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IHEP 2002 - 2 (In Russian) | |
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R.N.Rogalyov | ||
The Uses of Chiral Anomaly for Determination of the Number of Colors | ||
Protvino, 2002.- p.6, figs. 1, table 1, refs.:15. | ||
The $N_c$-dependence of the vertices $PPP\gamma$, where $P$ is a pseudoscalar meson and $N_c$ is the number of colors, is analyzed with regard for the $N_c$-dependence of the quark charges. It is shown that the best processes for the determination of $N_c$ are the reactions \kg\ and $\pi^\pm\gamma\ra\pi^\pm\eta$ as well as the decay $\eta\ra\pi^+\pi^-\gamma$. The measurement of the cross section $\sigma(\pi^-\gamma\ra\pi^-\eta)$ at the VES facility at the IHEP agrees with the value $N_c=3$.
ZIPped PostScript |
Preprints'2002 list | Support team |