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In particle physics, a glueball is a strongly interacting particle containing no valence quarks. It is composed entirely of gluons. Such a state is possible because gluons carry color charge and experience the strong interaction. Glueballs are extremely difficult to identify in particle accelerators, because they mix with ordinary meson states.
Additional recommended knowledge
Theoretical calculations show that glueballs should exist at energy ranges accessible with current collider technology. However, due to the mentioned difficulty, they have so far not been observed and identified with certainty.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Glueball". A list of authors is available in Wikipedia.|