https://doi.org/10.1140/epja/s10050-021-00349-3
Regular Article - Theoretical Physics
Centrality dependence of limiting fragmentation
Institut für Theoretische Physik der Universität Heidelberg, Philosophenweg 12-16, 69120, Heidelberg, Germany
Received:
3
October
2020
Accepted:
6
January
2021
Published online:
2
February
2021
We investigate the centrality-dependent validity of the limiting-fragmentation hypothesis in relativistic heavy-ion collisions at energies reached at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). A phenomenological analysis of Au–Au and Pb–Pb collisions within a three-source relativistic diffusion model (RDM) is performed at 
and 5023 GeV using four centrality cuts at each energy. Linear and nonlinear expressions for the rapidity drift function are tested and their physical relevance is discussed. Our results are compatible with the limiting-fragmentation conjecture for the investigated centralities in the full energy range. The number of particles in the fragmentation and fireball sources are found to depend on 
logarithmically and cubic-logarithmically, respectively.
© The Author(s) 2021
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