  In this work an update of the cosmological role and place of the chiral
tensor particles in the Universe history is provided. We discuss an extended
model with chiral tensor particles. The influence of these particles on the
early Universe evolution is studied. Namely, the increase of the Universe
expansion rate caused by the additional particles in this extended model is
calculated, their characteristic interactions with the particles of the hot
Universe plasma are studied and the corresponding times of their creation,
scattering, annihilation and decay are estimated for accepted values of their
masses and couplings, based on the recent experimental constraints. The period
of abundant presence of these particles in the Universe evolution is
determined.
