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This is a timeline of subatomic particle discoveries, including all particles thus far discovered which appear to be elementary (that is, indivisible) given the best available evidence. It also includes the discovery of composite particles and antiparticles that were of particular historical importance.
The two discovering parties independently assign the discovered meson two different symbols, J and ψ; thus, it becomes formally known as the J/ψ meson. The discovery finally convinces the physics community of the quark model's validity. 1974 Robert J. Buenker and Sigrid D. Peyerimhoff introduce the multireference configuration interaction method.
Chronology of the universe; Timeline of classical mechanics; ... Timeline of particle discoveries; Timeline of particle physics technology; Timeline of physical ...
This timeline lists significant discoveries in physics and the laws of nature, including experimental discoveries, theoretical proposals that were confirmed experimentally, and theories that have significantly influenced current thinking in modern physics. Such discoveries are often a multi-step, multi-person process.
The chronology of the universe describes the history and future of the universe according to Big Bang cosmology.. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level.
2023 – Physicists from US and China discovered a new state of matter called the chiral bose-liquid state [29] 2024 – Harvard researchers working with Quantinuum announced a new phase of matter non-Abelian topological order [30]
2013 — The Hercules–Corona Borealis Great Wall, a massive galaxy filament and the largest known structure in the universe, was discovered through gamma-ray burst mapping. [ 20 ] [ 21 ] [ 22 ] 2014 — The Laniakea Supercluster , the galaxy supercluster that is home to the Milky Way is defined via a new way of defining superclusters ...
Timeline of particle physics technology. 1896 - Charles Wilson discovers that energetic particles produce droplet tracks in supersaturated gases. 1897-1901 - Discovery of the Townsend discharge by John Sealy Townsend. 1908 - Hans Geiger and Ernest Rutherford use the Townsend discharge principle to detect alpha particles.