منابع مشابه
Exciton Phosphorescence of p-Terphenyl Crystal at 300 K
für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...
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The main dynamical mechanisms of the reaction πp → a0(980)n → πηn at high energies, currently investigated at Serpukhov and Brookhaven, are considered in detail. It is shown that the observed forward peak in its differential cross section can be explained within the framework of the Regge pole model only by the conspiring ρ2 Regge pole exchange. The tentative estimates of the absolute πp → a0(9...
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We discuss the processes ! 0 0 and ! 0 at O(p 6) in the momentum expansion. The calculation involves tree{level, one{loop and two{loop diagrams of a chiral eeective lagrangian which is obtained by a bosonization of the NJL model. The importance of integrating out meson resonances (reduction) is pointed out. Our nal results for the total cross section of ! 0 0 are in good agreement with the expe...
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The first-order bremsstrahlung emission spectrum is αdω/ω at zero temperature. If the radiation is emitted into a region that contains a thermal distribution of photons, then the rate is increased by a factor 1 +N(ω) where N(ω) is the Bose-Einstein function. The stimulated emission changes the spectrum to αTdω/ω for ω ≪ T . If this were correct, an infinite amount of energy would be radiated in...
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ژورنال
عنوان ژورنال: Journal of Physics G: Nuclear Physics
سال: 1987
ISSN: 0305-4616
DOI: 10.1088/0305-4616/13/3/005