Quark confinement and phase transition in the early universe

摘要: Abstract In the context of hadronic phase transition in early universe, Plumer-Raha-Weiner model for quark confinement is found to limit bag constant B narrow range (170 MeV) 4 –(190 an assumed temperature 200 MeV. Within this , duration universe be ⩽0.5 μ s. The Behaviour speed sound as a function also invesrtaigatd quark-gluom plasma with zero baryon number.