TY  - JOUR
A1  - Reichert, Tom Andre
A1  - Inghirami, Gabriele
A1  - Bleicher, Marcus
T1  - A first estimate of η/s in Au+Au reactions at Elab = 1.23 AGeV
T2  - Physics Letters B
N2  - 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.
Y1  - 2021
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/70030
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-700308
SN  - 0370-2693
SN  - 1873-2445
VL  - 817
IS  - 136285
PB  - Elsevier
CY  - Amsterdam
ER  -