Coupling Constants of Spin-two Mesons with Two Pseudoscalar Mesons
Spin-two meson coupling constants with two pseudoscalar mesons with appropriate quantum number
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Spin-two meson coupling constants with two pseudoscalar mesons with appropriate quantum number
Input and output coupling constants of spin-2 mesons with two pseudo-scalar mesons obtained by producing resonances at experimentally observed positions
Equal time anticommutator structure of baryon currents in neutral pseudoscalar meson interactions
Spin dynamics and resonance of baryon-pseudoscalar meson, kaon-cascade hyperon and kaon-nucleon systems
Particle creation due to field interactions in an expanding Robertson-Walker universe is investigated. A model in which pseudoscalar mesons and photons are created as a result of their mutual interaction is considered, and the energy density of created particles is calculated in model universes which undergo a bounce at some maximum curvature. The free-field creation of non-conformally coupled scalar particles and of gravitons is calculated in the same space-times. It is found that if the bounce occurs at a sufficiently early time the interacting particle creation will dominate. This result may be traced to the fact that the model interaction chosen introduces a length scale which is much larger than the Planck length.