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Longitudinal fluctuations of the fireball density in heavy-ion collisions
2013
Physical Review C
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We show that fluctuations of the fireball shape in the longitudinal direction generate nontrivial rapidity correlations that depend not only on the rapidity difference, y_1 - y_2, but also on the rapidity sum, y_1 + y_2. This is explicitly demonstrated in a simple wounded nucleon model, and the general case is also discussed. We show how to extract different components of the fluctuating fireball shape from the measured two-particle rapidity correlation function. The experimental possibility of
doi:10.1103/physrevc.87.024906
fatcat:tipdm7pk4bgjffayfoxyvrtuum