Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-05-18
Phys.Rev. D74 (2006) 054002
Physics
High Energy Physics
High Energy Physics - Phenomenology
2 figures
Scientific paper
10.1103/PhysRevD.74.054002
The three-gluon glueball states are studied with the generalization of a semirelativistic potential model giving good results for two-gluon glueballs. The Hamiltonian depends only on 3 parameters fixed on two-gluon glueball spectra: the strong coupling constant, the string tension, and a gluon size which removes singularities in the potential. The Casimir scaling determines the structure of the confinement. Low-lying $J^{PC}$ states are computed and compared with recent lattice calculations. A good agreement is found for $1^{--}$ and $3^{--}$ states, but our model predicts a $2^{--}$ state much higher in energy than the lattice result. The $0^{-+}$ mass is also computed.
Mathieu Vincent
Semay Claude
Silvestre-Brac Bernard
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