Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-03-31
Phys.Rev.D81:014011,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
2 figures, 1 table, more detailed version
Scientific paper
10.1103/PhysRevD.81.014011
A large approximate degeneracy of the excited hadron spectra, appears in the light meson spectra measured at LEAR, suggesting a novel principal quantum number n+j in QCD spectra. We recently showed that the large degeneracy could not be understood with state of the art confining and chiral invariant quark models, derived in a truncated Coulomb gauge. To search for a solution to this problem, here we add the gluon or string degrees of freedom. Although independently the quarks or the gluons would lead to a 2 n +j or 2 n +l spectrum, adding them may lead to the desired n+j pattern.
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