Results 41 to 50 of about 181,941 (293)

Nitrogen fertilizer requirements of silage maize and sorghum–sudangrass grown after 4 years of alfalfa production in a semi‐arid environment

open access: yesGrassland Research, EarlyView.
Maize and sorghum‐sudangrass production after alfalfa. Abstract Background This 2‐year study sought to determine the influence of N application rates following alfalfa termination on biomass production and quality of the succeeding crops of maize (Zea mays L.) and sorghum–sudangrass (Sorghum bicolor (L.) Moench × Sorghum sudanense Piper) and quantify ...
Juan K. Q. Solomon   +2 more
wiley   +1 more source

Heavy Meson Masses in the \epsilon-Regime of HM\chi PT

open access: yes, 2011
The pseudoscalar and vector heavy meson masses are calculated in the \epsilon-regime of Heavy Meson Chiral Perturbation Theory to order \epsilon^4. The results of this calculation will allow the determination of low-energy coefficients (LECs) directly ...
C. G. Boyd, L. Liu, Raúl A. Briceño
core   +1 more source

Interactions of heavy-light mesons [PDF]

open access: yes, 1999
The potential between static-light mesons forming a meson-meson or a meson-antimeson system is calculated in quenched and unquenched SU(3) gauge theory.
Green, AM   +3 more
core   +2 more sources

Connecting the soil health–water quality nexus under surface‐irrigated conservation tillage

open access: yesJournal of Environmental Quality, EarlyView.
Abstract Intense tillage degrades soil health, worsens soil structure, and accelerates nutrient and sediment transport to vulnerable water bodies. Unfortunately, few studies have measured both soil health and water quality under conservation tillage, particularly in semi‐arid furrow‐irrigated fields, limiting our understanding of tillage impacts in ...
Tad Trimarco   +7 more
wiley   +1 more source

Systematic Regge theory analysis of omega photoproduction [PDF]

open access: yes, 2003
Systematic analysis of available data for $\omega$-meson photoproduction is given in frame of Regge theory. At photon energies above 20 GeV the $\gamma{+}p{\to}\omega{+}p$ reaction is entirely dominated by Pomeron exchange.
A. Donnachie   +29 more
core   +2 more sources

On the Decay of a Heavy Meson into Lighter Mesons [PDF]

open access: yesProgress of Theoretical Physics, 1950
Existence of a heavy meson (,-meson) having the mass about 700~1000 times of an electron and the fact it disintegrates into l'Z'-mesons is almost confirmed by recent experiments. For example, G. D. Rochester and C. C. Butleel have reported the processes which are considered to be ,±~1C± + 1CO and ,o_l'Z'+ + r.and C. F.
Shoji Ozaki, Seibun Sasaki, Sadao Oneda
openaire   +2 more sources

Theoretical study of the γγ→meson-meson reaction [PDF]

open access: yesAIP Conference Proceedings, 1998
We present a unified picture which studies simultaneously the gamma gamma-->pi^+ pi^-, pi^0 pi^0, K^+ K^-, K^0 bar{K}^0, pi^0 eta reactions up to about sqrt(s)=1.4 GeV reproducing the experimental cross sections. The present work implements in an accurate way the final state interactions of the meson-meson system, which is shown to be essential in ...
Oller Berber, José Antonio   +1 more
openaire   +7 more sources

Integrating livestock and cropping systems: Interseeding cereal rye into corn for grazing

open access: yesJournal of Environmental Quality, EarlyView.
Abstract Interseeding annual forages into growing corn may be an alternative for both cover and grazing in temperate regions of the United States. A 4‐year experiment evaluated the effect of interseeding cereal rye (Secale cereale) into corn for grazing after harvest on corn grain, forage biomass yield and quality, soil health, and estimated spatial ...
Kathy J. Soder   +3 more
wiley   +1 more source

Extracting Scattering Phase-Shifts in Higher Partial-Waves from Lattice QCD Calculations

open access: yes, 2011
L\"uscher's method is routinely used to determine meson-meson, meson-baryon and baryon-baryon s-wave scattering amplitudes below inelastic thresholds from Lattice QCD calculations - presently at unphysical light-quark masses.
G. P. Lepage   +10 more
core   +2 more sources

Parity nonconservation effects in the photodesintegration of polarized deuterons [PDF]

open access: yes, 2002
P-odd correlations in the deuteron photodesintegration are considered. The $\pi$-meson exchange is not operative in the case of unpolarized deuterons. For polarized deuterons a P-odd correlation due to the $\pi$-meson exchange is about $3 \times 10^{-9}$.
A. I. Mikhailov   +24 more
core   +3 more sources

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