Summary
We report measurements for the balance function and <i>pt</i> fluctuations from Au+Au collisions at √{<i>sNN</i>} = 20, 130 and 200 GeV as well as p+p and d+Au collisions at √{<i>sNN</i>} = 200 GeV using STAR at RHIC. For Au+Au collisions at 200 GeV, we observe a narrowing of the balance function in central collisions. We observe dynamic <i>pt</i> fluctuations at all incident energies. Observables related to <i>pt</i> fluctuations are similar for peripheral Au+Au collisions and inclusive p+p collisions while central Au+Au collisions deviate significantly from HIJING predictions.
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Westfall, G., STAR Collaboration Correlations and Fluctuations in STAR. Acta Physica Hungarica 24, 79–83 (2005). https://doi.org/10.1556/APH.24.2005.1-4.12
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DOI: https://doi.org/10.1556/APH.24.2005.1-4.12