2003/04/30 by M. Gazdzicki, M. Gaździcki, M. I. Gorenstein +2 · 5 citations
Mathematics · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Collision #Deconfinement #Entropy (arrow of time) #Equation of state #High-Energy Particle Collisions Research #Mathematical analysis #Mathematics #Monotonic function #Multiplicity (mathematics) #Nuclear matter #Nuclear physics #Nucleus #Phase transition #Physics #Quantum, superfluid, helium dynamics #Statistical physics #Thermodynamics #hep-ph
paper · pdf · doi:10.1016/j.physletb.2004.01.077
published as Phys.Lett. B585 (2004) 115-121 · revised version to be published in Phys. Lett. B
arxiv created 2004/02/16 · openalex publication_date 2004/02/27 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose a method to experimentally study the equation of state of strongly interacting matter created at the early stage of nucleus–nucleus collisions. The method exploits the relation between relative entropy and energy fluctuations and equation of state. As a measurable quantity, the ratio of properly filtered multiplicity to energy fluctuations is proposed. Within a statistical approach to the early stage of nucleus–nucleus collisions, the fluctuation ratio manifests a non-monotonic collision energy dependence with a maximum in the domain where the onset of deconfinement occurs.