Pith Number

pith:3LXGJE2T

pith:2025:3LXGJE2THREK3UW4EM5HNR7VJ5

not attested not anchored not stored refs resolved

Constraints on Neutrino Physics from DESI DR2 BAO and DR1 Full Shape

A. Aviles, A. Brodzeller, A. Carnero Rosell, A. Cuceu, A. de la Macorra, A. de Mattia, A. Dey, A. Font-Ribera, A. J. Ross, A. Kremin, A. Leauthaud, A. Meisner, A. Menegas, A. P. Cooper, A. Whitford, A. X. Gonzalez-Morales, B. A. Weaver, B. Dey, C. Garcia-Quintero, C. Howlett, C. Lamman, C. Magneville, C. Poppett, C. Ram\'irez-P\'erez, C. Ravoux, C. S. Frenk, C. Y\`eche, C. Zhao, D. Bianchi, D. Brooks, D. Chebat, D. Gonzalez, D. Huterer, D. J. Eisenstein, D. Kirkby, D. Rabinowitz, D. Schlegel, D. Sprayberry, E. Armengaud, E. Burtin, E. Chaussidon, E. Gazta\~naga, E. Paillas, E. Sanchez, F. J. Castander, F. Prada, F. Sinigaglia, G. Gutierrez, G. Niz, G. Rossi, G. Tarl\'e, H. E. Noriega, H. Gil-Mar\'in, H. K. Herrera-Alcantar, H. Rivera-Morales, H. Seo, H. Zou (DESI Collaboration), I. P\'erez-R\`afols, J. A. Newman, J. Behera, J. Chaves-Montero, J. E. Forero-Romero, J. Mena-Fern\'andez, J. Moustakas, J. Rohlf, K. Lodha, K. Naidoo, K. S. Dawson, L. Casas, L. H. Garrison, L. Le Guillou, L. Samushia, L. Verde, M. Abdul-Karim, M. Charles, M. E. Levi, M. Herbold, M. Ishak, M. Landriau, M. Manera, M. M. Pieri, M. Rashkovetskyi, M. Schubnell, M. Vargas-Maga\~na, M. Walther, M. Wolfson, N. Deiosso, N. Palanque-Delabrouille, O. Alves, O. Lahav, P. Doel, P. Martini, P. Taylor, P. Zarrouk, Q. Li, R. Calderon, R. Canning, R. Kehoe, R. Miquel, R. Zhou, S. Ahlen, S. BenZvi, S. Brieden, S. Cole, S. Ferraro, S. Gontcho A Gontcho, S. He, S. Juneau, S. Nadathur, T. Claybaugh, T. Kisner, T. Tan, U. Andrade, V. Ruhlmann-Kleider, W. Elbers, W. J. Percival, W. L. Matthewson, W. Turner, Z. Ding

DESI DR2 BAO and DR1 full-shape data plus CMB data tighten the neutrino mass sum upper limit to 0.0642 eV at 95 percent under flat LambdaCDM.

arxiv:2503.14744 v3 · 2025-03-18 · astro-ph.CO

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\usepackage{pith}
\pithnumber{3LXGJE2THREK3UW4EM5HNR7VJ5}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Assuming the cosmological ΛCDM model and three degenerate neutrino states, we find ∑m_ν<0.0642 eV (95%) with a marginalized error of σ(∑m_ν)=0.020 eV. ... our constraints are in tension with the lower limits derived from neutrino oscillations. ... In the absence of unknown systematics, this finding could be interpreted as a hint of new physics not necessarily related to neutrinos.

C2weakest assumption

The assumption that there are no unknown systematics in the DESI BAO or full-shape measurements and that the base ΛCDM model is an adequate description without extensions; the paper itself flags this as the key caveat for interpreting the tension.

C3one line summary

DESI DR2 BAO and full-shape data plus CMB yield ∑m_ν < 0.0642 eV (95% CL) under ΛCDM, in 3σ tension with oscillation lower limits, relaxed to <0.163 eV in w0waCDM.

References

223 extracted · 223 resolved · 76 Pith anchors

[1] Origin of the anomaly We can trace the origin of the preference for negative effective neutrino masses from DESI BAO and CMB to a number of different effects [73]. A major contribution comes from the

[2] ERDF A way of making Europe, by ERDF/EU, 2024 · doi:10.13039/501100011033

[3] R. A. Alpher, J. W. Follin, and R. C. Herman, Phys. Rev. 92, 1347 (1953) 1953

[4] S. S. Gershtein and Y. B. Zel’dovich, Soviet Journal of Experimental and Theoretical Physics Letters 4, 120 (1966) 1966

[5] R. Cowsik and J. McClelland, ApJ 180, 7 (1973) 1973

Formal links

2 machine-checked theorem links

Cited by

25 papers in Pith

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Tracing Signatures of Modified Gravity in Redshift-Space Galaxy Bispectrum Multipoles: Prospects for Euclid

Receipt and verification

First computed	2026-05-17T23:38:47.084269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

daee6493533c48add2dc233a76c7f54f441a6198561bf21f7774a860443f9d76

Aliases

arxiv: 2503.14744 · arxiv_version: 2503.14744v3 · doi: 10.48550/arxiv.2503.14744 · pith_short_12: 3LXGJE2THREK · pith_short_16: 3LXGJE2THREK3UW4 · pith_short_8: 3LXGJE2T

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3LXGJE2THREK3UW4EM5HNR7VJ5 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: daee6493533c48add2dc233a76c7f54f441a6198561bf21f7774a860443f9d76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33f90f2da4e839a54162f47122243364ea2f97fe6b06251a6f4bc916fffdbdda",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-03-18T21:14:18Z",
    "title_canon_sha256": "5c49874d647e9cb827883d37f2ae5fb90af12301224c5fbcdb849d3cbef68e25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.14744",
    "kind": "arxiv",
    "version": 3
  }
}