Entropy production in pp and Pb-Pb collisions at energies available at the CERN Large Hadron Collider
We use experimentally measured identified particle spectra and Hanbury Brown-Twiss radii to determine the entropy per unit rapidity dS/dy produced in √s=7TeV pp and √sNN=2.76TeV Pb-Pb collisions. We find that dS/dy=11335±1188 in 0%-10% Pb-Pb, dS/dy=135.7±17.9 in high-multiplicity pp, and dS/dy=37.8±...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
4 December 2019
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| In: |
Physical review
Year: 2019, Volume: 100, Issue: 6 |
| ISSN: | 2469-9993 |
| DOI: | 10.1103/PhysRevC.100.064903 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1103/PhysRevC.100.064903 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevC.100.064903 
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| Author Notes: | Patrick Hanus, Klaus Reygers, and Aleksas Mazeliauskas |
| Summary: | We use experimentally measured identified particle spectra and Hanbury Brown-Twiss radii to determine the entropy per unit rapidity dS/dy produced in √s=7TeV pp and √sNN=2.76TeV Pb-Pb collisions. We find that dS/dy=11335±1188 in 0%-10% Pb-Pb, dS/dy=135.7±17.9 in high-multiplicity pp, and dS/dy=37.8±3.7 in minimum bias pp collisions and compare the corresponding entropy per charged particle (dS/dy)/(dNch/dy) to predictions of statistical models. Finally, we use the quantum chromodynamics kinetic theory pre-equilibrium and viscous hydrodynamics to model entropy production in the collision and reconstruct the average temperature profile at τ0≈1fm/c for high-multiplicity pp and Pb-Pb collisions. |
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| Item Description: | Gesehen am 13.01.2020 Im Titel ist "pp" kursiv geschrieben |
| Physical Description: | Online Resource |
| ISSN: | 2469-9993 |
| DOI: | 10.1103/PhysRevC.100.064903 |