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Electroweak Baryogenesis and Dark Matter in the nMSSM

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A. Menon, D.E. Morrissey, C.E.M. Wagner

High Energy Physics - Phenomenology · Submitted 21 Apr 2004

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

The authors' main claim We demonstrate that a strong, first order electroweak phase transition, necessary for electroweak baryogenesis, may arise in regions of parameter space where the lightest neutralino provides an acceptable dark matter candidate.

how it is stated · hedged possibility 0.91 read the record →

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arXiv IDhep-ph/0404184 (version 1)
Pith IDI72YEJU5, Pith's permanent record of this paper and its review
CitationA. Menon, C.E.M. Wagner, D.E. Morrissey. "Electroweak Baryogenesis and Dark Matter in the nMSSM." arXiv:hep-ph/0404184 (2004). https://pith.science/paper/I72YEJU5
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, 5,069 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.15 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.97 · compares with prior results 0.13 · mentions code or data availability 0.02.

The abstract, sentence by sentence

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

We examine the possibility of electroweak baryogenesis and dark matter in the nMSSM, a minimal extension of the MSSM with a singlet field. This extension avoids the usual domain wall problem of the NMSSM, and also appears as the low energy theory in models of dynamical electroweak symmetry breaking with a so-called fat-Higgs boson. We demonstrate that a strong, first order electroweak phase transition, necessary for electroweak baryogenesis, may arise in regions of parameter space where the lightest neutralino provides an acceptable dark matter candidate. We investigate the parameter space in which these two properties are fulfilled and discuss the resulting phenomenology. In particular, we show that there are always two light CP-even and one light CP-odd Higgs bosons with masses smaller than about 250 GeV. Moreover, in order to obtain a realistic relic density, the lightest neutralino mass tends to be smaller than $M_Z/2$, in which case the lightest Higgs boson decays predominantly into neutralinos.

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 examine the possibility of electroweak baryogenesis and dark matter in the nMSSM, a minimal extension of the MSSM with a singlet field. contribution 0.90 0.73 0.06 hedged possibility 0.78
s1 This extension avoids the usual domain wall problem of the NMSSM, and also appears as the low energy theory in models of dynamical electroweak symmetry breaking with a so-called fat-Higgs boson. background 0.98 0.11 0.04 asserted 0.74
s2 We demonstrate that a strong, first order electroweak phase transition, necessary for electroweak baryogenesis, may arise in regions of parameter space where the lightest neutralino provides an acceptable dark matter candidate. result 0.96 0.93 0.64 hedged possibility 0.91
s3 We investigate the parameter space in which these two properties are fulfilled and discuss the resulting phenomenology. contribution 0.94 0.88 0.07 asserted 0.53
s4 In particular, we show that there are always two light CP-even and one light CP-odd Higgs bosons with masses smaller than about 250 GeV. result 1.00 0.93 0.19 asserted 1.00
s5 Moreover, in order to obtain a realistic relic density, the lightest neutralino mass tends to be smaller than $M_Z/2$, in which case the lightest Higgs boson decays predominantly into neutralinos. result 0.94 0.87 0.13 asserted 0.55

What kind of paper the classifier reports this is: theoretical result 0.96 · evidence from simulation or computation 0.87.

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

We examine the possibility of electroweak baryogenesis and dark matter in the nMSSM, a minimal extension of the MSSM with a singlet field. This extension avoids the usual domain wall problem of the NMSSM, and also appears as the low energy theory in models of dynamical electroweak symmetry breaking with a so-called fat-Higgs boson. We demonstrate that a strong, first order electroweak phase transition, necessary for electroweak baryogenesis, may arise in regions of parameter space where the lightest neutralino provides an acceptable dark matter candidate. We investigate the parameter space in which these two properties are fulfilled and discuss the resulting phenomenology. In particular, we show that there are always two light CP-even and one light CP-odd Higgs bosons with masses smaller than about 250 GeV. Moreover, in order to obtain a realistic relic density, the lightest neutralino mass tends to be smaller than $M_Z/2$, in which case the lightest Higgs boson decays predominantly into neutralinos.

Human review

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References
How later papers used it

51 later papers cite it

Evidence: substantial. 42 of the citing papers share no author with it, and 5 of those carry a confident label from Pith's citation classifier.

Pith read 16 of the 85 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

Uses its method or tool 1 of 2 papers with this label · 1 by the same authors

By the same authors

Compares with it 1 of 2 papers with this label
How the literature uses it

50 arXiv papers cite this in 84 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 · 48 sentences without a confident label

Uses its method or tool 2 papers
  • The electroweak symmetry breaking and the phase transition properties are mostly dependent on the minima of the potential, therefore we shall replace $S$ by its extreme value as a function of the Higgs boson fields: [equation] This leads to the expression [ref] [equation] where $ϕ=√(|H_u|^2+|H_d|^2)$ and $ã=λA_λsin(β) cos(β)$. $m_ϕ^2(T)=m_ϕ^2(0)+cT^2$, and $c$ is determined by the all weak scale particles that couple to the Higgs and contribute to the finite temperature potential.

    Light Dark Matter and the Electroweak Phase Transition in the NMSSM · Electroweak Phase Transition in a Simplified Model · 0.84

  • The semi-analytical approach adopted here closely follows [ref] .

    Electroweak Phase Transition in a Right-Handed Neutrino Superfield Extended NMSSM · A simplified model to understand EWPT in NMSSM+ one RHN model · 0.98

Compares with it 2 papers
Cites it as support 2 papers
  • For larger $λ$, the SM-like $h^0$ Higgs can decay predominantly into pairs of these neutralinos producing invisible Higgs decays [ref] .

    Physics searches at the LHC · Extended supersymmetric models · 0.96

  • In both cases, strong constraints from the upper bound on the (neutron) electric dipole moments have to be respected, which is possible in the nMSSM [ref] .

    The Next-to-Minimal Supersymmetric Standard Model · Electroweak baryogenesis · 0.98

Cites it as background 26 papers

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