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Horizontal, Anomalous U(1) Symmetry for the More Minimal Supersymmetric Standard Model

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Ann E. Nelson, David Wright

High Energy Physics - Phenomenology · Submitted 18 Feb 1997

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

The authors' main claim We construct explicit examples with a horizontal, ``anomalous'' $U(1)$ gauge group, which, in a supersymmetric extension of the standard model, reproduce qualitative features of the fermion spectrum and CKM matrix, and suppress FCNC and proton decay rates without the imposition of global symmetries.

how it is stated · asserted 0.99 read the record →

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arXiv IDhep-ph/9702359 (version 2)
Pith IDXWUON3GH, Pith's permanent record of this paper and its review
CitationAnn E. Nelson, David Wright. "Horizontal, Anomalous U(1) Symmetry for the More Minimal Supersymmetric Standard Model." arXiv:hep-ph/9702359 (1997). https://pith.science/paper/XWUON3GH
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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.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,668 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.12 · human participants 0.01 · controlled comparison 0.13 · randomized assignment 0.01 · states quantitative result 0.07 · compares with prior results 0.56 · mentions code or data availability 0.02.

The abstract, sentence by sentence

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

We construct explicit examples with a horizontal, ``anomalous'' $U(1)$ gauge group, which, in a supersymmetric extension of the standard model, reproduce qualitative features of the fermion spectrum and CKM matrix, and suppress FCNC and proton decay rates without the imposition of global symmetries. We review the motivation for such ``more'' minimal supersymmetric standard models and their predictions for the sparticle spectrum. There is a mass hierarchy in the scalar sector which is the inverse of the fermion mass hierarchy. We show in detail why DeltaS = 2 FCNC are suppressed when compared with naive estimates for nondegenerate squarks.

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 construct explicit examples with a horizontal, ``anomalous'' $U(1)$ gauge group, which, in a supersymmetric extension of the standard model, reproduce qualitative features of the fermion spectrum and CKM matrix, and suppress FCNC and proton decay rates without the imposition of global symmetries. contribution 0.99 0.94 0.80 asserted 0.99
s1 We review the motivation for such ``more'' minimal supersymmetric standard models and their predictions for the sparticle spectrum. background 0.71 0.54 0.05 asserted 0.61
s2 There is a mass hierarchy in the scalar sector which is the inverse of the fermion mass hierarchy. result 0.99 0.51 0.10 asserted 1.00
s3 We show in detail why DeltaS = 2 FCNC are suppressed when compared with naive estimates for nondegenerate squarks. contribution 0.70 0.91 0.15 asserted 1.00

What kind of paper the classifier reports this is: theoretical result 0.99 · evidence from proof or derivation 0.94.

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  • references and citing sentences
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  • P abstract
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  • C citations
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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 construct explicit examples with a horizontal, ``anomalous'' $U(1)$ gauge group, which, in a supersymmetric extension of the standard model, reproduce qualitative features of the fermion spectrum and CKM matrix, and suppress FCNC and proton decay rates without the imposition of global symmetries. We review the motivation for such ``more'' minimal supersymmetric standard models and their predictions for the sparticle spectrum. There is a mass hierarchy in the scalar sector which is the inverse of the fermion mass hierarchy. We show in detail why DeltaS = 2 FCNC are suppressed when compared with naive estimates for nondegenerate squarks.

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References
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5 arXiv papers cite this in 5 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 · 2 sentences without a confident label

Cites it as background 3 papers
  • The models based on the FN mechanism with continuous horizontal symmetries are discussed in the references [ref] .

    The problem of flavour · Solutions of the flavour problem · 0.98

  • To give a simple example for theories of flavor leading to the second possibility, consider models where the Yukawa hierarchy is explained by the Frogatt-Nielsen mechanism, with the light generations having different charges under anomalous $U(1)$ symmetries [ref] .

    Simply Unnatural Supersymmetry · New Flavor Physics and Radiative Fermion Masses · 0.85

  • We point out as a sidenote that a different treatment of the diagonal and off-diagonal elements of the soft matrices is not unreasonable, but rather typical of flavor models inspired by the Froggatt-Nielsen mechanism [ref] , where the elements of the soft mass matrices are generated proportionally to the difference of the charges assigned to different generations (see, e.g., [ref] ).

    Muon g-2 and related phenomenology in constrained vector-like extensions of the MSSM · Boundary conditions · 0.80

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