The diphoton resonance as a gravity mediator of dark matter

Han, Chengcheng; Lee, Hyun Min; Park, Myeonghun; Sanz, Verónica

doi:10.1016/j.physletb.2016.02.040

Cited by 116 publications

(98 citation statements)

References 44 publications

(50 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An interesting speculative possibility is that a dominant or substantial width of S is into Dark Matter particles (see also [62][63][64][65][66][67][68][69]). This can be realised by identifying one of the Q…”

Section: Decays Into Dark Matter?mentioning

confidence: 99%

What is the γγ resonance at 750 GeV?

Franceschini

Giudice

Kamenik

et al. 2016

J. High Energ. Phys.

229

396

View full text Add to dashboard Cite

Run 2 LHC data show hints of a new resonance in the diphoton distribution at an invariant mass of 750 GeV. We analyse the data in terms of a new boson, extracting information on its properties and exploring theoretical interpretations. Scenarios covered include a narrow resonance and, as preliminary indications suggest, a wider resonance. If the width indications persist, the new particle is likely to belong to a strongly-interacting sector. We also show how compatibility between Run 1 and Run 2 data is improved by postulating the existence of an additional heavy particle, whose decays are possibly related to dark matter.

show abstract

Section: Decays Into Dark Matter?mentioning

confidence: 99%

What is the γγ resonance at 750 GeV?

Franceschini

Giudice

Kamenik

et al. 2016

J. High Energ. Phys.

229

396

View full text Add to dashboard Cite

show abstract

“…Under the assumption that new strong dynamics can explain a large mass hierarchy R 5 − 6, the construction of a realistic model of electroweak symmetry breaking requires to introduce many additional ingredients. It is worth bringing to the attention of the reader for example the papers in [106][107][108], where some relevant considerations pertaining to model-building and LHC phenomenology are discussed. This paper is a first step towards a future proof of principle that comparatively heavy spin-2 resonances can emerge as composite states of new strong dynamics, leaving all model-building and phenomenological issues aside.…”

Section: Jhep06(2016)114mentioning

confidence: 99%

Large mass hierarchies from strongly-coupled dynamics

Athenodorou

Bennett

Bergner

et al. 2016

J. High Energ. Phys.

View full text Add to dashboard Cite

Besides the Higgs particle discovered in 2012, with mass 125 GeV, recent LHC data show tentative signals for new resonances in diboson as well as diphoton searches at high center-of-mass energies (2 TeV and 750 GeV, respectively). If these signals are confirmed (or other new resonances are discovered at the TeV scale), the large hierarchies between masses of new bosons require a dynamical explanation. Motivated by these tentative signals of new physics, we investigate the theoretical possibility that large hierarchies in the masses of glueballs could arise dynamically in new strongly-coupled gauge theories extending the standard model of particle physics. We study lattice data on non-Abelian gauge theories in the (near-)conformal regime as well as a simple toy model in the context of gauge/gravity dualities. We focus our attention on the ratio R between the mass of the lightest spin-2 and spin-0 resonances, that for technical reasons is a particularly convenient and clean observable to study. For models in which (non-perturbative) large anomalous dimensions arise dynamically, we show indications that this mass ratio can be large, with R > 5. Moreover, our results suggest that R might be related to universal properties of the IR fixed point. Our findings provide an interesting step towards understanding large mass ratios in the non-perturbative regime of quantum field theories with (near) IR conformal behaviour.

show abstract

“…This possibility would be favoured by a large width of the resonance, as first indications seem to suggest. Another possibility is to interpret the signal in the context of extra-dimensional models [5,9,29,30,48,84,125,141,203,225,312], with the resonance being a scalar, a graviton, a dilaton, or a radion, depending on the scenario. However, some of these interpretations are in tension with the non-observation of this resonance in other channels.…”

Section: Modelsmentioning

confidence: 99%

Precision tools and models to narrow in on the 750 GeV diphoton resonance

et al. 2016

View full text Add to dashboard Cite

The hints for a new resonance at 750 GeV from ATLAS and CMS have triggered a significant amount of attention. Since the simplest extensions of the standard model cannot accommodate the observation, many alternatives have been considered to explain the excess. Here we focus on several proposed renormalisable weakly-coupled models and revisit results given in the literature. We point out that physically important subtleties are often missed or neglected. To facilitate the study of the excess we have created a collection of 40 model files, selected from recent literature, for the Mathematica package SARAH. With SARAH one can generate files to perform numerical studies using the tailormade spectrum generators FlexibleSUSY and SPheno. These have been extended to automatically include crucial higher order corrections to the diphoton and digluon decay rates for both CP-even and CP-odd scalars. Additionally, we have extended the UFO and CalcHep interfaces of SARAH, a

show abstract

The diphoton resonance as a gravity mediator of dark matter

Cited by 116 publications

References 44 publications

What is the γγ resonance at 750 GeV?

What is the γγ resonance at 750 GeV?

Large mass hierarchies from strongly-coupled dynamics

Precision tools and models to narrow in on the 750 GeV diphoton resonance

Contact Info

Product

Resources

About