Inflationary potential as seen from different angles: model compatibility from multiple CMB missions
The cosmic microwave background (CMB) temperature and polarization anisotropies, as observed by independent astronomical missions such as WMAP, Planck, and most recently the Atacama Cosmology Telescope and the South Pole Telescope have played a vital role in accurately constraining cosmological theo...
Published in: | Journal of Cosmology and Astroparticle Physics |
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Online Access: | http://hdl.handle.net/2117/395453 https://arxiv.org/abs/2305.15378 https://doi.org/10.1088/1475-7516/2023/09/019 |
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ftupcatalunyair:oai:upcommons.upc.edu:2117/395453 2024-09-15T18:36:53+00:00 Inflationary potential as seen from different angles: model compatibility from multiple CMB missions Giarè, William Pan, Supriya Di Valentino, Eleonora Yang, Weiqiang Haro Cases, Jaume Melchiorri, Alessandro Universitat Politècnica de Catalunya. Departament de Matemàtiques 2023-09 application/pdf http://hdl.handle.net/2117/395453 https://arxiv.org/abs/2305.15378 https://doi.org/10.1088/1475-7516/2023/09/019 eng eng IOP Publishing https://iopscience.iop.org/article/10.1088/1475-7516/2023/09/019 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/ PID2021-123903NB-I00/ES//Ecuaciones en Derivadas Parciales: problemas de reacción-difusión, integro-diferenciales, y de la física matemática Giarè, W. [et al.]. Inflationary potential as seen from different angles: model compatibility from multiple CMB missions. "Journal of cosmology and astroparticle physics", Setembre 2023, vol. 2023, núm. 9, article 019. 1475-7516 https://arxiv.org/abs/2305.15378 http://hdl.handle.net/2117/395453 doi:10.1088/1475-7516/2023/09/019 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ Open Access Àrees temàtiques de la UPC::Física::Astronomia i astrofísica::Cosmologia i cosmogonia Cosmology Gravitational waves Inflation Inflation and CMBR theory Physics of the early universe Cosmologia Ones gravitacionals Article 2023 ftupcatalunyair https://doi.org/10.1088/1475-7516/2023/09/019 2024-07-25T10:53:09Z The cosmic microwave background (CMB) temperature and polarization anisotropies, as observed by independent astronomical missions such as WMAP, Planck, and most recently the Atacama Cosmology Telescope and the South Pole Telescope have played a vital role in accurately constraining cosmological theories and models, establishing cosmic inflation as the most widely accepted theory for describing the physics of the early Universe. However, the absence of a definitive detection of B-mode polarization and the emerging discrepancies among different CMB experiments present a challenge in determining which inflationary models best explain the observed data. In this work, we further explore this difficulty and conduct a case study by analyzing four well-known inflationary potentials in light of the latest CMB temperature and polarization anisotropy measurements and lensing data released by the Planck satellite and the Atacama Cosmology Telescope. Additionally, we incorporate B-modes polarization data from the BICEP/Keck Collaboration, as well as Baryon Acoustic Oscillations and Redshift Space Distortions measurements from BOSS DR12 and eBOSS DR16. We show that the most typical models such as Starobinsky and a-attractors are in disagreement with the Atacama Cosmology Telescope small-scale CMB measurements, particularly when combined with B-modes polarization data. On the other hand, these potentials are in perfect agreement with the Planck measurements at larger angular scales. This dichotomy makes it challenging to identify a single model or a group of models that can be universally considered as the preferred choice based on all available CMB observations. "JdH is supported by the Spanish grant PID2021-123903NB-I00 funded by MCIN/AEI/10.13039/501100011033 and by “ERDFA way of making Europe”" Peer Reviewed Postprint (published version) Article in Journal/Newspaper South pole Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge Journal of Cosmology and Astroparticle Physics 2023 09 019 |
institution |
Open Polar |
collection |
Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
op_collection_id |
ftupcatalunyair |
language |
English |
topic |
Àrees temàtiques de la UPC::Física::Astronomia i astrofísica::Cosmologia i cosmogonia Cosmology Gravitational waves Inflation Inflation and CMBR theory Physics of the early universe Cosmologia Ones gravitacionals |
spellingShingle |
