Is there further evidence for spatial variation of fundamental constants?

Details Is there further evidence for spatial variation of fundamental constants? Is there further evidence for spatial variation of fundamental constants?

2010-09-03

arxiv.org/abs/1009.0591v1

Phys.Rev.D83:123506,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 1 figure

Scientific paper

10.1103/PhysRevD.83.123506

The detection of a spatial variation of the fine-structure constant, alpha, based on study of quasar absorption systems has recently been reported. The physics that causes this alpha-variation should have other observable manifestations, and this motivates us to look for complementary astrophysical effects. In this paper we propose a method to test whether spatial variation of fundamental constants existed during the epoch of big bang nucleosynthesis. Using existing measurements of primordial deuterium abundance we find very weak indications that such a signature might exist, but the paucity of measurements precludes any firm conclusion. We also examine existing quasar absorption spectra data that are sensitive to variation of the electron-to-proton mass ratio, mu, and x = (alpha^2 mu g_p) for spatial variation.

Affiliated with

Also associated with

No associations

Rating

Is there further evidence for spatial variation of fundamental constants? 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 Is there further evidence for spatial variation of fundamental constants?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is there further evidence for spatial variation of fundamental constants? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-684417