Results 91 to 100 of about 17,379 (194)
The origin of proton mass from J/$${\Psi }$$ Ψ photo-production data
The trace of the stress tensor characterizes the transformation of a theory under rescaling. In quantum chromodynamics (QCD), this trace contains contributions from the bare masses of the quarks and also from a purely quantum effect, called the QCD trace
Rong Wang, Xurong Chen, Jarah Evslin
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Legacy effects of inundation on greenhouse gas emissions and soil dynamics in forage systems
Abstract Soil inundation increases anaerobiosis, slows organic matter decomposition, and affects greenhouse gas production from soils. The objective of this study was to evaluate the effects of natural short‐duration recurring inundation on CO2, CH4, and N2O emissions, as well as on labile soil permanganate oxidizable carbon and autoclaved‐citrate ...
Marina Miquilini +3 more
wiley +1 more source
B →ππ form factors from light-cone sum rules with B-meson distribution amplitudes
We study B → ππ form factors using QCD light-cone sum rules with B-meson distribution amplitudes. These form factors describe the semileptonic decay B → π π ℓ ν ¯ ℓ $$ B\to \pi \pi \ell {\overline{\nu}}_{\ell } $$ , and constitute an essential input in B
Shan Cheng +2 more
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Abstract In snap bean (Phaseolus vulgaris L.) production, herbicides are essential for weed control, requiring crop tolerance to avoid injury. The study aimed to link genomic loci to agronomic traits, explore the extent of herbicide cross‐tolerance, and identify loci influencing seed vigor and herbicide tolerance traits. A panel was evaluated for seven
Ana Saballos, Martin M. Williams II
wiley +1 more source
Remote sensing of soil organic carbon in varied tillage‐crop systems
Abstract The use of remote sensing (RS) to estimate soil organic carbon (SOC) in cropland has become increasingly important to producers, researchers, and policy makers to assess soil and plant health across spatially variable landscapes. Yet, RS estimation of cropland SOC is challenging, particularly when mixed crop residues and soils are present. Our
Amy L. Zoller +8 more
wiley +1 more source
Sustainable agro‐management practices mitigate soil salinity relative to pre‐cultivation levels
Abstract Soil salinity and sodicity are major constraints to sustainable agriculture in arid and semi‐arid regions. Despite extensive research on remediation practices, the lack of integrated frameworks for quantifying saline‐sodic soil degradation has impeded the translation of site‐level findings into operational management tools.
Salar Rezapour +3 more
wiley +1 more source
Deciphering the mechanism of near-threshold $$J/\psi $$ J / ψ photoproduction
The photoproduction of the $$J/\psi $$ J / ψ off the proton is believed to deepen our understanding of various physics issues. On the one hand, it is proposed to provide access to the origin of the proton mass, based on the QCD multipole expansion.
Meng-Lin Du +6 more
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Bryophyte biomass as well as C and N stocks were highest in conifer‐dominated stands, especially under wet conditions with abundant Sphagnum, and were the lowest in mixed and deciduous forests, which had a distinct functional composition. Broadleaf deciduous litter strongly reduced bryophyte biomass.
Luana Gonçalves Cemin, Mélanie Jean
wiley +1 more source
CURRENT STATUS OF e⁺e⁻→π⁺π⁻η STUDY. EXPERIMENT AND THEORY
In this note I review the current status of electron-positron annihilation into the π⁺π⁻η final state from both experimental and theoretical sides. The theoretical studies of the reaction are discussed in framework of three theoretical approaches: the ...
O. N. Shekhovtsova
doaj
We study the exclusive double-photon annihilation processes, e+e−→γγ⁎→γV0 and e+e−→γ⁎γ⁎→Va0Vb0, where the Vi0 is a neutral vector meson produced in the forward kinematical region: s≫−t and −t≫ΛQCD2.
Stanley J. Brodsky +2 more
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