Roles of Torsion Particles in the Very Early Universe | Zendy

S. Ogino | Zendy

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Roles of Torsion Particles in the Very Early Universe

Author(s) -

S. Ogino

Publication year - 1985

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.73.84

Subject(s) - physics , torsion (gastropod) , universe , classical mechanics , theoretical physics , thermal , coupling constant , thermalisation , astrophysics , quantum mechanics , thermodynamics , medicine , surgery

Problem of thermalization in the very early universe is discussed by taking account of interactions among Grand Unified Theoriy (GUT) particles and torsion particles which are expected in a class of extended theory of gravity. It is shown that four thermal histories of the very early universe are possible, depending on the values of the coupling constant and the mass of torsion particles. Among them, there is a history in which GUT particles are thermalized for 1017-16GeV~ T~1014GeV by torsion particles.

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