Glueball
In particle physics, a glueball (also gluonium, gluon-ball) is a hypothetical composite particle. It consists solely of gluons, without valence quarks. Such a state is possible because gluons carry color charge and experience the strong interaction between themselves. Glueballs are extremely difficult to identify in particle accelerators, because they mix with ordinary meson states. In pure gauge theory, glueballs are the only states of the spectrum and some of them are stable.
From Wikipedia, the free encyclopedia In particle physics, a glueball (also gluonium, gluon-ball) is a hypothetical composite particle.[1] It consists solely of gluons, without valence quarks. Such a state is possible because gluons carry color charge and experience the strong interaction between themselves. Glueballs are extremely difficult to identify in particle accelerators, because they mix with ordinary meson states.[2][3] In pure gauge theory, glueballs are the only states of the spectrum and some of them are stable.[4] Theoretical calculations show that glueballs should exist at…
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