12-16 December 2022
GSI Helmholtzzentrum für Schwerionenforschung GmbH
Europe/Berlin timezone


Dear Participants,

To make the meeting in December fully effective (towards the envisaged writeup), we  kindly ask you to send us by December 5th the following:

1. The most recent updates of the reaction rates (Gamma) you sent in 2019 (if any).

2. Please provide in addition:
a) actual charm and bottom constituent quark masses and the binding energies (as used in the calculations of the dissociation rates) of the J/psi, psi(2S), chi_c, Y(1S,2S,3S), chi_b as a function of temperature
b) for T=200, 300, 400 MeV Gamma vs. p (not pT!) for the range 0-20 GeV/c.

3. For 5.02 TeV Pb-Pb collisions, y=0 (no nuclear effects), for Y(1S), no feed-down:
for fixed reaction rates (in own evolution model, neglecting initial formation time effects for the bound states) in the following simple parametrization for Gamma (assumed to be constant vs. momentum): linear increase from 0 at T=200 MeV to 0.2 GeV at T=600 MeV:
a) R_AA vs. Npart, pT integrated, decomposed in suppression and regeneration, if applicable
b) R_AA vs. pT for 0-10% centrality

4. Start from «realistic» initial Q-Qbar state (the one you use in your dynamical model, reported to be «point-like initial state» by many teams; use ground state in semi-classical approaches), and let this state evolve in a QGP at fixed finite temperature T. Then provide, as a function of the elapsed time t:
 a) The «survival» probability to find this Q-Qbar pair in an eigenstate of the in-medium potential; 
 b) The probability to find an eigenstate of the vacuum potential if the evolution in the QGP were terminated at time t.
If possible, these calculations should be done for both c-cbar and b-bbar systems.
Suggested parameters: pT = 0 GeV/c and pT = 5 GeV/c, both for T=0.3 GeV.

Please let us know in case you encounter any difficulty in implementing what we ask for.

The organizers