Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data
International audience We reassess the viability of a cosmological model including a fourth additional sterile neutrino species that self-interacts through a new pseudoscalar degree of freedom. We perform a series of extensive analyses fitting various combinations of cosmic microwave background (CMB...
Published in: | Journal of Cosmology and Astroparticle Physics |
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Online Access: | https://hal.science/hal-03481828 https://doi.org/10.1088/1475-7516/2022/06/010 |
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ftunimontpellier:oai:HAL:hal-03481828v1 2024-05-12T08:11:17+00:00 Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data Corona, Mattia Atzori Murgia, Riccardo Cadeddu, Matteo Archidiacono, Maria Gariazzo, Stefano Giunti, Carlo Hannestad, Steen Laboratoire Univers et Particules de Montpellier (LUPM) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) 2022 https://hal.science/hal-03481828 https://doi.org/10.1088/1475-7516/2022/06/010 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/2112.00037 info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2022/06/010 hal-03481828 https://hal.science/hal-03481828 ARXIV: 2112.00037 doi:10.1088/1475-7516/2022/06/010 INSPIRE: 1982019 JCAP https://hal.science/hal-03481828 JCAP, 2022, 06 (06), pp.010. ⟨10.1088/1475-7516/2022/06/010⟩ cosmological parameters from CMBR cosmology of theories beyond the SM cosmological neutrinos particle physics - cosmology connection neutrino: sterile neutrino: sterile: mass neutrino: oscillation neutrino: flavor: 4 gravitation: lens power spectrum: primordial baryon: oscillation: acoustic satellite: Planck cosmic background radiation tension pseudoscalar cosmological model supernova: Type I anomaly multipole Hubble constant polarization pole structure self-force [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] info:eu-repo/semantics/article Journal articles 2022 ftunimontpellier https://doi.org/10.1088/1475-7516/2022/06/010 2024-04-17T15:36:29Z International audience We reassess the viability of a cosmological model including a fourth additional sterile neutrino species that self-interacts through a new pseudoscalar degree of freedom. We perform a series of extensive analyses fitting various combinations of cosmic microwave background (CMB) data from Planck, the Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT), both alone and in combination with Baryon Acoustic Oscillation (BAO) and Supernova Ia (SnIa) observations. We show that the scenario under study, although capable to resolve the Hubble tension without worsening the so-called S_8 tension about the growth of cosmic structures, is severely constrained by high-multipole polarization data from both Planck and SPT. Intriguingly, when trading Planck TE-EE data for those from ACT, we find a ≳ 3σ preference for a non-zero sterile neutrino mass, ms = 3.6$^{+1.1}$ $_{0.6}$ eV (68% C.L.), compatible with the range suggested by longstanding short-baseline (SBL) anomalies in neutrino oscillation experiments. The pseudoscalar model provides indeed a better fit to ACT data compared to ΛCDM (Δχ$^{2}$ ≃ -5, ΔAIC = -1.3), although in a combined analysis with Planck the ΛCDM model is still favoured, as the preference for a non-zero sterile neutrino mass is mostly driven by ACT favouring a higher value for the primordial spectral index ns with respect to Planck. We show that the mild tension between Planck and ACT is due to the different pattern in the TE and EE power spectra on multipoles between 350 ≲ ℓ ≲ 1000. We also check the impact of marginalizing over the gravitational lensing information in Planck data, showing that the model does not solve the CMB lensing anomaly. Future work including higher precision data from current and upcoming CMB ground-based experiments will be crucial to test these results. Article in Journal/Newspaper South pole Université de Montpellier: HAL Hubble ENVELOPE(158.317,158.317,-80.867,-80.867) South Pole Journal of Cosmology and Astroparticle Physics 2022 06 010 |
institution |
Open Polar |
collection |
Université de Montpellier: HAL |
op_collection_id |
ftunimontpellier |
language |
English |
topic |
cosmological parameters from CMBR cosmology of theories beyond the SM cosmological neutrinos particle physics - cosmology connection neutrino: sterile neutrino: sterile: mass neutrino: oscillation neutrino: flavor: 4 gravitation: lens power spectrum: primordial baryon: oscillation: acoustic satellite: Planck cosmic background radiation tension pseudoscalar cosmological model supernova: Type I anomaly multipole Hubble constant polarization pole structure self-force [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] |
spellingShingle |
