Correlation between mean transverse momentum and anisotropic flow in heavy-ion collisions

Autor(es)

Giacalone, Giuliano ; Gardim, Fernando G. ; Noronha-Hostler, Jacquelyn ; Ollitrault, Jean-Yves

• Tipo de documento: Artigo Científico
• Fonte: PHYSICAL REVIEW C; v. 103, n. 2, p. 6-pg., 2021-02-18.

Resumo

The correlation between the mean transverse momentum of outgoing particles, < p(t)>, and the magnitude of anisotropic flow, v(n), has recently been measured in Pb + Pb collisions at the CERN Large Hadron Collider, as a function of the collision centrality. We confirm the previous observation that event-by-event hydrodynamics predicts a correlation between v(n) and < p(t)> that is similar to that measured in data. We show that the magnitude of this correlation can be directly predicted from the initial condition of the hydrodynamic calculation, for n = 2, 3, if one replaces v(n) by the corresponding initial-state anisotropy, epsilon(n), and < p(t)> by the total energy per unit rapidity of the fluid at the beginning of the hydrodynamic expansion. (AU)

• Processo FAPESP: 18/24720-6 - Exploração do diagrama de fase da QCD
• Beneficiário: Frédérique Marie Brigitte Sylvie Grassi
• Modalidade de apoio: Auxílio à Pesquisa - Temático