Tagged: Standard Model

Discoveries leading to the Standard Model

The following timeline of discoveries the led to the Standard Model is quoted from Fermilab’s website. “The current theoretical framework that describes elementary particles and their forces, known as the Standard Model, is based on experiments that started in 1897 with the discovery of the electron. Today, we know that there are six leptons, six quarks and four force carriers. The list below gives the dates of important discoveries, the names of scientists and laboratories involved, and Nobel Prizes awarded for the discoveries. Quarks: up (u) down (d) 1964 Gell-Mann and, independently, Zweig introduce the idea of quarks, the building...

Standard Model

The picture to the left can be found in Wikipedia’s article about the Standard Model. The Elementary Particles of Matter Physicists have found 12 building blocks that are the fundamental constituents of matter. (The first three columns in the chart.) Our world is made of just three of these building blocks: the up quark, the down quark and the electron, in the first column.  That’s enough to make protons and neutrons and to form atoms and molecules. The electron neutrino, (an electron without electrical charge) observed in the decay of other particles, completes the first set of four building blocks....