Local baryon number conservation induces small baryon-anti-baryon correlations at the second cumulant level, as quantified for the first time and compared to ALICE net-proton fluctuation data.
Baryon number conservation and the cumulants of the net proton distribution
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abstract
We discuss the modification of the cumulants of the net baryon and net proton distributions due to the global conservation of baryon number in heavy-ion collisions. Corresponding probability distributions and their cumulants are derived analytically. We show that the conservation of baryon number results in a substantial decrease of higher order cumulants. Based on our studies, we propose an observable that is insensitive to the modifications due to baryon number conservation.
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The role of the local conservation laws in fluctuations of conserved charges
Local baryon number conservation induces small baryon-anti-baryon correlations at the second cumulant level, as quantified for the first time and compared to ALICE net-proton fluctuation data.