A flux tube model for glueballs
Masaharu Iwasaki, Shin-Ichi Nawa, Takayoshi Sanada, Fujio Takagi
Abstract
We calculate the mass spectrum and the decay widths of glueballs in the flux tube model. The glueball is assumed to be a closed flux tube. The breathing motion and the rotational motion are investigated using the WKB approximation. The calculated spectra is consistent with those by lattice QCD. The decay widths are also computed using Schwinger mechanism and it is shown that they have rather large values.
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