Abstract
High-precision measurements of flow coefficients v_{n} (n = 1 - 4) for protons, deuterons and tritons relative to the first-order spectator plane have been performed in Au+Au collisions at sqrt{s_{_{{text {NN}}}}}= 2.4 GeV with the High-Acceptance Di-Electron Spectrometer (HADES) at the SIS18/GSI. Flow coefficients are studied as a function of transverse momentum p_{{text {t}}} and rapidity y_{{text {cm}}} over a large region of phase-space and for several classes of collision centrality. A clear mass hierarchy, as expected by relativistic hydrodynamics, is found for the slope of v_{1}, d v_{1}/d y^{prime }|_{y^{prime } = 0} where y^{prime } is the scaled rapidity, and for v_{2} at mid-rapidity. Scaling with the number of nucleons is observed for the p_{{text {t}}} dependence of v_{2} and v_{4} at mid-rapidity, which is indicative for nuclear coalescence as the main process responsible for light nuclei formation. v_{2} is found to scale with the initial eccentricity langle epsilon _{2} rangle , while v_{4} scales with langle epsilon _{2} rangle ^{2} and langle epsilon _{4} rangle . The multi-differential high-precision data on v_{1}, v_{2}, v_{3}, and v_{4} provides important constraints on the equation-of-state of compressed baryonic matter.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
