English

Gravitational baryogenesis in extended teleparallel theories of gravity

General Relativity and Quantum Cosmology 2020-06-08 v2 Cosmology and Nongalactic Astrophysics High Energy Physics - Theory

Abstract

The article communicates gravitational baryogenesis in non-minimal f(T)f(T) gravity and f(T,B)f(T,B) teleparallel gravity where TT denote the torsion scalar and BB a boundary term. These extended teleparallel theories of gravity differ from the usual f(T)f(T) gravity and therefore could provide key insights in expounding the baryon asymmetry of the universe. Furthermore, such a study also put constraints on the model parameters of these extended teleparallel theory of gravity. I present different baryogenesis interactions proportional to iT\partial_{i}T, if(T)\partial_{i}f(T), i(T+B)\partial_{i}(T+B) and if(T+B)\partial_{i}f(T+B) and find that both of these teleparallel theories of gravity yield viable estimates of the baron-to-entropy ratio compatible with observations except for the baryogenesis interaction proportional to i(T+B)\partial_{i}(T+B). It is therefore encouraging to exercise these extended theories of gravity in other cosmological areas to under their efficiency and applicability in characterizing the current state of the universe.

Keywords

Cite

@article{arxiv.2005.05534,
  title  = {Gravitational baryogenesis in extended teleparallel theories of gravity},
  author = {Snehasish Bhattacharjee},
  journal= {arXiv preprint arXiv:2005.05534},
  year   = {2020}
}

Comments

Published in Physics of the Dark Universe