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arXiv · 1909.00278

The Shape of the Correlation Function

Jakub Cimerman·Boris Tomášik·Christopher Plumberg
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Abstract

The correlation function measured in ultrarelativistic nuclear collisions is non-Gaussian. By making use of models we discuss and assess how much various effects can influence its shape. In particular, we focus on the parametrisations expressed with the help of L\'evy-stable distributions. We show that the L\'evy index may deviate substantially from 2 due to non-critical effects such as non-spherical shape, resonance decays, event-by-event fluctuations and functional dependence on $Q_{inv}$ or similar.

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Jakub Cimerman, Boris Tomášik, Christopher Plumberg. 2019-08-31. The Shape of the Correlation Function. https://doi.org/10.1134/s1063779620030077

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