Fluctuations of conserved charges, chiral-spin symmetry, and deconfinement in an SU(2)color subgroup of SU(3)color above Tc

Above a pseudocritical temperature of chiral symmetry restoration Tc, the energy and the pressure are very far from the quark-gluon-plasma limit (i.e., ideal gas of free quarks and gluons). At the same time, very soon above Tc, fluctuations of conserved charges behave as if quarks were free particles. Within the Tc − 3Tc interval, a chiral-spin symmetry emerges in QCD which is not consistent with free quarks and suggests that degrees of freedom are chirally symmetric quarks bound into the color-singlet objects by the chromoelectric field. Here we analyze temporal and spatial correlators in this interval and demonstrate that they indicate simultaneously the chiral-spin symmetry as well as the absence of the interquark interactions in channels constrained by a current conservation. The latter channels are responsible for both fluctuations of conserved charges and for dileptons. Assuming that an S U(2)color subgroup of SU(3)color is deconfined soon above Tc but confinement persists in SU(3)color / SU(2)color in the interval Tc − 3Tc, we are able to reconcile all empirical facts listed above.