Àrees temàtiques de la UPC::Física::Astronomia i astrofísica::Cosmologia i cosmogonia Cosmology Gravitational waves Inflation Inflation and CMBR theory Physics of the early universe Cosmologia Ones gravitacionals Giarè, William Pan, Supriya Di Valentino, Eleonora Yang, Weiqiang Haro Cases, Jaume Melchiorri, Alessandro Inflationary potential as seen from different angles: model compatibility from multiple CMB missions |
topic_facet |
Àrees temàtiques de la UPC::Física::Astronomia i astrofísica::Cosmologia i cosmogonia Cosmology Gravitational waves Inflation Inflation and CMBR theory Physics of the early universe Cosmologia Ones gravitacionals |
description |
The cosmic microwave background (CMB) temperature and polarization anisotropies, as observed by independent astronomical missions such as WMAP, Planck, and most recently the Atacama Cosmology Telescope and the South Pole Telescope have played a vital role in accurately constraining cosmological theories and models, establishing cosmic inflation as the most widely accepted theory for describing the physics of the early Universe. However, the absence of a definitive detection of B-mode polarization and the emerging discrepancies among different CMB experiments present a challenge in determining which inflationary models best explain the observed data. In this work, we further explore this difficulty and conduct a case study by analyzing four well-known inflationary potentials in light of the latest CMB temperature and polarization anisotropy measurements and lensing data released by the Planck satellite and the Atacama Cosmology Telescope. Additionally, we incorporate B-modes polarization data from the BICEP/Keck Collaboration, as well as Baryon Acoustic Oscillations and Redshift Space Distortions measurements from BOSS DR12 and eBOSS DR16. We show that the most typical models such as Starobinsky and a-attractors are in disagreement with the Atacama Cosmology Telescope small-scale CMB measurements, particularly when combined with B-modes polarization data. On the other hand, these potentials are in perfect agreement with the Planck measurements at larger angular scales. This dichotomy makes it challenging to identify a single model or a group of models that can be universally considered as the preferred choice based on all available CMB observations. "JdH is supported by the Spanish grant PID2021-123903NB-I00 funded by MCIN/AEI/10.13039/501100011033 and by “ERDFA way of making Europe”" Peer Reviewed Postprint (published version) |
author2 |
Universitat Politècnica de Catalunya. Departament de Matemàtiques |
format |
Article in Journal/Newspaper |
author |
Giarè, William Pan, Supriya Di Valentino, Eleonora Yang, Weiqiang Haro Cases, Jaume Melchiorri, Alessandro |
author_facet |
Giarè, William Pan, Supriya Di Valentino, Eleonora Yang, Weiqiang Haro Cases, Jaume Melchiorri, Alessandro |
author_sort |
Giarè, William |
title |
Inflationary potential as seen from different angles: model compatibility from multiple CMB missions |
title_short |
Inflationary potential as seen from different angles: model compatibility from multiple CMB missions |
title_full |
Inflationary potential as seen from different angles: model compatibility from multiple CMB missions |
title_fullStr |
Inflationary potential as seen from different angles: model compatibility from multiple CMB missions |
title_full_unstemmed |
Inflationary potential as seen from different angles: model compatibility from multiple CMB missions |
title_sort |
inflationary potential as seen from different angles: model compatibility from multiple cmb missions |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
http://hdl.handle.net/2117/395453 https://arxiv.org/abs/2305.15378 https://doi.org/10.1088/1475-7516/2023/09/019 |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://iopscience.iop.org/article/10.1088/1475-7516/2023/09/019 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/ PID2021-123903NB-I00/ES//Ecuaciones en Derivadas Parciales: problemas de reacción-difusión, integro-diferenciales, y de la física matemática Giarè, W. [et al.]. Inflationary potential as seen from different angles: model compatibility from multiple CMB missions. "Journal of cosmology and astroparticle physics", Setembre 2023, vol. 2023, núm. 9, article 019. 1475-7516 https://arxiv.org/abs/2305.15378 http://hdl.handle.net/2117/395453 doi:10.1088/1475-7516/2023/09/019 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ Open Access |
op_doi |
https://doi.org/10.1088/1475-7516/2023/09/019 |
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Journal of Cosmology and Astroparticle Physics |
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2023 |
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09 |
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