High Energy Physics - Phenomenology · arXiv:hep-ph/9312213 v1 · submitted 2 Dec 1993
Production and Decay of Scalar Stoponium Bound States
The paper says
“We argue that $\sigst \rightarrow \gamgam$ decays offer the best signal for stoponium production at hadron colliders.”
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Abstract
In this paper we discuss possible signatures for the production of scalar \stst\ (stoponium) bound states \sigst\ at hadron colliders, where \st\ is the lighter scalar top eigenstate. We first study the decay of \sigst; explicit expressions are given for all potentially important decay modes. If \st\ has unsuppressed two–body decays, they will always overwhelm the annihilation decays of \sigst. Among the latter, we find that usually either the gg or hh final state dominates, depending on the size of the off–diagonal entry of the stop mass matrix; h is the lighter neutral scalar Higgs boson of the minimal supersymmetric model. If \msig\ happens to be close to the mass of one of the neutral scalar Higgs bosons, QQ̄ final states dominate (Q = b or t). \ww\ and ZZ final states are subdominant. We argue that $\sigst \rightarrow \gamgam$ decays offer the best signal for stoponium production at hadron colliders. The tevatron should be able to close the light stop window left open by LEP searches, but its mass reach is limited to $\msig \leq 90$ GeV. In contrast, at the LHC one should ultimately be able to probe the region $\msig \leq 700$ GeV, if the hh partial width is not too large. We also comment on the feasibility of searching for \sigst\ production at hadron colliders in the ZZ, Zγ and \fourtau\ final states, and briefly mention \sigst\ production at \gamgam\ colliders.
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abstract compiled · 2026-09-23 · no language-model review
How the main claim is stated: asserted 0.90
What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.73 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.95 · compares with prior results 0.62 · mentions code or data availability 0.02
The abstract, sentence by sentence
This table labels the abstract only (arXiv listing abstract v1). The number is the probability the classifier gave the label.
| Sentence | Role | The authors' own work | States the main conclusion | Strength |
|---|---|---|---|---|
| In this paper we discuss possible signatures for the production of scalar \stst\ (stoponium) bound states \sigst\ at hadron colliders, where \st\ is the lighter scalar top eigenstate. | contribution 0.91 | 0.57 | 0.06 | hedged possibility 0.90 |
| We first study the decay of \sigst; explicit expressions are given for all potentially important decay modes. | contribution 0.98 | 0.92 | 0.04 | asserted 0.98 |
| If \st\ has unsuppressed two--body decays, they will always overwhelm the annihilation decays of \sigst. | result 0.96 | 0.56 | 0.08 | asserted 0.92 |
| Among the latter, we find that usually either the $gg$ or $hh$ final state dominates, depending on the size of the off--diagonal entry of the stop mass matrix; $h$ is the lighter neutral scalar Higgs boson of the minimal supersymmetric model. | result 0.99 | 0.89 | 0.06 | asserted 0.87 |
| If \msig\ happens to be close to the mass of one of the neutral scalar Higgs bosons, $Q \bar{Q}$ final states dominate ($Q=b$ or $t$). | result 1.00 | 0.74 | 0.04 | hedged possibility 0.63 |
| \ww\ and $ZZ$ final states are subdominant. | result 1.00 | 0.75 | 0.03 | asserted 1.00 |
| We argue that $\sigst \rightarrow \gamgam$ decays offer the best signal for stoponium production at hadron colliders. | interpretation 0.68 | 0.81 | 0.55 | asserted 0.90 |
| The tevatron should be able to close the light stop window left open by LEP searches, but its mass reach is limited to $\msig \leq 90$ GeV. | result 0.58 | 0.49 | 0.08 | hedged possibility 0.86 |
| In contrast, at the LHC one should ultimately be able to probe the region $\msig \leq 700$ GeV, if the $hh$ partial width is not too large. | result 0.56 | 0.57 | 0.16 | hedged possibility 0.96 |
| We also comment on the feasibility of searching for \sigst\ production at hadron colliders in the $ZZ, \ Z \gamma$ and \fourtau\ final states, and briefly mention \sigst\ production at \gamgam\ colliders. | contribution 0.69 | 0.58 | 0.05 | hedged possibility 0.48 |
What kind of paper the classifier reports this is: theoretical result 0.99 · evidence from proof or derivation 0.66
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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 7,806 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 8 Pith papers
Reviewed papers on Pith that cite this one. The full citation record
- Very Light Scalar Top Quarks at the LHC hep-ph · Dec 2012
- LHC Coverage of RPV MSSM with Light Stops hep-ph · Sep 2012
- Dark Matter Energy Deposition and Production from the Table-Top to the Cosmos hep-ph · Jul 2019
- Squarkonium, diquarkonium and octetonium at the LHC and their di-photon decays hep-ph · Dec 2015
- Opening up the compressed region of stop searches at 13 TeV LHC hep-ph · Jun 2015
- Quirks at the Tevatron and Beyond hep-ph · Jun 2011
- Diphoton decays of stoponium at the Large Hadron Collider hep-ph · Dec 2007
- Heavy quarkonium: progress, puzzles, and opportunities hep-ph · Oct 2010
How the literature uses it
12 arXiv papers cite this in 13 sentences
Papers whose main result relates to this one's
States the same result 1 paper
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The best signal for \sigst\ production at hadron colliders is probably its decay into two photons.
Scalar Stoponium · 1.00
Papers citing it · 8 sentences without a confident label
Contests it 1 paper
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Stoponium decays have been studied in detail in [ref] (note that [ref] contain certain factor-of-$2$ errors – see [ref] ).
Annihilation decays of bound states at the LHC · Squarkonium · contest 0.90
Builds on it 1 paper
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In [ref] we computed the bound state annihilation signals, at leading order and in the Coulomb approximation, for a variety of particles.[For other studies of bound state phenomenology at the LHC, see [ref] .] Here we update our work to include the results of the 8 TeV and the early 13 TeV searches by ATLAS and CMS.
Resonances from QCD bound states and the 750 GeV diphoton excess · Introduction · 0.98
Uses its data or values 1 paper
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However, these decays can often be subdominant; for example, for small stop mixing, the $hh$ branching ratio is roughly 10% of that into dark glueballs [ref] .
Neutral Naturalness with Bifundamental Gluinos · Bifundamental Gluino Searches at the LHC · 0.80
Compares with it 1 paper
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Moreover, squirkonium has a close relative in supersymmetry, “stoponium”, whose decay rates have computed [ref] , and we use to cross-check our own results.
Quirks at the Tevatron and Beyond · Annihilation · 0.93
Cites it as background 1 paper
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We will now analyze to what extent the bound state signals discussed in the previous sections will be detectable at the LHC.[LHC signals of gluinonium have been also studied in [ref] and squarkonium in [ref] .] To that end, it is informative to consider the existing experimental constraints on the masses of the various UED and MSSM particles.
Distinguishing spins at the LHC using bound state signals · Detection prospects · 0.95
Challenges and discussion
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