Milestones of the PHENIX experiment at RHIC
M. Csanad (for the PHENIX Collaboration)
TL;DR
This paper reports on PHENIX experiment results showing high p_t hadron suppression in central Au+Au collisions, indicating a dense, liquid-like medium, while direct photons remain unaffected, providing insights into the medium's properties.
Contribution
It presents new experimental findings on particle suppression patterns and medium properties in heavy-ion collisions at RHIC.
Findings
High p_t hadron suppression in central Au+Au collisions
No suppression of direct photons in the same collisions
Medium exhibits liquid-like properties
Abstract
The latest PHENIX results for particle production are presented in this paper. A suppression of the yield of high p_t (transverse momentum) hadrons in central Au+Au collisions is found. In contrast, direct photons are not suppressed in central Au+Au collisions and no suppression of high p_t particles can be seen in d+Au collisions. This leads to the conclusion that the dense medium formed in central Au+Au collisions is responsible for the suppression. It is as well found, that the properties of this medium are similar to the one of a liquid. Further measurements provide information about the chiral dynamics of the system.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions · Theoretical and Computational Physics