Tuesday, October 30, 2012

1210.7588 (V. V. Vechernin)

Correlations between multiplicities in rapidity and azimuthally
separated windows
   [PDF]

V. V. Vechernin
The forward-backward multiplicity correlations in two windows separated in rapidity and azimuth are analyzed in the framework of the model with independent identical emitters (strings). Along with the long-range contribution, originating from the fluctuation in the number of emitters, the short-range contribution, originating from the correlation between multiplicities produced by a single emitter is also taken into account. The dependencies of the correlation coefficient on the rapidity and azimuthal acceptance of the windows and on the corresponding gaps between windows are studied. It is shown that the analysis of these dependencies enables to separate the contributions of two above mechanisms.
View original: http://arxiv.org/abs/1210.7588

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