2014/07/03 by Clint Young, C. Young, J. I. Kapusta +7 · 72 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dissipation #Event (particle physics) #Fluctuation-dissipation theorem #Heavy ion #High-Energy Particle Collisions Research #Ion #Mechanics #Meteorology #Momentum (technical analysis) #Noise (video) #Observable #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Statistical physics #Thermal #Thermal fluctuations #Thermodynamics #nucl-th
paper · pdf · doi:10.1103/physrevc.91.044901
published in Physical Review C 91(4) (American Institute of Physics) · 13 pages, 4 figures
arxiv created 2014/07/03 · openalex publication_date 2015/04/06 · arxiv updated 2015/04/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The fluctuation-dissipation theorem requires the presence of thermal noise in viscous fluids. The time and length scales of heavy-ion collisions are small enough so that the thermal noise can have a measurable effect on observables. Thermal noise is included in numerical simulations of high-energy lead-lead collisions, increasing average values of the momentum eccentricity and contributing to its event-by-event fluctuations.