English

A stellar test of the physics of unification

Solar and Stellar Astrophysics 2015-06-05 v1 High Energy Physics - Phenomenology

Abstract

We discuss the feasibility of using solar-type main-sequence stars as probes of fundamental physics and unification. We use a simple polytropic stellar structure model and study its sensitivity to variations of the gravitational, strong and electroweak coupling constants in the context of unification scenarios. We quantify the sensitivity of the Sun's interior temperature to these variations, finding Δα/α1.3×104|\Delta\alpha/\alpha|\lesssim1.3\times10^{-4} for a 'canonical' choice of unification scenario, and discuss prospects for future improvements.

Keywords

Cite

@article{arxiv.1206.3665,
  title  = {A stellar test of the physics of unification},
  author = {J. P. P. Vieira and C. J. A. P. Martins and M. J. P. F. G. Monteiro},
  journal= {arXiv preprint arXiv:1206.3665},
  year   = {2015}
}

Comments

6 pages, 2 figures; submitted to Phys. Rev. D