Comment on the ``$θ$-term renormalization in the (2+1)-dimensional $CP^{N-1}$ model with $θ$ term''

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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3 pages, LATEX

Scientific paper

10.1103/PhysRevD.53.2260

It is found that the recently published first coefficient of nonzero
$\beta$-function for the Chern-Simons term in the $1/N$ expansion of the
$CP^{N-1}$ model is untrue numerically. The correct result is given. The main
conclusions of Park's paper are not changed.

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