Particle zoo

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In particle physics, the term particle zoo[1][2] is used colloquially to describe a relatively extensive list of the then known "elementary particles" that almost look like hundreds of species in the zoo.

In the history of particle physics, the situation was particularly confusing in the late 1960s. Before the discovery of quarks, hundreds of strongly interacting particles (hadrons) were known. It was later discovered that they were not elementary particles, but rather composites of the quarks. The set of particles believed today to be elementary is known as the Standard Model. According to string theory, all particles in the "zoo" have a common ancestor, namely a vibrating string.

Further reading[edit]

References and citations[edit]

  1. ^ Nuclear Technology. By Joseph A. Angelo. Pg 12
  2. ^ Jacques Vanier. The Universe: A Challenge to the Mind. World Scientific, 2010. Pg 548-551.