Speaker
Francesco Becattini
(Università di Firenze)
Description
The ambiguity in the choice of the spin tensor has an impact on the description of local thermodynamic equilibrium and, as a consequence, on the theoretical formulae for the spin polarization in relativistic nuclear collisions. In this talk, I will propose a new definition of the local equilibrium density operator which is free of this ambiguity, that is it is pseudo-gauge invariant. Phenomenological consequences are addressed.