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Cosmological bounds on masses of neutrinos and other thermal relics

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Paper breakdownThe authors' claims, conditions and measurements, as JSON Signed receiptProof this review has not been altered
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Steen Hannestad (SDU)

High Energy Physics - Phenomenology · Submitted 9 Sep 2004

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim From WMAP, SDSS, and Lyman-alpha forest data an upper bound on the sum of neutrino masses of 0.65 eV (95% C.L.) can be derived with any assumptions about bias.

how it is stated · asserted 0.95 read the record →

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arXiv IDhep-ph/0409108 (version 2)
Pith IDZRWK73UC, Pith's permanent record of this paper and its review
CitationSteen Hannestad (SDU). "Cosmological bounds on masses of neutrinos and other thermal relics." arXiv:hep-ph/0409108 (2004). https://pith.science/paper/ZRWK73UC
Claim paper

The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

Open the compiled record

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,850 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.47 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.28 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

With the advent of precision data, cosmology has become an extremely powerful tool for probing particle physics. The prime example of this is the cosmological bound on light neutrino masses. Here I review the current status of cosmological neutrino mass bounds as well as the various uncertainties involved in deriving them. From WMAP, SDSS, and Lyman-alpha forest data an upper bound on the sum of neutrino masses of 0.65 eV (95% C.L.) can be derived with any assumptions about bias. I also present new limits on other light, thermally produced particles. For example, a hypothetical new Majorana fermion decoupling around the electroweak phase transition must have m < 5 eV.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 With the advent of precision data, cosmology has become an extremely powerful tool for probing particle physics. background 1.00 0.05 0.03 asserted 1.00
s1 The prime example of this is the cosmological bound on light neutrino masses. background 1.00 0.06 0.09 asserted 1.00
s2 Here I review the current status of cosmological neutrino mass bounds as well as the various uncertainties involved in deriving them. contribution 0.97 0.39 0.07 asserted 0.60
s3 From WMAP, SDSS, and Lyman-alpha forest data an upper bound on the sum of neutrino masses of 0.65 eV (95% C.L.) can be derived with any assumptions about bias. result 1.00 0.54 0.44 asserted 0.95
s4 I also present new limits on other light, thermally produced particles. contribution 0.99 0.89 0.08 asserted 0.98
s5 For example, a hypothetical new Majorana fermion decoupling around the electroweak phase transition must have m < 5 eV. result 0.97 0.75 0.10 asserted 0.91

What kind of paper the classifier reports this is: review 0.99 · evidence from analysis of existing data 0.93.

What was examined, and what was not

sources read
  • arXiv listing abstract v2
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
levels run
  • P abstract
not run
  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

With the advent of precision data, cosmology has become an extremely powerful tool for probing particle physics. The prime example of this is the cosmological bound on light neutrino masses. Here I review the current status of cosmological neutrino mass bounds as well as the various uncertainties involved in deriving them. From WMAP, SDSS, and Lyman-alpha forest data an upper bound on the sum of neutrino masses of 0.65 eV (95% C.L.) can be derived with any assumptions about bias. I also present new limits on other light, thermally produced particles. For example, a hypothetical new Majorana fermion decoupling around the electroweak phase transition must have m < 5 eV.

Human review

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