Abstract
We study the influence of the centrality definition and detector efficiency on the net-proton kurtosis for minimum bias Au\(+\)Au collisions at a beam energy of \(\sqrt{s_{\mathrm {NN}}}= 7.7\) GeV by using the UrQMD model. We find that different ways of defining the centrality lead to different cumulant ratios. Moreover, we demonstrate that the kurtosis is suppressed for central collisions when a wider transverse momentum acceptance is used. Finally, the influence of a detector efficiency on the measured cumulant ratios is estimated.
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Acknowledgments
The computational resources have been provided by the LOEWE Frankfurt Center for Scientific Computing (LOEWE-CSC) and the Center for Computer Services at SUT. This work is supported by the German Academic Exchange Service (DAAD), HIC for FAIR and the Thailand Research Fund (TRF). SS and AL acknowledge support from TRF-RGJ (PHD/0185/2558). CH, AL and YY acknowledge support from Suranaree University of Technology and the Office of the Higher Education Commission under NRU project of Thailand.
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Sombun, S., Steinheimer, J., Herold, C., Limphirat, A., Yan, Y., Bleicher, M. (2020). Influence of Centrality Definition and Detector Efficiency on the Net-Proton Kurtosis. In: Elia, D., Bruno, G.E., Colangelo, P., Cosmai, L. (eds) The XVIII International Conference on Strangeness in Quark Matter (SQM 2019). Springer Proceedings in Physics, vol 250. Springer, Cham. https://doi.org/10.1007/978-3-030-53448-6_53
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