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Realistic Dirac Leptogenesis

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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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Hitoshi Murayama, Aaron Pierce

High Energy Physics - Phenomenology · Submitted 19 Jun 2002

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

The authors' main claim This model clearly demonstrates that, contrary to conventional wisdom, neutrinos need not be Majorana in nature in order to help explain the baryon asymmetry of the universe.

how it is stated · asserted 1.00 read the record →

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arXiv IDhep-ph/0206177 (version 2)
Pith IDZU5JQIEU, Pith's permanent record of this paper and its review
CitationAaron Pierce, Hitoshi Murayama. "Realistic Dirac Leptogenesis." arXiv:hep-ph/0206177 (2002). https://pith.science/paper/ZU5JQIEU
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, 2,949 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.08 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.03 · compares with prior results 0.83 · mentions code or data availability 0.02.

The abstract, sentence by sentence

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

We present a model of leptogenesis that preserves lepton number. The model maintains the important feature of more traditional leptogenesis scenarios: the decaying particles that provide the CP violation necessary for baryogenesis also provide the explanation for the smallness of the neutrino Yukawa couplings. This model clearly demonstrates that, contrary to conventional wisdom, neutrinos need not be Majorana in nature in order to help explain the baryon asymmetry of the universe.

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 We present a model of leptogenesis that preserves lepton number. contribution 1.00 0.92 0.18 asserted 1.00
s1 The model maintains the important feature of more traditional leptogenesis scenarios: the decaying particles that provide the CP violation necessary for baryogenesis also provide the explanation for the smallness of the neutrino Yukawa couplings. contribution 0.62 0.38 0.13 asserted 1.00
s2 This model clearly demonstrates that, contrary to conventional wisdom, neutrinos need not be Majorana in nature in order to help explain the baryon asymmetry of the universe. interpretation 0.92 0.83 0.82 asserted 1.00

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from argument 0.58.

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

We present a model of leptogenesis that preserves lepton number. The model maintains the important feature of more traditional leptogenesis scenarios: the decaying particles that provide the CP violation necessary for baryogenesis also provide the explanation for the smallness of the neutrino Yukawa couplings. This model clearly demonstrates that, contrary to conventional wisdom, neutrinos need not be Majorana in nature in order to help explain the baryon asymmetry of the universe.

Human review

How Pith checks papers → · Full audit of this paper →

References
How later papers used it

47 later papers cite it

Evidence: some. 46 of the citing papers share no author with it, and 5 of those carry a confident label from Pith's citation classifier.

Pith read 5 of the 58 citing sentences, choosing only those whose citation markers point at this paper alone, and wrote the paraphrases from them. The summary, the counts, the evidence level, the links and the quotes come from code; the summary counts the papers listed below. A later paper is listed under a label when Pith's citation classifier gives one of its sentences that label at probability 0.8 or more (0.95 for support), Pith's reading finds that the citing paper itself did it, and a second check confirms the paraphrase against the sentence. This section lists uses only. It does not list criticism or disagreement, so their absence here says nothing about how the paper has been received. Papers that share an author with this one are listed apart, under "By the same authors". A quote is the citing authors' own sentence, shown when their paper's licence is CC BY, CC BY-SA or CC0. JSON

Builds on it 1 paper

  • Presented a variant of this paper's model that achieves conditions on supersymmetry breaking parameters in the neutrino sector avoiding a late non-thermal over-production of LSPs conflicting with the required DM relic density.

    Dirac Leptogenesis in extended nMSSM (2008) · 0.92 · paraphrased: the licence does not allow quoting

Compares with it 1 of 4 papers with this label

  • Stated that, unlike this paper's extension, its own extension of the MSSM involves only superfields that are singlets under the Standard Model gauge group.

    Dirac Leptogenesis in extended nMSSM (2008) · 0.99 · paraphrased: the licence does not allow quoting

How the literature uses it

44 arXiv papers cite this in 55 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 36 sentences without a confident label

Builds on it 1 paper
  • Our aim is to present the conditions on supersymmetry breaking parameters in the neutrino sector avoiding this difficulty, and we present here a variant of the Murayama-Pierce model [ref] which achieves this goal.

    Dirac Leptogenesis in extended nMSSM · Introduction · 0.92

Compares with it 4 papers
Cites it as background 14 papers
  • In the above context, a realistic supersymmetric model for Dirac neutrino masses and leptogenesis was proposed in Ref. [ref] , and studied in detail in Refs. [ref] .

    Dirac Leptogenesis in extended nMSSM · Introduction · 0.85

  • For Dirac neutrinos, there exist essentially two variations of leptogenesis: * Neutrinogenesis [ref] : without ever breaking $B-L$, we let a new particle $σ$ decay out-of-equilibrium into $ν_R$ and left-handed leptons in such a way that a lepton asymmetry is generated in the $ν_R$ that is exactly opposite to an asymmetry in the left-handed leptons: $Δ_ν_R = - Δ_L≠0$.

    Observing Dirac neutrinos in the cosmic microwave background · Leptogenesis · 0.84

  • In the typical versions of DN mechanism [ref] , the lepton-number asymmetry is generated by heavy particle decays with a non-thermal distribution.

    Freeze-in Dirac neutrinogenesis: thermal leptonic CP asymmetry · Introduction · 0.92

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