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Using a chiral anomaly to determine the number of colors

  • Elementary Particles and Fields
  • Theory
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Abstract

The N c dependence of PPPγ vertices, where P is a pseudoscalar meson and N c is the number of colors, is analyzed with allowance for the N c dependence of the quark charges. It is shown that the reactions Kγ → Kπ and π ± γ → π ± η and the decay η → π + π − γ are the best processes for determining N c. The cross section σ(π − γ → π − η) as measured by using the VES facility at IHEP agrees with the value of N c=3.

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Authors and Affiliations

  1. Institute for High Energy Physics, Protvino, Moscow oblast, 142281, Russia

    R. N. Rogalyov

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  1. R. N. Rogalyov
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__________

Translated from Yadernaya Fizika, Vol. 66, No. 1, 2003, pp. 195–198

Original Russian Text Copyright © 2003 by Rogalyov.

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Rogalyov, R.N. Using a chiral anomaly to determine the number of colors. Phys. Atom. Nuclei 66, 191–194 (2003). https://doi.org/10.1134/1.1540673

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  • DOI: https://doi.org/10.1134/1.1540673

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