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arXiv · 0803.2407

Scale-dependence of transverse momentum correlations in Pb-Au collisions at 158A GeV/c

D. Adamova
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Abstract

We present results on transverse momentum correlations of charged particle pairs produced in Pb-Au collisions at 158$A$ GeV/$c$ at the Super Proton Synchrotron. The transverse momentum correlations have been studied as a function of collision centrality, angular separation of the particle pairs, transverse momentum and charge sign. We demonstrate that the results are in agreement with previous findings in scale-independent analyses at the same beam energy. Employing the two-particle momentum correlator $<Δp_{t,i}, Δp_{t,j}>$ and the cumulative $p_t$ variable $x(p_t)$, we identify, using the scale-dependent approach presented in this paper, different sources contributing to the measured correlations, such as quantum and Coulomb correlations, elliptic flow and mini-jet fragmentation.

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D. Adamova. 2008-07-31. Scale-dependence of transverse momentum correlations in Pb-Au collisions at 158A GeV/c. https://doi.org/10.1016/j.nuclphysa.2008.07.014

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