The Hubble Constant in the Axi-Higgs Universe

Leo W. H. Fung; Lingfeng Li; Tao Liu; Hoang Nhan Luu; Yu-Cheng Qiu; S. -H. Henry Tye

doi:10.1103/PhysRevResearch.5.L022059

The Hubble Constant in the Axi-Higgs Universe

Leo W. H. Fung, Lingfeng Li, Tao Liu, Hoang Nhan Luu, Yu-Cheng Qiu, S. -H. Henry Tye

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

The Λ-cold-dark-matter (ΛCDM) model provides an excellent fit to the cosmic microwave background (CMB) data. However, a statistically significant tension emerges when its determination of the Hubble constant H₀ is compared to the local distance-redshift measurements. The axi-Higgs model, which couples an ultralight axion to the Higgs field, offers a specific variation of the ΛCDM model. It relaxes the H₀ tension as well as explains the ⁷Li puzzle in big bang nucleosynthesis, the clustering S₈ tension with the weak-lensing (WL) data, and the observed isotropic cosmic birefringence in CMB. In this Letter, we demonstrate how the H₀ and S₈ tensions can be relaxed simultaneously, by correlating the axion impacts on the early and late universe. In a benchmark scenario (m = 2 × 10⁻³⁰ eV) selected for upcoming experimental tests, the analysis combining the CMB+BAO(baryon acoustic oscillation)+WL+SN data yields H₀ = 69.9 ± 1.5km/s/Mpc and S₈ = 0.8045 ±0.0096. Combining this [excluding the SN (supernovae) part] with the local distance-redshift measurements yields H₀ = 72.42 ± 0.76 km/s/Mpc, while S₈ is slightly more suppressed.

Original language	English
Article number	L022059
Number of pages	6
Journal	Physical Review Research
Volume	5
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevResearch.5.L022059
Publication status	Published - 22 Jun 2023
Externally published	Yes

Funding

We thank Luke Hart and Jens Chluba for valuable communications. This work is supported partly by the Area of Excellence under the Grant No. AoE/P-404/18 and partly by the General Research Fund under Grant No. 16305219. All grants were issued by the Research Grants Council of Hong Kong SAR.

Research Keywords

astro-ph.CO
astro-ph.GA
hep-ph
hep-th

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "The Hubble Constant in the Axi-Higgs Universe",

abstract = "The Λ-cold-dark-matter (ΛCDM) model provides an excellent fit to the cosmic microwave background (CMB) data. However, a statistically significant tension emerges when its determination of the Hubble constant H0 is compared to the local distance-redshift measurements. The axi-Higgs model, which couples an ultralight axion to the Higgs field, offers a specific variation of the ΛCDM model. It relaxes the H0 tension as well as explains the 7Li puzzle in big bang nucleosynthesis, the clustering S8 tension with the weak-lensing (WL) data, and the observed isotropic cosmic birefringence in CMB. In this Letter, we demonstrate how the H0 and S8 tensions can be relaxed simultaneously, by correlating the axion impacts on the early and late universe. In a benchmark scenario (m = 2 × 10−30 eV) selected for upcoming experimental tests, the analysis combining the CMB+BAO(baryon acoustic oscillation)+WL+SN data yields H0 = 69.9 ± 1.5km/s/Mpc and S8 = 0.8045 ±0.0096. Combining this [excluding the SN (supernovae) part] with the local distance-redshift measurements yields H0 = 72.42 ± 0.76 km/s/Mpc, while S8 is slightly more suppressed.",

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N2 - The Λ-cold-dark-matter (ΛCDM) model provides an excellent fit to the cosmic microwave background (CMB) data. However, a statistically significant tension emerges when its determination of the Hubble constant H0 is compared to the local distance-redshift measurements. The axi-Higgs model, which couples an ultralight axion to the Higgs field, offers a specific variation of the ΛCDM model. It relaxes the H0 tension as well as explains the 7Li puzzle in big bang nucleosynthesis, the clustering S8 tension with the weak-lensing (WL) data, and the observed isotropic cosmic birefringence in CMB. In this Letter, we demonstrate how the H0 and S8 tensions can be relaxed simultaneously, by correlating the axion impacts on the early and late universe. In a benchmark scenario (m = 2 × 10−30 eV) selected for upcoming experimental tests, the analysis combining the CMB+BAO(baryon acoustic oscillation)+WL+SN data yields H0 = 69.9 ± 1.5km/s/Mpc and S8 = 0.8045 ±0.0096. Combining this [excluding the SN (supernovae) part] with the local distance-redshift measurements yields H0 = 72.42 ± 0.76 km/s/Mpc, while S8 is slightly more suppressed.

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The Hubble Constant in the Axi-Higgs Universe

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