mass, we develop parameter-free predictions ...
Z.-F. Cui, M. Ding, F. Gao, K. Raya, D. Binosi, L. Chang, C. D. Roberts, J. Rodríguez-Quintero, S. M. Schmidt   +8 more
doaj   +1 more source

Parton distributions [PDF]

, 2004
I discuss our current understanding of parton distributions. I begin with the underlying theoretical framework, and the way in which different data sets constrain different partons, highlighting recent developments.
Dasu, S, Demina, R, Dobrescu, B, Harris, D, Thorne, RS   +4 more
core  

Polarized parton distribution functions reexamined [PDF]

Physical Review D, 1996
17 pages, 9 figures. Main changes: (i) all polarized parton distributions are parametrized and determined in the MS scheme, (ii) all figures are ...
Cheng, Hai-Yang, Liu, Hung Hsiang, Wu, Chung-Yi   +2 more
openaire   +3 more sources

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop, Jiwei Li, Daryl L. Moorhead, Sasha C. Reed, Katherine E. O. Todd‐Brown, Alexi C. Besser, Dellena Evelyn Bloom, Thomas C. Ingalls, Alejandro Cueva   +8 more
wiley   +1 more source

Parton Distributions

, 2009
We provide an assessment of the state of the art in various issues related to experimental measurements, phenomenological methods and theoretical results relevant for the determination of parton distribution functions (PDFs) and their uncertainties, with the specific aim of providing benchmarks of different existing approaches and results in view of ...
Dittmar, M., Forte, S., Glazov, A., Moch, S., Altarelli, G., Anderson, J., Ball, R. D., Beuf, G., Boonekamp, M., Burkhardt, H., Caola, F., Ciafaloni, M., Colferai, D., Cooper-Sarkar, A., de Roeck, A., Del Debbio, L., Feltesse, J., Gelis, F., Grebenyuk, J., Guffanti, A., Halyo, V., Latorre, J. I., Lendermann, V., Li, Gang, Motyka, L., Petersen, T., Piccione, A., Radescu, V., Rogal, M., Rojo, J., Royon, C., Salam, G. P., Salek, D., Stasto, A. M., Thorne, R. S., Ubiali, M., Vermaseren, J. A. M., Vogt, A., Watt, G., White, C. D.   +39 more
openaire   +4 more sources

Parton recombination effect in polarized parton distributions

, 2004
Parton recombination corrections to the standard spin-dependent Altarelli-Parisi evolution equation are considered in a nonlinear evolution equation. The properties of this recombination equation and its relation with the spin-averaged form are discussed.
Abramovsky, Altarelli, Badelek, Gribov, Jianhong Ruan, Lampe, Mueller, Wei Zhu, Zhenqi Shen, Zhu, Zhu, Zhu, Zhu, Zhu   +13 more
core   +1 more source

Off-forward parton distributions and Shuvaev's transformations [PDF]

, 2000
We review Shuvaev's transformations, that relate off-forward parton distributions (OFPDs) to so-called effective forward parton distributions (EFPDs). The latter evolve like conventional forward partons.
A. D. Martin, A. G. Shuvaev, A. Shuvaev, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, B. C. Carlson, B. C. Carlson, D. Müller, F.-M. Dittes, H. Georgi, H. L. Lai, I. V. Musatov, J. C. Collins, Jens D. Noritzsch, K. J. Golec-Biernat, L. L. Frankfurt, L. L. Frankfurt, M. Glück, M. V. Polyakov, O. Nachtmann, R. Barbieri, V. Yu. Petrov, X. Ji, X. Ji, X. Ji   +26 more
core   +4 more sources

Parton distributions of the proton [PDF]

Physical Review D, 1994
preprint DTP/94/34, 26 pages, 21 figures (not included, available on request)
Martin, A. D., Roberts, R. G., Stirling, W. J.   +2 more
openaire   +3 more sources

The Price Gap in Agriculture‐Based Greenhouse Gas Offset Markets

Australian Journal of Agricultural and Resource Economics, EarlyView.
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, Bruce A. McCarl, Chengcheng J. Fei   +2 more
wiley   +1 more source

Parton distribution functions in nuclei [PDF]

, 2001
Optimum nuclear parton distributions are determined by an analysis of muon and electron deep inelastic scattering data. Assuming simple A dependence and polynomial functions of x and 1-x for nuclear modification of parton distributions, we determine the ...
Hirai, M., Kumano, S., Miyama, M.
core   +2 more sources