SMuK 2021 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 27: Heavy-Ion Collisions and QCD Phases V
HK 27.6: Vortrag
Freitag, 3. September 2021, 15:30–15:45, H1
Anisotropic flow coefficients in mode-by-mode hydrodynamics: moving towards precision in heavy-ion collision phenomenology — •Giuliano Giacalone1, Federica Capellino2, Andreas Kirchner1, Eduardo Grossi3, Daniel Boness4, Stefan Floerchinger1, Andrea Dubla5, Silvia Masciocchi2,5, and Ilya Selyuzhenkov5 — 1ITP Heidelberg — 2Physikalisches Institut, Universität Heidelberg — 3Department of Physics, SUNY Stony Brook — 4Fachbereich Physik, Universität Konstanz — 5GSI Darmstadt
Anisotropic flow coefficients, vn, carry information about the transport properties of the quark-gluon plasma (QGP) formed in heavy-ion collisions, and are measured today with an amazing degree of precision at colliders. Theoretically, sophisticated models and tools of data analysis have been developed since the appearance of event-by-event (ebye) hydrodynamic simulations, but the intrinsic issue of the slowness of ebye codes remains present today, tampering with our ability of characterizing the physical properties of the QGP from experimental data. In this contribution, we overcome such an issue by means of the newly-developed FluiduM code, based on a background-fluctuation splitting of the QGP evolution, and mode-by-mode hydrodynamic equations. We show that the calculation of vn coefficients in Fluidum is faster by orders of magnitud than in standard hydro simulations. We present, thus, results for ultra-central collisions, largely inaccessible to ebye codes, where precision data has been recently collected at LHC and RHIC. These results pave the way for future theory-to-data comparisons of unprecedented quality in the context of heavy-ion collisions.