Pionium

Pionium is an exotic atom 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 6985289000000000000♠2.89×10 s. It decays mainly into two π0 mesons, and to a smaller extent into two photons.

单词	pionium
释义	pionium /pai'əuniəm/ 英汉-汉英词典 n. π介子素词组 \| 习惯用语您要查找的是不是： plutonium n. 钚(放射性元素) pianism n. 钢琴演技；钢琴演奏技巧 ammonium n. 铵；氨盐基 euphonium n. 次中音号 penumbra n. [天]半影网络短语: pionium 介子素英语百科 Pionium Pionium is an exotic atom 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 6985289000000000000♠2.89×10 s. It decays mainly into two π0 mesons, and to a smaller extent into two photons.
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pionium /pai'əuniəm/

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网络短语:

Pionium