Anisotropic escape mechanism and elliptic flow of bottomonia
Partha Pratim Bhaduri (Variable Energy Cyclotron Centre, HBNI, 1/AF Bidhan Nagar, Kolkata 700 064, India); Nicolas Borghini (Fakultät für Physik, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany); Amaresh Jaiswal (School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni-752050, India); Michael Strickland (Department of Physics, Kent State University, Kent, Ohio 44242, USA)
We study the role of anisotropic escape in generating the elliptic flow of bottomonia produced in ultrarelativistic heavy-ion collisions. We implement temperature-dependent decay widths for the various bottomonium states to calculate their survival probability when traversing through the anisotropic hot medium formed in noncentral collisions. We employ the recently developed -dimensional quasiparticle anisotropic hydrodynamic simulation to model the space-time evolution of the quark-gluon plasma. We provide a quantitative prediction for the transverse momentum dependence of bottomonium elliptic flow and the nuclear modification factor for collisions in TeV at the CERN Large Hadron Collider.
