Science Fair Project Encyclopedia
Glueball
In particle physics, a glueball is a 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.
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.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details