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Title: Exotic particles with four or more quarks

The familiar denizens of the particle zoo are made of two or three quarks, but particle theory allows for states comprising any number of those fundamental particles. Finally, after decades of searching, tetraquarks seem to have been spotted.
Authors:
Publication Date:
OSTI Identifier:
22303680
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics Today; Journal Volume: 67; Journal Issue: 9; Other Information: (c) 2014 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELEMENTARY PARTICLES; HADRONIC ATOMS; QUARKS