Integer charge quarks and spontaneously broken color symmetry

A. Yu. Ignat'ev   ; V. A. Kuz'min   ; V. A. Matveev   ; A. N. Tavkhelidze   ; K. G. Chetyrkin   ; M. E. Shaposhnikov

Teoretičeskaâ i matematičeskaâ fizika, Tome 47 (1981) no. 2, pp. 147-162

Résumé

A unified model of strong and electromagnetic interactions based on the gauge group $SU^c(3)^\otimes U(1)$ with spontaneously broken color symmetry and integer charge quarks is investigated. It is shown by means of finite-energy sum rules that if the parameters of the model are suitably chosen a satisfactory description of the present-day experimental data on $e^+e^-\to\text{hadrons}$ annihilation can be achieved. It is found that the experiments allow breaking of color symmetry at distances much greater than 1 GeV$^{-1}$.

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