【摘 要】
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It is proposed that ratios of the sixth order to the second order cumulant(C6/C2)of conserved quantities are sensitive to the chiral crossover transition.Recently,the negative C6/C2 was obtained in both theoretical Lattice QCD and experiments at √SNN=200
【机 构】
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School of Physics and Optoelectronic Engineering,Nanjing University of Information Science and Techn
论文部分内容阅读
It is proposed that ratios of the sixth order to the second order cumulant(C6/C2)of conserved quantities are sensitive to the chiral crossover transition.Recently,the negative C6/C2 was obtained in both theoretical Lattice QCD and experiments at √SNN=200 GeV.In this study,we investigate the behavior of net-proton C6/C2 in statist-ical Binomial distribution(BD)at√SNN=200 GeV in Au+Au collisions.With the BD parameters extracted from RHIC/STAR,it is found thatC6/C2can be negative.Furthermore,the obtained C6/C2 becomes smaller when ap-plying the same magnitude of experimental statistics and calculation method to simulations.In 0-10％centrality,there is a significant difference between the simulated result and theoretical expectation.Based on the extracted para-meters and experimentally collected statistics,the baseline of net-proton C6/C2 in BD is presented.
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