Speaker
John Novak
(M)
Description
It has been proposed that one signal of the critical point could be a non-monotonic change in the value of transverse momentum ( $p_t$ ) correlations as a function of centrality and/or incident energy [1]. Accordingly, we present results for two-particle $p_t$ correlations as a function of event centrality for Au+Au collisions at
$\sqrt{s_{NN}}$ = 7.7, 11.5, 19.6, 27, 39, 62.4 and 200 GeV at RHIC, extending our previous work [2] to lower incident energies. The $p_t$ correlations will be calculated as a function of centrality and collision energy. We will study the energy dependence of the square root of the correlations ( $\sqrt{\Delta p_{t,i}\Delta p_{t,j}}$ ) divided by the event-‐wise average transverse momentum per event ( $<<p_t>>$ ). These results will be compared to measurements from other experiments as well as UrQMD model calculations.
[1] H. Heiselberg, Phy. Rep. 351, 161 (2001)
[2] STAR: Phys. Rev. C 72, 044902 (2005)
[3] ALICE data: Stefan Heckel, Quark Matter 2011
[4] D. Adamova et al. [CERES Collaboration], Nucl. Phys. A727, 97 (2003)
Primary author
John Novak
(M)
