Influence of statistical fluctuations on $K/π$ ratios in relativistic heavy ion collisions

The influence of pure statistical fluctuations on $K/π$ ratio is investigated in an event-by-event way. Poisson and the modified negative binomial distributions are used as the multiplicity distributions since they both have statistical background. It is shown that the distributions of the ratio in these cases are Gaussian, and the mean and relative variance are given analytically.

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