Possible evidences for physics beyond ΛCDM from DESI DR2 data

We analyze DESI DR2 data with a model-independent method and find that: (a) the expansion of the universe may speed up with a confidence level more than 2.3 [Formula: see text] at redshift [Formula: see text]; (b) the expansion of the universe may speed down with a confidence level greater than 1.7 [Formula: see text] at redshift [Formula: see text]; (c) [Formula: see text] with confidence level exceeding 1.6 [Formula: see text] at redshift [Formula: see text].

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Publication Details

Journal
Modern Physics Letters A
Published
2026-02-05
DOI
https://doi.org/10.1142/s0217732326500434
Primary Topic
Cosmology and Gravitation Theories
Type
article
Field-Weighted Citation Impact
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article

Possible evidences for physics beyond ΛCDM from DESI DR2 data

Rong-Jia Yang
Modern Physics Letters A
Cosmology and Gravitation Theories
article

Possible evidences for physics beyond ΛCDM from DESI DR2 data

Rong-Jia Yang
article en

Abstract

We analyze DESI DR2 data with a model-independent method and find that: (a) the expansion of the universe may speed up with a confidence level more than 2.3 [Formula: see text] at redshift [Formula: see text]; (b) the expansion of the universe may speed down with a confidence level greater than 1.7 [Formula: see text] at redshift [Formula: see text]; (c) [Formula: see text] with confidence level exceeding 1.6 [Formula: see text] at redshift [Formula: see text].

Modern Physics Letters AVol. 41(10)
Hebei University (CN)
Openalex Percentile: Top 62%
Cosmology and Gravitation Theories
DOISourceOpenAlex
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Possible evidences for physics beyond ΛCDM from DESI DR2 data — Rong-Jia Yang · Modern Physics Letters A (2026) | TGRS Research Map | TGRS