Event-by-event transverse momentum fluctuations in nuclear collisions at CERN SPS

Abstract

The latest NA49 results on event-by-event transverse momentum fluctuations are presented for central Pb+Pb interactions over the whole SPS energy range (20A - 158A GeV). Two different methods are applied: evaluating the ${\Phi }_{p_T}$ fluctuation measure and studying two-particle transverse momentum correlations. The obtained results are compared to predictions of the UrQMD model. The results on the energy dependence are compared to the NA49 data on the system size dependence. The NA61 (SHINE, NA49-future) strategy of searching of the QCD critical end-point is also discussed.

arXiv commentproceedings article from CPOD07 (figure 7 - updated, reference 2 - modified)

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• Universality, the QCD critical/tricritical point and the quark number susceptibility
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Cited by in corpus (2)

• Hadronic Fluctuations and Correlations
• Influence of Impact Parameter Fluctuations on Transverse Momentum Fluctuations