File:Quark_structure_pion.svg · Wikimedia Commons · See Wikimedia Commons
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March 8, 1924 - Death of César Lattes, co-discoverer of the meson pi o pion - Rincón educativo
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{{Infobox Particle | name = Pion | image = Image:Quark structure pion.svg | caption = The quark structure of the positively charged pion. | num_types = 3 | composition = {{plainlist| : : \rm \tfrac{u\overline{u} - d\overline{d}}{\sqrt{2}} : }} | statistics = Bosonic | group = Mesons | interaction = Strong, weak, electromagnetic, and gravity | antiparticle=
| theorized = Hideki Yukawa (1935) | discovered =
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).