High Energy Physics - Phenomenology · arXiv:1401.1284 v3 · submitted 7 Jan 2014
Production of Stoponium at the LHC
The paper says
“For our choices of SUSY model parameters, the stoponium is not detectable above Standard Model backgrounds in \gamma \gamma or ZZ at 8 TeV, but will be visible with 400 fb^(-1) of accumulated data if its mass is below 500 GeV when the LHC runs at 14 TeV.”
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Abstract
Although the Large Hadron Collider (LHC) has not observed supersymmetric (SUSY) partners of the Standard Model particles, their existence is not ruled out yet. One recently explored scenario in which there are light SUSY partners that have evaded current bounds from the LHC is that of a light long-lived stop quark. In this paper we consider light stop pair production at the LHC when the stop mass is between 200 and 400 GeV. If the stops are long-lived they can form a bound state, stoponium, which then undergoes two-body decays to Standard Model particles. By considering the near-threshold production of such a pair through the gluon-gluon fusion process and taking into account the strong Coulombic interactions responsible for the formation of this bound state, we obtain factorization theorems for the stop pair inclusive and differential production cross sections. We also perform a resummation of large threshold logarithms up to next-to-next-to-leading logarithmic accuracy using well-established renormalization group equations in an effective field theory methodology. These results are used to calculate the invariant mass distributions of two photons or two Z bosons coming from the decay of the stoponium at the LHC. For our choices of SUSY model parameters, the stoponium is not detectable above Standard Model backgrounds in \gamma \gamma or ZZ at 8 TeV, but will be visible with 400 fb^(-1) of accumulated data if its mass is below 500 GeV when the LHC runs at 14 TeV.
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abstract compiled · 2026-09-23 · no language-model review
How the main claim is stated: asserted 0.96
What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.91 · human participants 0.01 · controlled comparison 0.24 · randomized assignment 0.01 · states quantitative result 0.97 · compares with prior results 0.37 · mentions code or data availability 0.02
The abstract, sentence by sentence
This table labels the abstract only (arXiv listing abstract v3). The number is the probability the classifier gave the label.
| Sentence | Role | The authors' own work | States the main conclusion | Strength |
|---|---|---|---|---|
| Although the Large Hadron Collider (LHC) has not observed supersymmetric (SUSY) partners of the Standard Model particles, their existence is not ruled out yet. | background 1.00 | 0.04 | 0.02 | asserted 0.73 |
| One recently explored scenario in which there are light SUSY partners that have evaded current bounds from the LHC is that of a light long-lived stop quark. | background 0.99 | 0.05 | 0.02 | asserted 0.64 |
| In this paper we consider light stop pair production at the LHC when the stop mass is between 200 and 400 GeV. | contribution 0.98 | 0.63 | 0.02 | asserted 0.92 |
| If the stops are long-lived they can form a bound state, stoponium, which then undergoes two-body decays to Standard Model particles. | background 0.70 | 0.08 | 0.04 | hedged possibility 0.84 |
| By considering the near-threshold production of such a pair through the gluon-gluon fusion process and taking into account the strong Coulombic interactions responsible for the formation of this bound state, we obtain factorization theorems for the stop pair inclusive and differential production cross sections. | method 0.79 | 0.94 | 0.05 | asserted 1.00 |
| We also perform a resummation of large threshold logarithms up to next-to-next-to-leading logarithmic accuracy using well-established renormalization group equations in an effective field theory methodology. | method 0.96 | 0.94 | 0.03 | asserted 1.00 |
| These results are used to calculate the invariant mass distributions of two photons or two Z bosons coming from the decay of the stoponium at the LHC. | contribution 0.49 | 0.92 | 0.06 | asserted 1.00 |
| For our choices of SUSY model parameters, the stoponium is not detectable above Standard Model backgrounds in \gamma \gamma or ZZ at 8 TeV, but will be visible with 400 fb^(-1) of accumulated data if its mass is below 500 GeV when the LHC runs at 14 TeV. | result 0.95 | 0.91 | 0.84 | asserted 0.96 |
What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.75
What was examined, and what was not
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- arXiv listing abstract v3
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- full text
- figures and tables
- references and citing sentences
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- P abstract
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- S sections
- T body sentences
- C citations
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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 6,531 input tokens, $0.0003 reported.
Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. This record as JSON
Cited by 4 Pith papers
Reviewed papers on Pith that cite this one. The full citation record
- Squarkonium, diquarkonium and octetonium at the LHC and their di-photon decays hep-ph · Dec 2015
- NLO+NLL squark and gluino production cross-sections with threshold-improved parton distributions hep-ph · Oct 2015
- Revealing Compressed Stops Using High-Momentum Recoils hep-ph · Jun 2015
- Squark and gluino production cross sections in pp collisions at $\sqrt{s}$ = 13, 14, 33 and 100 TeV hep-ph · Jul 2014
How the literature uses it
15 arXiv papers cite this in 25 sentences
Papers citing it · 10 sentences without a confident label
Uses its method or tool 1 paper
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It is convenient to take these effects into account by making use of the analogues for scalar quarks of the effective field theories NRQED [ref] and NRQCD [ref] .[In Ref. [ref] , an effective field theory for stoponium systems was developed, and a resummation of threshold logarithms in the stoponium production cross section was carried out by making use of soft-collinear effective theory [ref] .
