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Automated next-to-leading order predictions for new physics at the LHC: the case of colored scalar pair production
High Energy Physics - Phenomenology · Submitted 17 Dec 2014
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We present for the first time the full automation of collider predictions matched with parton showers at the next-to-leading accuracy in QCD within non-trivial extensions of the Standard Model.
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The abstract, sentence by sentence
We present for the first time the full automation of collider predictions matched with parton showers at the next-to-leading accuracy in QCD within non-trivial extensions of the Standard Model. The sole inputs required from the user are the model Lagrangian and the process of interest. As an application of the above, we explore scenarios beyond the Standard Model where new colored scalar particles can be pair produced in hadron collisions. Using simplified models to describe the new field interactions with the Standard Model, we present precision predictions for the LHC within the MadGraph5 aMC@NLO framework.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present for the first time the full automation of collider predictions matched with parton showers at the next-to-leading accuracy in QCD within non-trivial extensions of the Standard Model. | contribution 1.00 | 0.95 | 0.61 | asserted 1.00 |
| s1 | The sole inputs required from the user are the model Lagrangian and the process of interest. | method 0.81 | 0.64 | 0.09 | asserted 1.00 |
| s2 | As an application of the above, we explore scenarios beyond the Standard Model where new colored scalar particles can be pair produced in hadron collisions. | contribution 0.96 | 0.87 | 0.10 | asserted 0.93 |
| s3 | Using simplified models to describe the new field interactions with the Standard Model, we present precision predictions for the LHC within the MadGraph5 aMC@NLO framework. | method 0.78 | 0.93 | 0.16 | asserted 1.00 |
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The paper
Original abstract
We present for the first time the full automation of collider predictions matched with parton showers at the next-to-leading accuracy in QCD within non-trivial extensions of the Standard Model. The sole inputs required from the user are the model Lagrangian and the process of interest. As an application of the above, we explore scenarios beyond the Standard Model where new colored scalar particles can be pair produced in hadron collisions. Using simplified models to describe the new field interactions with the Standard Model, we present precision predictions for the LHC within the MadGraph5 aMC@NLO framework.
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References
How the literature uses it
23 arXiv papers cite this in 37 sentences
Papers citing it · 19 sentences without a confident label
Uses its method or tool 5 papers
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While this offers a possibility to test any given new physics model against the results of this particular search, we focus on the pseudoscalar sgluon case and use state-of-the-art Monte Carlo simulations [ref] to constrain the associated four-top signal.
Cornering sgluons with four-top-quark events · Introduction · 0.99
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Signal events were generated using and an NLO capable UFO [ref] model generated with [ref] .
Analysis of the R-symmetric supersymmetric models including quantum corrections · Signal · 1.00
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Our event generation has been performed at leading order with MadGraph5_aMCNLO [ref] starting from a customised version of the implementation of coloured scalar pair production presented in [ref] and utilises NNPDF2.3 parton distribution functions [ref] .
Stop searches in flavourful supersymmetry · Event generation · 1.00
Uses its data or values 2 papers
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Concerning the simplified models examined in our study, a QCD $K$-factor close to $2$ was numerically obtained for the $pp→$ process [ref] , while there is no similar result for the rest of the new physics scenarios considered here.
Top-philic heavy resonances in four-top final states and their EFT interpretation · Generalities · 0.84
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A recent search of sgluon pair production by ATLAS using $[36.7]fb^-1$ of $√(s)=[13]TeV$ data [ref] , whose prediction was obtained from the NLO computation in Ref. [ref] for $√(s)=8$ TeV (rescaled to $[13]TeV$ according to Ref. [ref] ), sets a bound on the octet scalar exotic pions given by [equation] From Eqs. ([ref]) and ([ref]), this translates into [equation] For model I, an alternative bound may be inferred from the limits on color-triplet scalars, which can be produced via their color interactions.
Color Unifed Dynamical Axion · Introduction · 0.90
Compares with it 4 papers
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ATLAS obtained these limits by interpreting their results for a model of real color-octet scalars assuming a pair production cross section very close to ours ( [ref] ; viz.
Exploring color-octet scalar parameter space in minimal $R$-symmetric models · Revisiting collider constraints in realistic scenarios · 0.87
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Our results are consistent with those of [ref] , which were also obtained using the $FeynRules →MG5aMC$ chain; and with those of [ref] , which were computed in Mathematica$^$ version 12.0.
$t\bar{t}t\bar{t}$ signatures through the lens of color-octet scalars · Fitting the $tt̅tt̅$ excess today and in the future · 1.00
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To cross-check the result, final numbers where compared with 5-flavor version of the sgluon model described in Ref. [ref] .
Analysis of the R-symmetric supersymmetric models including quantum corrections · Final results and discussion · 1.00
Cites it as background 4 papers
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Pioneering studies have been dedicated to the phenomenology of both complex [ref] and real [ref] sgluons.
Cornering sgluons with four-top-quark events · Introduction · 1.00
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Their LHC phenomenology was previously investigated in the context of R-symmetric/$𝒩=2$/Dirac gaugino SUSY models, hyper-pions in vector-like confinement gauge theories and universal extra dimensions [ref] .
Analysis of the R-symmetric supersymmetric models including quantum corrections · Introduction · 0.98
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Their LHC phenomenology was previously investigated in the context of R-symmetric/$𝒩=2$/Dirac gaugino SUSY models, hyper-pions in vector-like confinement gauge theories and universal extra dimensions [ref] .
Sgluons in the same-sign lepton searches · Introduction · 1.00
What it cites · 8 sentences without a confident label
Uses the method or tool of 9 papers
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In more detail, we make use of to implement all possible couplings of the new fields to quarks and gluons and employ the program [ref] to generate a UFO module [ref] containing, in addition to tree-level model information, the ultraviolet and $R_2$ counterterms necessary whenever the loop integral numerators are computed in four dimensions, as in MadLoop [ref] that uses the Ossola-Papadopoulos-Pittau (OPP) reduction formalism [ref] .
Automatic evaluation of UV and R2 terms for beyond the Standard Model Lagrangians: a proof-of-principle · Introduction · 1.00
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In more detail, we make use of to implement all possible couplings of the new fields to quarks and gluons and employ the program [ref] to generate a UFO module [ref] containing, in addition to tree-level model information, the ultraviolet and $R_2$ counterterms necessary whenever the loop integral numerators are computed in four dimensions, as in MadLoop [ref] that uses the Ossola-Papadopoulos-Pittau (OPP) reduction formalism [ref] .
Automation of one-loop QCD corrections · Introduction · 1.00
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In more detail, we make use of to implement all possible couplings of the new fields to quarks and gluons and employ the program [ref] to generate a UFO module [ref] containing, in addition to tree-level model information, the ultraviolet and $R_2$ counterterms necessary whenever the loop integral numerators are computed in four dimensions, as in MadLoop [ref] that uses the Ossola-Papadopoulos-Pittau (OPP) reduction formalism [ref] .
UFO - The Universal FeynRules Output · Introduction · 1.00
Compares with 1 paper
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The results of Tab. [ref] have been confronted to predictions obtained with the public packages Prospino [ref] (stop pair production) and MadGolem [ref] (sgluon pair production).
Sgluon Pair Production to Next-to-Leading Order · LHC phenomenology · 0.99
Cites as background 1 paper
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Many LHC analyses are indeed seeking for the scalar partners of the Standard Model quarks (the squarks) and gluons (the sgluons) that are predicted, for instance, in minimal [ref] and non-minimal [ref] supersymmetric or in vector-like confining theories [ref] .
Vectorlike Confinement at the LHC · Introduction · 0.99
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