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Enhancing the Large Hadron Collider Sensitivity to Charged and Neutral Broad Resonances of New Gauge Sectors

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Juri Fiaschi, Francesco Giuli, Francesco Hautmann, Stefano Moretti

High Energy Physics - Phenomenology · Submitted 18 Nov 2021

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

The authors' main claim We find that the sensitivity to the BSM states is greatly increased with respect to the case of base PDF sets, thereby enabling one to set more stringent limits on (or indeed discover) such new particles, both independently and in correlated searches.

how it is stated · asserted 1.00 read the record →

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arXiv ID2111.09698 (version 3)
Pith ID4IMHA2VJ, Pith's permanent record of this paper and its review
CitationFrancesco Giuli, Francesco Hautmann, Juri Fiaschi, Stefano Moretti. "Enhancing the Large Hadron Collider Sensitivity to Charged and Neutral Broad Resonances of New Gauge Sectors." arXiv:2111.09698 (2021). https://pith.science/paper/4IMHA2VJ
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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-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,671 input tokens.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.22 · human participants 0.01 · controlled comparison 0.77 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.89 · mentions code or data availability 0.03.

The abstract, sentence by sentence

arXiv listing abstract v3. Results and the main claim are underlined; .

In scenarios beyond the Standard Model (BSM) characterized by charged ($W^\prime$) or neutral ($Z^\prime$) massive gauge bosons with large width, resonant mass searches are not very effective, so that one has to exploit the tails of the mass distributions measured at the Large Hadron Collider (LHC). In this case, the LHC sensitivity to new physics signals is influenced significantly by systematic uncertainties associated with the Parton Distribution Functions (PDF), particularly in the valence quark sector relevant for the multi-TeV mass region. As a BSM framework featuring such conditions, we consider the 4-Dimensional Composite Higgs Model (4DCHM), in which multiple $W^\prime$ and $Z^\prime$ broad resonances are present, with strongly correlated properties. By using the QCD tool xFitter, we study the implications on $W^\prime$ and $Z^\prime$ searches in Drell-Yan (DY) lepton decay channels that follow from the reduction of PDF uncertainties obtained through combining high-statistics precision measurements of DY lepton-charge and forward-backward asymmetries. We find that the sensitivity to the BSM states is greatly increased with respect to the case of base PDF sets, thereby enabling one to set more stringent limits on (or indeed discover) such new particles, both independently and in correlated searches.

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 In scenarios beyond the Standard Model (BSM) characterized by charged ($W^\prime$) or neutral ($Z^\prime$) massive gauge bosons with large width, resonant mass searches are not very effective, so that one has to exploit the tails of the mass distributions measured at the Large Hadron Collider (LHC). background 1.00 0.06 0.03 asserted 0.99
s1 In this case, the LHC sensitivity to new physics signals is influenced significantly by systematic uncertainties associated with the Parton Distribution Functions (PDF), particularly in the valence quark sector relevant for the multi-TeV mass region. background 0.97 0.09 0.03 asserted 0.99
s2 As a BSM framework featuring such conditions, we consider the 4-Dimensional Composite Higgs Model (4DCHM), in which multiple $W^\prime$ and $Z^\prime$ broad resonances are present, with strongly correlated properties. method 0.51 0.26 0.03 asserted 0.97
s3 By using the QCD tool xFitter, we study the implications on $W^\prime$ and $Z^\prime$ searches in Drell-Yan (DY) lepton decay channels that follow from the reduction of PDF uncertainties obtained through combining high-statistics precision measurements of DY lepton-charge and forward-backward asymmetries. method 0.88 0.89 0.06 asserted 0.94
s4 We find that the sensitivity to the BSM states is greatly increased with respect to the case of base PDF sets, thereby enabling one to set more stringent limits on (or indeed discover) such new particles, both independently and in correlated searches. result 0.94 0.95 0.91 asserted 1.00

What kind of paper the classifier reports this is: simulation study 0.91 · evidence from simulation or computation 0.81.

What was examined, and what was not

sources read
  • arXiv listing abstract v3
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

In scenarios beyond the Standard Model (BSM) characterized by charged ($W^\prime$) or neutral ($Z^\prime$) massive gauge bosons with large width, resonant mass searches are not very effective, so that one has to exploit the tails of the mass distributions measured at the Large Hadron Collider (LHC). In this case, the LHC sensitivity to new physics signals is influenced significantly by systematic uncertainties associated with the Parton Distribution Functions (PDF), particularly in the valence quark sector relevant for the multi-TeV mass region. As a BSM framework featuring such conditions, we consider the 4-Dimensional Composite Higgs Model (4DCHM), in which multiple $W^\prime$ and $Z^\prime$ broad resonances are present, with strongly correlated properties. By using the QCD tool xFitter, we study the implications on $W^\prime$ and $Z^\prime$ searches in Drell-Yan (DY) lepton decay channels that follow from the reduction of PDF uncertainties obtained through combining high-statistics precision measurements of DY lepton-charge and forward-backward asymmetries. We find that the sensitivity to the BSM states is greatly increased with respect to the case of base PDF sets, thereby enabling one to set more stringent limits on (or indeed discover) such new particles, both independently and in correlated searches.

Human review

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How the literature uses it

9 arXiv papers cite this in 16 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 whose main result relates to this one's

Found among the papers closest to this one by title and main claim. Pith's classifier compared each pair's main results and a second model family confirmed the relation; checked against two further families, shown conflicts agreed 118 times in 120 and shown same results 218 times in 239. The quoted sentence is the other paper's main claim.

States the same result 1 paper

Papers citing it · 14 sentences without a confident label

Uses its data or values 1 paper
Cites it as support 1 paper

What it cites · 45 sentences without a confident label

Uses the method or tool of 12 papers
  • The results of this paper are obtained using the “improved PDFs" constructed according to the approach illustrated in Ref. [ref] .

    Lepton-Charge and Forward-Backward Asymmetries in Drell-Yan Processes for Precision Electroweak Measurements and New Physics Searches · PDF Profiling · 0.93

  • This is based on the following: i) exploiting DY production for NC and CC channels in the mass region near the SM vector boson peak, characterised by high statistics; ii) using the information encoded in the DY asymmetries of the NC [ref] and CC channels, associated with the SM vector boson left-handed and right-handed polarizations, to reduce quark PDF uncertainties.[The vector boson longitudinal polarization can be used to constrain gluon distributions in gluon fusion processes, see [ref] .]

    Constraining Parton Distribution Functions from Neutral Current Drell-Yan Measurements · PDF Profiling · 0.93

  • This is based on the following: i) exploiting DY production for NC and CC channels in the mass region near the SM vector boson peak, characterised by high statistics; ii) using the information encoded in the DY asymmetries of the NC [ref] and CC channels, associated with the SM vector boson left-handed and right-handed polarizations, to reduce quark PDF uncertainties.[The vector boson longitudinal polarization can be used to constrain gluon distributions in gluon fusion processes, see [ref] .]

    Neutral Current Forward-Backward Asymmetry: from $\theta_W$ to PDF Determinations · PDF Profiling · 0.93

Cites as support 6 papers
Cites as background 10 papers

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