Are There Top Quarks In Superdense Hybrid Stars?

It is examined whether primordial top quarks from the Big Bang could survive under natural conditions till present days. Hybrid quark-neutron stars, with dense enough core to maintain the existence of top quarks, is discussed. In this paper only final states are investigated. Zero temperature quark-lepton matter is modelled as as a gas of non-interacting particles. Local charge neutrality has been assumed in order to avoid volume interactions which would not make thermodynamical treatment possible.