A first estimate of η/s in Au+Au reactions at Elab = 1.23 AGeV
- The HADES experiment at GSI has recently provided data on the flow coefficients v1,..., v4 for protons in Au+Au reactions at Elab = 1.23 AGeV (or √sNN = 2.4 GeV). This data allows to estimate the shear viscosity over entropy density ratio, η/s at low energies via a coarse graining analysis of the UrQMD transport simulations of the flow harmonics in comparison to the experimental data. By this we can provide for the first time an estimate of η/s ≈ 0.65 ± 0.15 (or (8 ± 2)(4π)−1) at such low energies.
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| Author: | Tom Andre ReichertORCiDGND, Gabriele InghiramiORCiDGND, Marcus BleicherORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-700308 |
| DOI: | https://doi.org/https://doi.org/10.1016/j.physletb.2021.136285 |
| ISSN: | 0370-2693 |
| ISSN: | 1873-2445 |
| Parent Title (English): | Physics Letters B |
| Publisher: | Elsevier |
| Place of publication: | Amsterdam |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2021/04/14 |
| Date of first Publication: | 2021/04/14 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2022/09/27 |
| Volume: | 817 |
| Issue: | 136285 |
| Page Number: | 6 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung 4.0 |
