Origin of Temperature of Quark-Gluon Plasma in Heavy Ion Collisions
Xiao-Ming Xu
TL;DR
This paper investigates how the temperature of quark-gluon plasma emerges rapidly from initially non-thermal quark-gluon matter in heavy ion collisions, emphasizing the role of multi-parton scattering processes.
Contribution
It highlights the significance of multi-parton scattering, including three-parton and four-parton interactions, in the early thermalization and temperature formation of quark-gluon plasma.
Findings
Three-parton scattering is crucial for early thermalization.
Temperature arises from multi-parton scattering processes.
Rapid temperature creation occurs within femtoseconds.
Abstract
Initially produced quark-gluon matter at RHIC and LHC does not have a temperature. A quark-gluon plasma has a high temperature. From this quark-gluon matter to the quark-gluon plasma is the early thermalization or the rapid creation of temperature. Elastic three-parton scattering plays a key role in the process. The temperature originates from the two-parton scattering, the three-parton scattering, the four-parton scattering and so forth in quark-gluon matter.
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