cosmological parameters from CMBR cosmology of theories beyond the SM cosmological neutrinos particle physics - cosmology connection neutrino: sterile neutrino: sterile: mass neutrino: oscillation neutrino: flavor: 4 gravitation: lens power spectrum: primordial baryon: oscillation: acoustic satellite: Planck cosmic background radiation tension pseudoscalar cosmological model supernova: Type I anomaly multipole Hubble constant polarization pole structure self-force [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Corona, Mattia Atzori Murgia, Riccardo Cadeddu, Matteo Archidiacono, Maria Gariazzo, Stefano Giunti, Carlo Hannestad, Steen Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data |
topic_facet |
cosmological parameters from CMBR cosmology of theories beyond the SM cosmological neutrinos particle physics - cosmology connection neutrino: sterile neutrino: sterile: mass neutrino: oscillation neutrino: flavor: 4 gravitation: lens power spectrum: primordial baryon: oscillation: acoustic satellite: Planck cosmic background radiation tension pseudoscalar cosmological model supernova: Type I anomaly multipole Hubble constant polarization pole structure self-force [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] |
description |
International audience We reassess the viability of a cosmological model including a fourth additional sterile neutrino species that self-interacts through a new pseudoscalar degree of freedom. We perform a series of extensive analyses fitting various combinations of cosmic microwave background (CMB) data from Planck, the Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT), both alone and in combination with Baryon Acoustic Oscillation (BAO) and Supernova Ia (SnIa) observations. We show that the scenario under study, although capable to resolve the Hubble tension without worsening the so-called S_8 tension about the growth of cosmic structures, is severely constrained by high-multipole polarization data from both Planck and SPT. Intriguingly, when trading Planck TE-EE data for those from ACT, we find a ≳ 3σ preference for a non-zero sterile neutrino mass, ms = 3.6$^{+1.1}$ $_{0.6}$ eV (68% C.L.), compatible with the range suggested by longstanding short-baseline (SBL) anomalies in neutrino oscillation experiments. The pseudoscalar model provides indeed a better fit to ACT data compared to ΛCDM (Δχ$^{2}$ ≃ -5, ΔAIC = -1.3), although in a combined analysis with Planck the ΛCDM model is still favoured, as the preference for a non-zero sterile neutrino mass is mostly driven by ACT favouring a higher value for the primordial spectral index ns with respect to Planck. We show that the mild tension between Planck and ACT is due to the different pattern in the TE and EE power spectra on multipoles between 350 ≲ ℓ ≲ 1000. We also check the impact of marginalizing over the gravitational lensing information in Planck data, showing that the model does not solve the CMB lensing anomaly. Future work including higher precision data from current and upcoming CMB ground-based experiments will be crucial to test these results. |
author2 |
Laboratoire Univers et Particules de Montpellier (LUPM) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) |
format |
Article in Journal/Newspaper |
author |
Corona, Mattia Atzori Murgia, Riccardo Cadeddu, Matteo Archidiacono, Maria Gariazzo, Stefano Giunti, Carlo Hannestad, Steen |
author_facet |
Corona, Mattia Atzori Murgia, Riccardo Cadeddu, Matteo Archidiacono, Maria Gariazzo, Stefano Giunti, Carlo Hannestad, Steen |
author_sort |
Corona, Mattia Atzori |
title |
Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data |
title_short |
Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data |
title_full |
Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data |
title_fullStr |
Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data |
title_full_unstemmed |
Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data |
title_sort |
pseudoscalar sterile neutrino self-interactions in light of planck, spt and act data |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03481828 https://doi.org/10.1088/1475-7516/2022/06/010 |
long_lat |
ENVELOPE(158.317,158.317,-80.867,-80.867) |
geographic |
Hubble South Pole |
geographic_facet |
Hubble South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
JCAP https://hal.science/hal-03481828 JCAP, 2022, 06 (06), pp.010. ⟨10.1088/1475-7516/2022/06/010⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/2112.00037 info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2022/06/010 hal-03481828 https://hal.science/hal-03481828 ARXIV: 2112.00037 doi:10.1088/1475-7516/2022/06/010 INSPIRE: 1982019 |
op_doi |
https://doi.org/10.1088/1475-7516/2022/06/010 |
container_title |
Journal of Cosmology and Astroparticle Physics |
container_volume |
2022 |
container_issue |
06 |
container_start_page |
010 |
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1798854974763958272 |