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Elucidating the production process of heavy quark bound states is a central goal in heavy-ion collisions [1]. Two central questions exist: Do bound states of heavy quarks form in the early time evolution of the glasma? If so, in which time regime can that happen? An answer requires the development of a non-perturbative treatment of the real-time-dynamics of heavy quarkonia.
To answer those questions we have developed a novel real-time formulation [2] of lattice NRQCD [3,4] to order 1/(aMq)^2 where we employ a classical statistical simulation for the early-time dynamics of the gauge fields [5].
Here we present results from a simulation of heavy quarkonium dynamics in the glasma.
By computing the time-evolution of spectral functions of heavy quarkonium channels we expect to identify the emergence of bound states and their formation time in the evolving glasma.
[1] G. Aarts et al., Eur. Phys. J. A 53 no.5, 93 (2017)
[2] A. L., A. Rothkopf (in preparation)
[3] G.P. Lepage et al., Phys.Rev. D 46, 4052 (1992)
[4] M. Berwein, N. Brambilla, S. Hwang, A. Vairo, TUM-EFT 74/15, 56 pp (2018)
[5] K. Boguslasvki, A. Kurkela, T. Lappi, J. Peuron, Phys.Rev. D98 no.1, 014006 (2018)
