Gluon quasiparticles and the CGC density matrix

We revisit and extend the calculation of density matrix entanglement entropy a color glass condensate (CGC) by including leading saturation corrections in calculation. show that is diagonal quasiparticle basis, where it has Boltzmann form. The quasiparticles wide interval momenta behave as massless two-dimensional bosons with temperature proportional to typical semihard scale $T={Q}_{s}/\sqrt{{\ensuremath{\alpha}}_{s}{N}_{c}}$. Thus, momentum region ${Q}_{s}<k<{Q}_{s}/\sqrt{{\ensuremath{\alpha}}_{s}{N}_{c}}$ arises well-defined intermediate regime between perturbatively hard nonperturbative soft $k<{Q}_{s}$ CGC description hadronic wave function.