RS resonance in di-final state production at the LHC to NLO+PS accuracy

Das, Goutam; Mathews, Prakash; Ravindran, V.; Seth, Saikat Kumar

doi:10.1007/jhep10(2014)188

Cited by 19 publications

(24 citation statements)

References 56 publications

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“…These include simplified models, in which the SM is extended by colour-triplet and octet scalar particles [73,169], both gluinos and squarks [74] or sleptons [90], as well as by vectorlike quarks [170,171], a heavy top-philic scalar [172] or a spin-2 particle [173]. In the latter spin-2 case, new physics have also been previously explored in a semi-automated framework (in the sense where the virtual matrix elements are provided externally) based on MG5 aMC [174][175][176]. Various BSM setups in which the Higgs sector differs from the SM one have been released, such as the two-Higgs-doublet model [177,178], the Georgi-Machacek model [179], the Higgs characterisation model [180][181][182][183][184], and the SM effective field theory including dimension-six operators [185].…”

Section: Simulations and Cross Section Calculations In Susymentioning

confidence: 99%

Automated simulations beyond the Standard Model: supersymmetry

Frixione

Fuks

Hirschi

et al. 2019

J. High Energ. Phys.

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The MadGraph5 aMC@NLO framework aims to automate all types of leading-and next-to-leading-order-accurate simulations for any user-defined model that stems from a renormalisable Lagrangian. In this paper, we present all of the key ingredients of such models in the context of supersymmetric theories. In order to do so, we extend the FeynRules package by giving it the possibility of dealing with different renormalisation options that are relevant to supersymmetric models. We also show how to deal with the problem posed by the presence of narrow resonances, thus generalising the so-called on-shell subtraction approaches. We extensively compare our total rate results with those of both Prospino2 and Resummino, and present illustrative applications relevant to the 13 TeV LHC, both at the total-rate and differential levels. The computer programs that we have used to obtain the predictions presented here are all publicly available. arXiv:1907.04898v1 [hep-ph] 10 Jul 2019 7 Conclusions 47 A Conventions for one-point and two-point functions 49 B The MoGRe package 50 B.1 The main method MoGRe$Renormalize and its options 50 B.2 Simplifying the procedure 51 B.3 Restrictions 52 B.4 Specifying the renormalisation scheme 52 B.5 Clearing a renormalisation scheme 52 B.6 Technical details on the functioning of the method 53 C Decoupling of heavy SUSY particles in MG5 aMC 55 -1 -which allows for the cancellation of chiral anomalies and to generate masses for all up-type and down-type particles.

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Section: Simulations and Cross Section Calculations In Susymentioning

confidence: 99%

Automated simulations beyond the Standard Model: supersymmetry

Frixione

Fuks

Hirschi

et al. 2019

J. High Energ. Phys.

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“…Often, these observables suffer from large uncertainties resulting from renormalization and factorization scales and the only remedy to this is to include higher order QCD effects to the Born contributions. The NLO QCD predictions based on fixed order as well as parton shower improved in the MadGraph5 aMC@NLO [33] framework for di-final state [34][35][36][37][38][39][40][41][42] productions in the gravity mediated models have already played important role in constraining the parameters of ADD and RS models. Next-to-next-to leading order (NNLO) corrections for the graviton production at the LHC in the threshold limit are already available [43] and attempts to improve these predictions through NNLO corrections and beyond are already underway [44].…”

Section: Jhep12(2015)084mentioning

confidence: 99%

Spin-2 form factors at three loop in QCD

Ahmed

Das

Mathews

et al. 2015

J. High Energ. Phys.

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Spin-2 fields are often candidates in physics beyond the Standard Model namely the models with extra-dimensions where spin-2 Kaluza-Klein gravitons couple to the fields of the Standard Model. Also, in the context of Higgs searches, spin-2 fields have been studied as an alternative to the scalar Higgs boson. In this article, we present the complete three loop QCD radiative corrections to the spin-2 quark-antiquark and spin-2 gluon-gluon form factors in SU(N) gauge theory with n f light flavors. These form factors contribute to both quark-antiquark and gluon-gluon initiated processes involving spin-2 particle in the hadronic reactions at the LHC. We have studied the structure of infrared singularities in these form factors up to three loop level using Sudakov integro-differential equation and found that the anomalous dimensions originating from soft and collinear regions of the loop integrals coincide with those of the electroweak vector boson and Higgs form factors confirming the universality of the infrared singularities in QCD amplitudes.

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“…NLO QCD corrections have been computed for the extra dimension models viz. ADD and RS for most of the di-final state process [28][29][30][31][32][33][34][35] and this has been extended to NLO+PS accuracy [36][37][38]. Recently, for the di-lepton production to NNLO order in QCD for the ADD model was computed [39].…”

Section: Introductionmentioning

confidence: 99%

Three loop form factors of a massive spin-2 particle with nonuniversal coupling

et al. 2017

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We investigate the interaction of spin-2 fields with those of the Standard Model in a model independent framework. We have considered interactions where the spin-2 fields couple to two sets of gauge invariant tensorial operators that are not conserved unlike the energy momentum tensor with different coupling strengths. Such interactions not only change the ultraviolet behaviour of the couplings but also expand the scope of the searches of spin-2 particles at the colliders. We present all the relevant renormalisation constants up to three loop level in QCD and also the form factors that contribute to potential observables. This sets the ground to investigate the phenomenological consequences of these interactions with spin-2 fields through more than one tensorial operator.

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RS resonance in di-final state production at the LHC to NLO+PS accuracy

Cited by 19 publications

References 56 publications

Automated simulations beyond the Standard Model: supersymmetry

Automated simulations beyond the Standard Model: supersymmetry

Spin-2 form factors at three loop in QCD

Three loop form factors of a massive spin-2 particle with nonuniversal coupling

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