Author(s)

Andrew Walcott Beckwith

Physics Department, Chongqing University, Chongqing, China.

First of all, we will reiterate a mechanism for relic early universe gravitons. This is the precursor of the main result of this paper and involves the decay of micro black holes, with relic graviton production. For the 2^nd part of graviton physics, we invoke reacceleration of the universe. The case for a four-dimensional graviton mass (non-zero) influencing reacceleration of the universe in five dimensions is stated, with particular emphasis on whether five-dimensional geometries as given below give us new physical insights as to cosmological evolution. The final question is, can DM/DE be explained by a Kaluza Klein particle construction? i.e., the author presents a Kaluza Klein particle representation of a graviton mass with the first term to the right equal to a DM contribution and with the 2^nd term to the right being effective DE. This is the 2^nd era of DE production. Finally, we in the third part invoke the methodology of a modification of 1/r potentials, and the reacceleration of the universe as a bridge between the first and second parts of this document, in terms of the physics of DE and gravitons. This is compared with an equation of state given as a confirming basis for perhaps rationalizing a linkage between early universe production of gravitons, and then a subsequent Equation of state, for DE which may be able to predict reasons for quintessence.

“Massive” Gravitons, Entropy, Kaluza Klein, Dark Matter, Dark Energy

Beckwith, A. (2019) A Kaluza Klein Treatment of a Graviton and Deceleration Parameter Q(Z) as an Alternative to Standard DE and Its Possible Link to Standard DE Equation of State as Given by Li, Li, Wang and Wang, in 2017. Journal of High Energy Physics, Gravitation and Cosmology, 5, 208-217. doi: 10.4236/jhepgc.2019.51012.