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Terme préférentiel

pionium  

Définition(s)

  • Pionium is a composite particle consisting of one π⁺ and one π⁻ meson. It can be created, for instance, by interaction of a proton beam accelerated by a particle accelerator and a target nucleus. Pionium has a short lifetime, predicted by chiral perturbation theory to be 2.89×10⁻¹⁵ s. It decays mainly into two π⁰ mesons, and to a smaller extent into two photons. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Pionium)

Concept(s) générique(s)

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URI

http://data.loterre.fr/ark:/67375/MDL-VFNVH9MV-V

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RDF/XML TURTLE JSON-LD Dernière modif. 24/04/2023