Evidence of the fine-structure constant in H0-tension

Modern precision measurements on Hubble expansion H(z) introduce two integral constraints on background models derived from early and late-time cosmology, based on Planck observations of the BAO and, respectively, H0, here normalized to ΛCDM. For H(z) coupled to Λ=(1−q)H2 of zero wave-number modes o...

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Autor principal:	Maurice H.P.M. van Putten
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Dark energy Cosmological parameters Physics QC1-999
Acceso en línea:	https://doaj.org/article/120a8ab49dfb47259a78a54aa4d2d0a7
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spelling	oai:doaj.org-article:120a8ab49dfb47259a78a54aa4d2d0a72021-12-04T04:32:32ZEvidence of the fine-structure constant in H0-tension0370-269310.1016/j.physletb.2021.136737https://doaj.org/article/120a8ab49dfb47259a78a54aa4d2d0a72021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321006778https://doaj.org/toc/0370-2693Modern precision measurements on Hubble expansion H(z) introduce two integral constraints on background models derived from early and late-time cosmology, based on Planck observations of the BAO and, respectively, H0, here normalized to ΛCDM. For H(z) coupled to Λ=(1−q)H2 of zero wave-number modes of cosmological spacetime with deceleration parameter q(z), we infer a coupling constant g<1 for H0 in tension with ΛCDM. Results from the Local Distance Ladder give g≃1−ξα with ξ=0.49±0.10. This result appears natural upon identifying H0-tension with breaking of T-duality in the Friedmann scale factor a(t) to the same order.Maurice H.P.M. van PuttenElsevierarticleDark energyCosmological parametersPhysicsQC1-999ENPhysics Letters B, Vol 823, Iss , Pp 136737- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Dark energy Cosmological parameters Physics QC1-999
spellingShingle	Dark energy Cosmological parameters Physics QC1-999 Maurice H.P.M. van Putten Evidence of the fine-structure constant in H0-tension
description	Modern precision measurements on Hubble expansion H(z) introduce two integral constraints on background models derived from early and late-time cosmology, based on Planck observations of the BAO and, respectively, H0, here normalized to ΛCDM. For H(z) coupled to Λ=(1−q)H2 of zero wave-number modes of cosmological spacetime with deceleration parameter q(z), we infer a coupling constant g<1 for H0 in tension with ΛCDM. Results from the Local Distance Ladder give g≃1−ξα with ξ=0.49±0.10. This result appears natural upon identifying H0-tension with breaking of T-duality in the Friedmann scale factor a(t) to the same order.
format	article
author	Maurice H.P.M. van Putten
author_facet	Maurice H.P.M. van Putten
author_sort	Maurice H.P.M. van Putten
title	Evidence of the fine-structure constant in H0-tension
title_short	Evidence of the fine-structure constant in H0-tension
title_full	Evidence of the fine-structure constant in H0-tension
title_fullStr	Evidence of the fine-structure constant in H0-tension
title_full_unstemmed	Evidence of the fine-structure constant in H0-tension
title_sort	evidence of the fine-structure constant in h0-tension
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/120a8ab49dfb47259a78a54aa4d2d0a7
work_keys_str_mv	AT mauricehpmvanputten evidenceofthefinestructureconstantinh0tension
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Evidence of the fine-structure constant in H0-tension

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