Proca in the sky
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Author / Producer
Date
2021-03
Publication Type
Journal Article
ETH Bibliography
yes
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Abstract
The standard model of cosmology, the ΛCDM model, describes the evolution of the Universe since the Big Bang with just a few parameters, six in its basic form. Despite being the simplest model, direct late-time measurements of the Hubble constant compared with the early-universe measurements result in the so-called H0 tension. It is claimed that a late time resolution is predestined to fail when different cosmological probes are combined. In this work, we shake the ground of this belief with a very simple model. We show how, in the context of cubic vector Galileon models, the Hubble tension can naturally be relieved using a combination of CMB, BAO and SNe observations without using any prior on H0. The tension can be reduced even further by including the local measurement of the Hubble constant.
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Publication status
published
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Editor
Book title
Journal / series
Volume
2021 (3)
Pages / Article No.
32
Publisher
IOP Publishing
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
cosmological parameters from CMBR; dark energy theory; cosmology of theories beyond the SM; modified gravity
Organisational unit
09662 - Heisenberg, Lavinia (ehemalig) / Heisenberg, Lavinia (former)
Notes
Funding
179740 - Multimessenger constraints of modified gravity (SNF)