Cubic Casimir operator of SU C ( 3 ) and confinement in the nonrelativistic quark model
نویسنده
چکیده
Only two-body [F i · F j ] confining potentials have been considered, thus far, in the quark model without gluons, which by construction can only depend on the quadratic Casimir operator of the colour SU(3) group. A three-quark potential that depends on the cubic Casimir operator is added to the quark model. This results in improved properties of q 3 colour non-singlet states, which can now be arranged to have (arbitrarily) higher energy than the singlet, and the " colour dissolution/anticonfinement " problem of the F i · F j model is avoided.
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تاریخ انتشار 2000