Diphoton signals from colorless hidden quarkonia

Iwamoto, Sho; Lee, Gabriel; Shadmi, Yael; Ziegler, Robert

doi:10.1103/physrevd.94.015003

Cited by 9 publications

(3 citation statements)

References 46 publications

(69 reference statements)

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“…It has been appreciated for a long time that the top squark might first be identified through the decay of stoponium to γγ [59,60,61]. Pursuing these ideas, several authors have interpreted the Φ as a nonrelativistic bound state of new fermions or bosons [62,63,64,65,66,67,68]. Stoponium itself has a signal cross section about 10 times too small, but this can be overcome by assuming larger electric charge (e.g., 5/3) for the constituents.…”

Section: Bound State Of New Weakly-coupled Constituentsmentioning

confidence: 99%

Implications of the 750 GeV γγ Resonance as a Case Study for the International Linear Collider

Fujii¹,

Grojean²,

]³

et al. 2016

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If the γγ resonance at 750 GeV suggested by 2015 LHC data turns out to be a real effect, what are the implications for the physics case and upgrade path of the International Linear Collider? Whether or not the resonance is confirmed, this question provides an interesting case study testing the robustness of the ILC physics case. In this note, we address this question with two points: (1) Almost all models proposed for the new 750 GeV particle require additional new particles with electroweak couplings.The key elements of the 500 GeV ILC physics program-precision measurements of the Higgs boson, the top quark, and 4-fermion interactionswill powerfully discriminate among these models. This information will be important in conjunction with new LHC data, or alone, if the new particles accompanying the 750 GeV resonance are beyond the mass reach of the LHC. (2) Over a longer term, the energy upgrade of the ILC to 1 TeV already discussed in the ILC TDR will enable experiments in γγ and e + e − collisions to directly produce and study the 750 GeV particle from these unique initial states.

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Section: Bound State Of New Weakly-coupled Constituentsmentioning

confidence: 99%

Implications of the 750 GeV γγ Resonance as a Case Study for the International Linear Collider

Fujii¹,

Grojean²,

]³

et al. 2016

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“…[51,52]. In a different approach there are other papers devoted to the description of the composite nature of the heavier (750 GeV) Higgs boson only [53][54][55][56][57][58][59][60][61][62][63][64][65][66].…”

Section: Introductionmentioning

confidence: 99%

Fundamental scalar field with zero dimension from anomaly cancelations

Miller,

Volovik,

Zubkov

2022

Preprint

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“…It is worth mentioning, that among the theoretical papers that appeared between December, 2015 and August, 2016 there are several ones, which consider both 125 GeV boson and the hypothetical new heavier Higgs boson as composite due to the new strong interaction (see, for example, [35,36]. More papers, however, were devoted to the description of the composite nature of the heavier (750 GeV) Higgs boson only [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52]. In the present paper we concentrate on the scenario, which is based on the application of the model of [54].…”

Section: Introductionmentioning

confidence: 99%

Modified top quark condensation model with the extra heavy fermion, the 125 GeV pseudo-Goldstone boson, and the additional heavy scalar bosons

Khaidukov

Zubkov

2017

Int. J. Mod. Phys. A

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We discuss the modified top quark condensation model proposed in [54]. This construction was inspired by the top -seesaw scenario, in which the extra heavy fermion χ is added that may be paired with the top quark. Besides, this model incorporates the ideas of the Little Higgs scenario, in which the 125 GeV scalar particle appears as a Pseudo -Goldstone boson. This model admits (in addition to the 125 GeV scalar boson H) the heavier scalar excitation H ′ . We consider the region of parameters, where its mass is M H ′ ∼ 1 TeV, the width of H ′ is Γ H ′ ∼ 0.3M H ′ , while the mass of the heavy fermion is mχ ∼ 1 TeV. We find that in this model the value of the cross -section σ pp→H ′ +X→γ+γ+X for √ s = 13 TeV is essentially smaller than the present experimental upper bound. Besides, we find, that for the chosen values of parameters there should exist the CP -even scalar boson with mass ≈ 2mχ and very small width. In addition, the model predicts the existence of the extra neutral CP even scalar boson and the charged scalar boson with masses of the order of 1 TeV.

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Diphoton signals from colorless hidden quarkonia

Cited by 9 publications

References 46 publications

Implications of the 750 GeV γγ Resonance as a Case Study for the International Linear Collider

Implications of the 750 GeV γγ Resonance as a Case Study for the International Linear Collider

Fundamental scalar field with zero dimension from anomaly cancelations

Modified top quark condensation model with the extra heavy fermion, the 125 GeV pseudo-Goldstone boson, and the additional heavy scalar bosons

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