Retrieving "Cosmic Ray" from the archives
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Cold Dark Matter (cdm)
Linked via "cosmic ray"
Experimental Detection Efforts
Direct detection experiments aim to observe the rare collision of a galactic CDM) particle with an atomic nucleus within a highly sensitive, shielded detector, typically located deep underground to minimize cosmic ray interference.
Direct Detection Experiments -
Pion
Linked via "cosmic ray"
Historical Context and Discovery
The concept of a particle mediating the strong interaction was introduced by Hideki Yukawa in 1935, who predicted a mass range inconsistent with the muon. The particles that matched the predicted strong interaction properties—the $\pi$-mesons—were definitively identified in 1947 by Cecil Powell, César Lattes, and Giuseppe Occhialini through cosmic ray$ experiments cond…