Scalar--Tensor Theories of Gravity with \PHI Dependent Masses

Details Scalar--Tensor Theories of Gravity with \PHI Dependent Masses Scalar--Tensor Theories of Gravity with \PHI Dependent Masses

1992-04-07

arxiv.org/abs/hep-ph/9204213v1

Class.Quant.Grav.9:1371-1384,1992

Physics

High Energy Physics

High Energy Physics - Phenomenology

17pp

Scientific paper

10.1088/0264-9381/9/5/018

We study new physical phenomena and constraints in generalized scalar--tensor theories of gravity with $\Phi$--dependent masses. We investigate a scenario (which can arise in string theories) with two types of $\Phi$--dependent masses which could correspond to visible and dark matter sectors. The parameters of this theory are constrained from post--Newtonian bounds, primordial nucleosynthesis and the age of the Universe. We present a perfect fluid formalism for the dark matter sector with variable masses and find an entropy increase effect during the matter era and, in principle, a measurable effect on the motion of the halo of spiral galaxies. For the case of string effective theories, the constancy of gauge couplings provide new bounds which are orders of magnitude stronger than the previous ones.

Affiliated with

Also associated with

No associations

Rating

Scalar--Tensor Theories of Gravity with \PHI Dependent Masses 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 Scalar--Tensor Theories of Gravity with \PHI Dependent Masses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scalar--Tensor Theories of Gravity with \PHI Dependent Masses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-35265