Higgs-Stoponium Mixing Near the Stop-Antistop Threshold · NRQED/NRQCD analogues for scalar quarks · 0.87
Uses its data or values 1 paper
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Detailed calculations for stoponium production and decays to $γγ$ or $ZZ$ are also presented in [ref] .
Squarkonium, diquarkonium and octetonium at the LHC and their di-photon decays · Stoponium · 0.87
Cites it as background 12 papers
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Our analysis relies on a number of previous works [ref] , notably those of Martin and collaborators [ref] .
Probing Light Stops with Stoponium · Stoponium Preliminaries · 0.91
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When meta-stable stops are produced in pair at colliders, stoponium can be formed near threshold [ref] and stoponium can decay into $gg$, $ZZ$ $γγ$ etc. through annihilation.
Squarkonium, diquarkonium and octetonium at the LHC and their di-photon decays · Stoponium · 0.85
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The supersymmetric version of this resolution to this “little hierarchy problem” has been dubbed “more minimal” or “natural” SUSY [ref] , and LHC search strategies capable of probing such a scenario have been studied extensively [ref] .
Resurgent Supersymmetry and String Theory · Introduction · 0.89
What it cites · 32 sentences without a confident label
Uses the method or tool of 10 papers
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We use the following formula for the significance $Z$ [ref] [equation] where $s$ and $b$ represent the number of signal and background events.
Asymptotic formulae for likelihood-based tests of new physics · Phenomenology · 1.00
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The SM backgrounds are generated by the MCFM package [ref] for both $pp →γγ$ and $pp →ZZ$ processes with NLO QCD correction.
Vector boson pair production at the LHC · Phenomenology · 1.00
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The solution for the Sudakov exponent $S_Γ(μ_1,μ_2)$ is expressed as [ref] [equation] where $r = α_s(μ_2)/α_s(μ_1)$.
Dynamical Threshold Enhancement and Resummation in Drell-Yan Production · Anomalous dimensions · 0.83
Uses data or values from 5 papers
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We multiply the calculated cross section for $ZZ$ by the branching fractions for decaying to leptons and the four lepton selection efficiency of $61%$ as given in Ref. [ref] .
Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions · Phenomenology · 1.00
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The soft kernel at NLO was computed in Ref. [ref] and is given by W_1,1 (z,μ) = δ(1-z) [1+α_s C_A/π (1/2 ln^2 M^2/μ^2 -π^2/4 ) ] +α_s C_A/π [2lnM^2/μ^2 1/(1-z)_+ + 4 (ln(1-z)/1-z)_+ ] , and obeys the following renormalization group (RG) equation,
Proper factorization theorems in high-energy scattering near the endpoint · Scattering Cross section for $pp →σ̃$ and resummation · 0.96
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Up to NLO the hard function $H_1,1(M,μ)$ can be extracted from Ref. [ref] H_1,1(M,μ) = H_1,1^(0) (M,μ) [ 1+ α_s (μ)/π {C_A(1+π^2/3 - 1/2 ln^2μ^2/M^2 ) - C_F (3+ π^2/4)} +…], and $C_A = N_c$ and $C_F = N_c^2-1/2N_c$.
QCD corrections to stoponium production at hadron colliders · Scattering Cross section for $pp →σ̃$ and resummation · 0.89
Compares with 2 papers
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We have confirmed that our results are analytically consistent with Refs. [ref] , and numerically consistent with Ref. [ref] .
Searching for Stoponium along with the Higgs boson · Phenomenology · 1.00
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We have confirmed that our results are analytically consistent with Refs. [ref] , and numerically consistent with Ref. [ref] .
Diphoton decays of stoponium at the Large Hadron Collider · Phenomenology · 1.00
Cites as support 1 paper
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Since $Γ_t̃ ≪m_t̃$ finite-width effects are negligible [ref] .
Finite-width effects on threshold corrections to squark and gluino production · Factorization of stop pair production near partonic threshold · 0.98
Cites as background 15 papers
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NNLL resummation in momentum space for stop pair production was recently reported in Refs. [ref] .
NNLL Momentum-Space Resummation for Stop-Pair Production at the LHC · Introduction · 0.91
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NNLL resummation in momentum space for stop pair production was recently reported in Refs. [ref] .
Approximate NNLO Predictions for the Stop-Pair Production Cross Section at the LHC · Introduction · 0.91
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See Refs. [ref] for light stop searches from stop decays to top quark and neutralino or bottom quark and chargino.
Natural MSSM after the LHC 8 TeV run · Introduction · 0.91
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