SMuK 2021 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 12: Heavy-Ion Collisions and QCD Phases II
HK 12.3: Vortrag
Dienstag, 31. August 2021, 17:15–17:30, H1
Simultaneous blast-wave description of spectra and elliptic flow in nucleus-nucleus collisions at √sNN= 7.7 GeV – 5.02 TeV — Klaus Reygers1, Alexander Schmah1, •Anastasia Berdnikova1, Nadine Gruenwald1, and Xu Sun2 — 1Physikalisches Institut, Ruprecht-Karls-Universitat Heidelberg, Heidelberg, Germany — 2Georgia State University, Atlanta, Georgia 30303, USA
A simultaneous blast-wave fit to particle yields and elliptic flow (v2) measured as a function of transverse momentum in Pb–Pb collisions at LHC energies is presented. A compact formula for the calculation of v2(pT) for an elliptic freeze-out surface is used which follows from the Cooper-Frye ansatz without further assumptions. Over the full available pT range, the Υ elliptic flow data is described by the prediction based on the fit to lighter particles. This prediction shows that, due to the large Υ mass, a sizable elliptic flow is only expected at transverse momenta above 10 GeV/c.