Baryon stopping as a relativistic Markov process in phase space
We reconsider baryon stopping in relativistic heavy-ion collisions in a nonequilibrium-statistical framework. The approach combines earlier formulations based on quantum chromodynamics with a relativistic diffusion model through a suitably derived fluctuation-dissipation relation, thus allowing for...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
September - November 2020
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| In: |
Physical review research
Year: 2020, Volume: 2, Issue: 3, Pages: i33409$p1-9 |
| ISSN: | 2643-1564 |
| DOI: | 10.1103/PhysRevResearch.2.033409 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevResearch.2.033409 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevResearch.2.033409 
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| Author Notes: | Johannes Hoelck and Georg Wolschin |
| Summary: | We reconsider baryon stopping in relativistic heavy-ion collisions in a nonequilibrium-statistical framework. The approach combines earlier formulations based on quantum chromodynamics with a relativistic diffusion model through a suitably derived fluctuation-dissipation relation, thus allowing for a fully time-dependent theory that is consistent with QCD. We use an existing framework for relativistic stochastic processes in spacetime that are Markovian in phase space, and adapt it to derive a Fokker-Planck equation in rapidity space, which is solved numerically. The time evolution of the net-proton distribution function in rapidity space agrees with stopping data from the CERN Super Proton Synchrotron and the BNL Relativistic Heavy Ion Collider. |
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| Item Description: | Publiziert: 14 September 2020 Gesehen am 29.09.2025 |
| Physical Description: | Online Resource |
| ISSN: | 2643-1564 |
| DOI: | 10.1103/PhysRevResearch.2.033409 |