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Constraining f(T,T) gravity with gravitational baryogenesis

Authors :
Sai Swagat Mishra
Sanjay Mandal
P.K. Sahoo
Source :
Physics Letters B, Vol 842, Iss , Pp 137959- (2023)
Publication Year :
2023
Publisher :
Elsevier, 2023.

Abstract

Gravitational baryogenesis is one of the mechanisms which help us to explore more about our early universe, especially baryon-anti-baryon asymmetry. As we know, modified theories of gravity are very successful in describing the present accelerated scenario of the universe. Therefore, in this letter, we aim to constrain the generalized torsion-based modified theory of gravity, namely, f(T,T) gravity with gravitational baryogenesis, where T, T are the torsion scalar, trace of the energy-momentum tensor, respectively. For this, we examine how the various Lagrangian forms of f(T,T) affect the baryogenesis. We also impose the constraints on the extra degrees of freedom induced by modified theory with the observational values of the baryon-to-entropy ratio. In addition, we further explore how more generalized gravitational baryogenesis can attribute in a physically viable and consistent way to the cosmologies of the modified theory of gravity.

Details

Language :
English
ISSN :
03702693
Volume :
842
Issue :
137959-
Database :
Directory of Open Access Journals
Journal :
Physics Letters B
Publication Type :
Academic Journal
Accession number :
edsdoj.8b4a6e95ef54720a6ecb9aa91bc0ff4
Document Type :
article
Full Text :
https://doi.org/10.1016/j.physletb.2023.137959