Higgs pair production at the LHC in models with universal extra dimensions

Sandes, Hiroshi de; Rosenfeld, R.

doi:10.1016/j.physletb.2007.10.076

Cited by 12 publications

(4 citation statements)

References 23 publications

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“…Higgs pair production has been calculated previously in such models, and we find a discrepancy between both our full 1-loop and EFT results and the published result in [16].…”

Section: Jhep11(2015)062contrasting

confidence: 99%

Applying EFT to Higgs pair production in universal extra dimensions

Edelhäuser

Knochel

Steeger

2015

J. High Energ. Phys.

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We investigate single Higgs and Higgs pair production at the LHC in models of Universal Extra Dimensions. After calculating the relevant cross sections, we use the UED model as a testing ground for the Effective Field Theory approach to physics beyond the Standard Model. We show how the UED contributions to Higgs production can be matched to a dimension-6 operator. We then discuss the range of validity of this approach, in particular for Higgs pair production, and determine the sensitivity to the number of KK modes in the loop.

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“…Higgs pair production has been calculated previously in such models, and we find a discrepancy between both our full 1-loop and EFT results and the published result in [16].…”

Section: Jhep11(2015)062contrasting

confidence: 99%

Applying EFT to Higgs pair production in universal extra dimensions

Edelhäuser

Knochel

Steeger

2015

J. High Energ. Phys.

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“…Higgs model [10], universal extra dimensions model [11], warped extra dimensions model [12] and supersymmetry as well as LED model [13][14][15]. In addition, the Higgs boson pair production via vector boson fusion has been studied up to the QCD NNLO in the SM [16] and type-II two-Higgs-doublet model [17].…”

Section: Introductionmentioning

confidence: 99%

Double Higgs boson production and decay in Randall-Sundrum model at hadron colliders

et al. 2015

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We investigate the double Higgs production and decay at the 14 TeV LHC and 33 TeV HE-LHC in both the standard model and Randall-Sundrum (RS) model. In our calculation we consider reasonably only the contribution of the lightest two Kaluza-Klein (KK) gravitons. We present the integrated cross sections and some kinematic distributions in both models. Our results show that the RS effect in the vicinities of M HH ∼ M 1 , M 2 (the masses of the lightest two KK gravitons) or in the central Higgs rapidity region is quite significant, and can be extracted from the heavy SM background by imposing proper kinematic cuts on final particles. We also study the dependence of the cross section on the RS model parameters, the first KK graviton mass M 1 and the effective coupling c 0 , and find that the RS effect is reduced obviously with the increment of M 1 or decrement of c 0 .

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“…These production processes at LHC are very important because they will provide a way to probe the couplings of hηη and hhh, and shed light on the Higgs potential. Further, Higg-pair production at LHC may be sensitive to new physics, and it has been studied in many new physics model, such as little Higgs models [13,14], supersymmetric models [16], models of universal extra dimensions [17] and left-right twin Higgs model [18]. Note that gg(b b) → hh process has been studied in [13].…”

Section: Introductionmentioning

confidence: 99%

Pseudoscalar boson and standard model-like Higgs boson productions at the LHC in the simplest little Higgs model

Lei¹,

Han²

2010

Phys. Rev. D

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In the framework of the simplest little Higgs model (SLHM), we perform a comprehensive study for the pair productions of the pseudoscalar boson η and SM-like Higgs boson h at LHC, namely gg(bb) → ηη, gg(qq) → ηh and gg(bb) → hh. These production processes provide a way to probe the couplings between Higgs bosons. We find that the cross section of gg → ηη always dominates over that of bb → ηη. When the Higgs boson h which mediates these two processes is on-shell, their cross sections can reach several thousand f b and several hundred f b, respectively. When the intermediate state h is off-shell, those two cross sections are reduced by two orders of magnitude, respectively. The cross sections of gg → ηh and qq → ηh are about in the same order of magnitude, which can reach O(10 2 f b) for a light η boson. Besides, compared with the SM prediction, the cross section of a pair of SM-like Higgs bosons production at LHC can be enhanced sizably. Finally, we briefly discuss the observable signatures of ηη, ηh and hh at the LHC, respectively.

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Higgs pair production at the LHC in models with universal extra dimensions

Cited by 12 publications

References 23 publications

Applying EFT to Higgs pair production in universal extra dimensions

Applying EFT to Higgs pair production in universal extra dimensions

Double Higgs boson production and decay in Randall-Sundrum model at hadron colliders

Pseudoscalar boson and standard model-like Higgs boson productions at the LHC in the simplest little Higgs model

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