Torsion, Dirac Field, Dark Matter and Dark Radiation

Details Torsion, Dirac Field, Dark Matter and Dark Radiation Torsion, Dirac Field, Dark Matter and Dark Radiation

2006-03-31

arxiv.org/abs/gr-qc/0603134v2

Int.J.Mod.Phys. A22 (2007) 835-850

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

The role of torsion and a scalar field $\phi$ in gravitation, especially, in the presence of a Dirac field in the background of a particular class of the Riemann-Cartan geometry is considered here. Recently, a Lagrangian density with Lagrange multipliers has been proposed by the author which has been obtained by picking some particular terms from the SO(4,1) Pontryagin density, where the scalar field $\phi$ causes the de Sitter connection to have the proper dimension of a gauge field. In this article the scalar field has been linked to the dimension of the Dirac field. Here we get the field equations for the Dirac field and the scalar field in such a way that both of them appear to be mutually non-interacting. In this scenario the scalar field appears to be a natural candidate for the dark matter and the dark radiation.

Affiliated with

Also associated with

No associations

Rating

Torsion, Dirac Field, Dark Matter and Dark Radiation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Torsion, Dirac Field, Dark Matter and Dark Radiation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torsion, Dirac Field, Dark Matter and Dark Radiation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-332378