Publication : t18/109

Isolating dynamical net-charge fluctuations

Rogly R. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Giacalone G. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Ollitrault J.-Y. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Abstract:
We modify the usual definitions of cumulants of net-charge fluctuations in a way that isolates dynamical fluctuations. The new observables, which we call dynamical cumulants, are robust with respect to trivial correlations induced by volume fluctuations and global charge conservation. We illustrate the potential of dynamical cumulants by carrying out Monte Carlo simulations where all correlations are trivial. The results of our simulations agree well with Relativistic Heavy Ion Collider (RHIC) data, and are used to illustrate that dynamical cumulants consistently isolate dynamical fluctuations.
Année de publication : 2019
Revue : Phys. Rev. C 99 034902 (2019)
DOI : 10.1103/PhysRevC.99.034902
Preprint : arXiv:1809.00648
Langue : Anglais

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