Abstract:
"A phase transition from quark-gluon plasma to hadronic matter may have
ocurred in the early universe when the universe was about 10 ~sec old and
the temperature was about 100-200 MeV. Is there any relic from that
microsecond epoch of the early universe which can survive and be present
in the universe today? This question is discussed with special reference to
the question of survivability of ""quark nuggets"", a possible kind of relic
that could be formed if the transition from quark-gluon plasma to hadrons
was a ""first-order phase transition"
