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A consistent interpretation of the Karmen anomaly

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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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J.-M. Levy, F. Vannucci (Laboratoire de Physique Nucleaire et de Hautes Energies, Paris, France)

High Energy Physics - Phenomenology · Submitted 20 Mar 2000

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

The authors' main claim The Karmen anomaly can be interpreted as being due to a heavy neutrino of mass around 137 MeV produced in $\pi_{e 2}$ decays.

how it is stated · hedged possibility 0.80 read the record →

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arXiv IDhep-ph/0003194 (version 1)
Pith IDSTT647GL, Pith's permanent record of this paper and its review
CitationFrance), F. Vannucci (Laboratoire de Physique Nucleaire et de Hautes Energies, J.-M. Levy, Paris. "A consistent interpretation of the Karmen anomaly." arXiv:hep-ph/0003194 (2000). https://pith.science/paper/STT647GL
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, 2,244 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.24 · human participants 0.02 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.92 · compares with prior results 0.28 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

The Karmen anomaly can be interpreted as being due to a heavy neutrino of mass around 137 MeV produced in $\pi_{e 2}$ decays. This interpretation is consistent with the present limits on the couplings of such an object.

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 The Karmen anomaly can be interpreted as being due to a heavy neutrino of mass around 137 MeV produced in $\pi_{e 2}$ decays. interpretation 0.95 0.32 0.85 hedged possibility 0.80
s1 This interpretation is consistent with the present limits on the couplings of such an object. interpretation 0.55 0.31 0.12 hedged possibility 0.86

What kind of paper the classifier reports this is: theoretical result 0.57 · evidence from argument 0.74.

What was examined, and what was not

sources read
  • arXiv listing abstract v1
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

The Karmen anomaly can be interpreted as being due to a heavy neutrino of mass around 137 MeV produced in $\pi_{e 2}$ decays. This interpretation is consistent with the present limits on the couplings of such an object.

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