Big bang nucleosynthesis constraints on the energy-momentum squared gravity: The T2 model

dc.contributor.author	Jang, Dukjae
dc.contributor.author	Gangopadhyay, Mayukh R.
dc.contributor.author	Cheoun, Myung-Ki
dc.contributor.author	Kajino, Toshitaka
dc.contributor.author	Sami, M.
dc.date.accessioned	2026-03-27T04:31:45Z
dc.date.available	2026-03-27T04:31:45Z
dc.date.issued	2025
dc.identifier.issn	24700010
dc.identifier.other	DOI 10.1103/PhysRevD.111.043525
dc.identifier.uri	http://repository.enu.kz/handle/enu/30792
dc.description.abstract	Scale-independent energy-momentum squared gravity (EMSG) allows different gravitational couplings for different types of sources and has been proven to have interesting implications in cosmology. In this paper, the big bang nucleosynthesis (BBN) formalism and the latest observational constraints on nuclear abundances are being used to put bounds on this class of modified gravity models. Using the tight constraint from BBN on the correction term in the Friedmann equation in EMSG scenario, we report the allowed deviation from the standard cosmic expansion rate.	ru
dc.language.iso	en	ru
dc.publisher	Physical Review D	ru
dc.relation.ispartofseries	Volume 111 Issue 4 Article number 043525;
dc.subject	Details about financial support for research	ru
dc.subject	including funding sources and grant numbers as provided in academic publications	ru
dc.title	Big bang nucleosynthesis constraints on the energy-momentum squared gravity: The T2 model	ru
dc.type	Article	ru