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V-a Tests Through Leptons from Polarised Top Quarks

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M. Jeżabek, J.H. Kühn

High Energy Physics - Phenomenology · Submitted 25 Mar 1994

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

The authors' main claim The polarisation dependent part of the neutrino distribution which can be measured experimentally through the missing momentum is particularly sensitive towards deviations from the V-A structure.

how it is stated · asserted 0.99 read the record →

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arXiv IDhep-ph/9403366 (version 1)
Pith IDX2AS7K4W, Pith's permanent record of this paper and its review
CitationJ.H. K\"uhn, M. Je\.zabek. "V-a Tests Through Leptons from Polarised Top Quarks." arXiv:hep-ph/9403366 (1994). https://pith.science/paper/X2AS7K4W
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.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,506 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.87 · human participants 0.01 · controlled comparison 0.15 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.18 · mentions code or data availability 0.01.

The abstract, sentence by sentence

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

Angular-energy distributions are studied for charged leptons and neutrinos from the decays of polarised top quarks. A small admixture of V+A interactions is incorporated. The polarisation dependent part of the neutrino distribution which can be measured experimentally through the missing momentum is particularly sensitive towards deviations from the V-A structure. This result remains unaffected by QCD corrections which, however, cannot be neglected in a quantitative analysis.

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 Angular-energy distributions are studied for charged leptons and neutrinos from the decays of polarised top quarks. contribution 0.98 0.82 0.05 asserted 0.96
s1 A small admixture of V+A interactions is incorporated. method 0.72 0.65 0.04 asserted 0.98
s2 The polarisation dependent part of the neutrino distribution which can be measured experimentally through the missing momentum is particularly sensitive towards deviations from the V-A structure. result 0.89 0.77 0.74 asserted 0.99
s3 This result remains unaffected by QCD corrections which, however, cannot be neglected in a quantitative analysis. result 0.59 0.69 0.21 asserted 1.00

What kind of paper the classifier reports this is: theoretical result 0.97 · evidence from proof or derivation 0.88.

What was examined, and what was not

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not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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  • P abstract
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  • 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

Angular-energy distributions are studied for charged leptons and neutrinos from the decays of polarised top quarks. A small admixture of V+A interactions is incorporated. The polarisation dependent part of the neutrino distribution which can be measured experimentally through the missing momentum is particularly sensitive towards deviations from the V-A structure. This result remains unaffected by QCD corrections which, however, cannot be neglected in a quantitative analysis.

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References
How the literature uses it

21 arXiv papers cite this in 28 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 · 21 sentences without a confident label

Uses its data or values 2 papers
  • For the specific case of top quark decays, this feature can be related to the spin analysing power of the $W$ boson.[The spin analysing power $κ_W$ is a constant quantifying the dependence of the $W$ angular distribution on the top quark polarisation, e.g. $(1/Γ) dΓ/dcosθ= 1/2(1+ α_W P_3 cosθ)$, with $P_3 = 2 ⟨S_3 ⟩$ [ref] .] Its relatively small value, $κ_W = 0.39$ at the tree level, is due to the fact that there is not a significant dominance of amplitudes with $t̅$ spin $1/2$ or $-1/2$.

    A closer look at post-decay $t \bar t$ entanglement · Understanding $t t̅$ post-decay entanglement · 0.95

  • At tree-level, the charged lepton and $d$ quark are the best spin analyzers with $κ_ℓ^+=κ_d̅=1$, while $κ_ν_ℓ=κ_u=-0.30$ and $κ_b=-κ_W^+=-0.39$ [ref] .

    Single production of sleptons with polarized tops at the Large Hadron Collider · Top polarization and the spin density matrix · 0.98

Cites it as background 4 papers

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